[2896] | 1 | #include "DeferredRenderer.h"
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[2859] | 2 | #include "FrameBufferObject.h"
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| 3 | #include "RenderState.h"
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| 4 | #include "SampleGenerator.h"
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[2860] | 5 | #include "Vector3.h"
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| 6 | #include "Camera.h"
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[2884] | 7 | #include "shaderenv.h"
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[2886] | 8 | #include "Halton.h"
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[2895] | 9 | #include "ShadowMapping.h"
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[2952] | 10 | #include "Light.h"
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[3057] | 11 | #include "ShaderManager.h"
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[3213] | 12 | #include "Texture.h"
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| 13 |
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[3198] | 14 | #include <math.h>
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[2858] | 15 |
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[3003] | 16 | #include <IL/il.h>
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| 17 | #include <assert.h>
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[2859] | 18 |
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[3003] | 19 |
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[3021] | 20 | #ifdef _CRT_SET
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| 21 | #define _CRTDBG_MAP_ALLOC
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| 22 | #include <stdlib.h>
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| 23 | #include <crtdbg.h>
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| 24 |
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| 25 | // redefine new operator
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| 26 | #define DEBUG_NEW new(_NORMAL_BLOCK, __FILE__, __LINE__)
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| 27 | #define new DEBUG_NEW
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| 28 | #endif
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| 29 |
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| 30 |
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[2858] | 31 | using namespace std;
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| 32 |
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| 33 |
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[3003] | 34 | static void startil()
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| 35 | {
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| 36 | ilInit();
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| 37 | assert(ilGetError() == IL_NO_ERROR);
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| 38 | }
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| 39 |
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| 40 |
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| 41 | static void stopil()
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| 42 | {
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| 43 | ilShutDown();
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| 44 | assert(ilGetError() == IL_NO_ERROR);
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| 45 | }
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| 46 |
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[3198] | 47 |
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[2858] | 48 | namespace CHCDemoEngine
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| 49 | {
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| 50 |
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[3026] | 51 | static ShaderProgram *sCgSsaoProgram = NULL;
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| 52 | static ShaderProgram *sCgGiProgram = NULL;
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[2873] | 53 |
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[3026] | 54 | static ShaderProgram *sCgDeferredProgram = NULL;
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| 55 | static ShaderProgram *sCgAntiAliasingProgram = NULL;
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| 56 | static ShaderProgram *sCgDeferredShadowProgram = NULL;
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[2859] | 57 |
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[3026] | 58 | static ShaderProgram *sCgCombineSsaoProgram = NULL;
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[3301] | 59 | static ShaderProgram *sCgFilterSsaoProgram = NULL;
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[3026] | 60 | static ShaderProgram *sCgCombineIllumProgram = NULL;
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| 61 | static ShaderProgram *sCgLogLumProgram = NULL;
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| 62 | static ShaderProgram *sCgToneProgram = NULL;
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| 63 | static ShaderProgram *sCgDownSampleProgram = NULL;
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[3137] | 64 | static ShaderProgram *sCgScaleDepthProgram = NULL;
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[3155] | 65 | static ShaderProgram *sCgPrepareSsaoProgram = NULL;
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[3213] | 66 | static ShaderProgram *sCgLenseFlareProgram = NULL;
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[2869] | 67 |
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[3232] | 68 | static ShaderProgram *sCgDOFProgram = NULL;
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[2992] | 69 |
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[3232] | 70 |
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[3129] | 71 | static GLuint noiseTex2D = 0;
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| 72 | static GLuint noiseTex1D = 0;
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[3324] | 73 | static GLuint sampleTex2D = 0;
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[2865] | 74 |
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[3128] | 75 |
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[3324] | 76 | static Sample2 samples2[NUM_PRECOMPUTED_SAMPLES];
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[2859] | 77 | // ssao random spherical samples
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[3324] | 78 | //static Sample2 samples2[NUM_SAMPLES];
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| 79 |
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[3232] | 80 | // pcf samples
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[3103] | 81 | static Sample2 pcfSamples[NUM_PCF_TABS];
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[3232] | 82 | // dof samples
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| 83 | static Sample2 dofSamples[NUM_DOF_TABS];
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[2966] | 84 |
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[3214] | 85 | static Texture *sHaloTex[5];
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[3103] | 86 |
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[3118] | 87 | int DeferredRenderer::colorBufferIdx = 0;
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[2859] | 88 |
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[2992] | 89 |
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[3212] | 90 |
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| 91 |
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[3085] | 92 | /** Helper method that computes the view vectors in the corners of the current view frustum.
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| 93 | */
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[3316] | 94 | static void ComputeViewVectors(PerspectiveCamera *cam,
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| 95 | Vector3 &bl,
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| 96 | Vector3 &br,
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| 97 | Vector3 &tl,
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| 98 | Vector3 &tr)
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[3085] | 99 | {
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| 100 | Vector3 ftl, ftr, fbl, fbr, ntl, ntr, nbl, nbr;
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| 101 | cam->ComputePoints(ftl, ftr, fbl, fbr, ntl, ntr, nbl, nbr);
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| 102 |
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| 103 | bl = Normalize(nbl - fbl);
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| 104 | br = Normalize(nbr - fbr);
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| 105 | tl = Normalize(ntl - ftl);
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| 106 | tr = Normalize(ntr - ftr);
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| 107 | }
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| 108 |
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| 109 |
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[3025] | 110 | static float GaussianDistribution(float x, float y, float rho)
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| 111 | {
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[3110] | 112 | float g = 1.0f / sqrtf(2.0f * M_PI * rho * rho);
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[3133] | 113 | g *= expf( -(x * x + y * y) / (2.0f * rho * rho));
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[3025] | 114 |
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| 115 | return g;
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| 116 | }
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| 117 |
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| 118 |
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[2859] | 119 | static void PrintGLerror(char *msg)
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| 120 | {
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| 121 | GLenum errCode;
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| 122 | const GLubyte *errStr;
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| 123 |
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| 124 | if ((errCode = glGetError()) != GL_NO_ERROR)
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| 125 | {
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| 126 | errStr = gluErrorString(errCode);
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| 127 | fprintf(stderr,"OpenGL ERROR: %s: %s\n", errStr, msg);
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| 128 | }
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| 129 | }
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| 130 |
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| 131 |
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[3206] | 132 | static Sample2 UnitTest(float x, float y, int wi, int he)
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[3198] | 133 | {
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| 134 | Sample2 s;
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| 135 |
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| 136 | s.x = float(floor(x * (float)wi - 0.5f) + 1.0f) / (float)wi;
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| 137 | s.y = float(floor(y * (float)he - 0.5f) + 1.0f) / (float)he;
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| 138 |
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| 139 | return s;
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| 140 | }
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| 141 |
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| 142 |
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[3134] | 143 | static void ComputeSampleOffsets(float *sampleOffsets,
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| 144 | int imageW, int imageH,
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| 145 | float width,
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| 146 | int samples)
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| 147 | {
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| 148 | const float xoffs = width / (float)imageW;
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| 149 | const float yoffs = width / (float)imageH;
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[3017] | 150 |
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[3134] | 151 | const int numSamples = (int)sqrt((float)samples);
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| 152 | const int startSamples = -numSamples / 2;
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| 153 | const int endSamples = numSamples + startSamples - 1;
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| 154 | //cout << startSamples << " " << endSamples << endl;
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[2976] | 155 |
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[3134] | 156 | int idx = 0;
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[3017] | 157 |
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[3134] | 158 | for (int x = startSamples; x <= endSamples; ++ x)
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[3017] | 159 | {
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[3134] | 160 | for (int y = startSamples; y <= endSamples; ++ y)
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[3017] | 161 | {
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[3134] | 162 | sampleOffsets[idx + 0] = (float)x * xoffs;
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| 163 | sampleOffsets[idx + 1] = (float)y * yoffs;
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[3017] | 164 | idx += 2;
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| 165 | }
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| 166 | }
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| 167 | }
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| 168 |
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[3026] | 169 |
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[3327] | 170 | static float *GrabTexture(GLuint tex, int w, int h)
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| 171 | {
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| 172 | glBindTexture(GL_TEXTURE_2D, tex);
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| 173 |
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| 174 | float *data = new float[w * h * 3];
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| 175 |
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| 176 | glGetTexImage(GL_TEXTURE_2D, 0, GL_RGB, GL_FLOAT, data);
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| 177 |
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| 178 | glBindTexture(GL_TEXTURE_2D, 0);
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| 179 | glDisable(GL_TEXTURE_2D);
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| 180 |
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| 181 | return data;
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| 182 | }
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| 183 |
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| 184 |
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[3132] | 185 | void DeferredRenderer::FlipFbos(FrameBufferObject *fbo)
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| 186 | {
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| 187 | fbo->Bind();
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| 188 | colorBufferIdx = 3 - colorBufferIdx;
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| 189 | glDrawBuffers(1, mrt + colorBufferIdx);
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| 190 | }
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| 191 |
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| 192 |
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[3026] | 193 | void DeferredRenderer::DrawQuad(ShaderProgram *p)
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| 194 | {
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[3132] | 195 | if (p) p->Bind();
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[3026] | 196 |
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[3089] | 197 | // interpolate the view vector
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[3085] | 198 | Vector3 bl = mCornersView[0];
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| 199 | Vector3 br = mCornersView[1];
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| 200 | Vector3 tl = mCornersView[2];
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| 201 | Vector3 tr = mCornersView[3];
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| 202 |
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[3026] | 203 | // note: slightly larger texture could hide ambient occlusion error on border but costs resolution
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| 204 | glBegin(GL_QUADS);
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| 205 |
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[3093] | 206 | glTexCoord2f(0, 0); glMultiTexCoord3fARB(GL_TEXTURE1_ARB, bl.x, bl.y, bl.z); glVertex2f( .0f, .0f);
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| 207 | glTexCoord2f(1, 0); glMultiTexCoord3fARB(GL_TEXTURE1_ARB, br.x, br.y, br.z); glVertex2f(1.0f, .0f);
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| 208 | glTexCoord2f(1, 1); glMultiTexCoord3fARB(GL_TEXTURE1_ARB, tr.x, tr.y, tr.z); glVertex2f(1.0f, 1.0f);
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| 209 | glTexCoord2f(0, 1); glMultiTexCoord3fARB(GL_TEXTURE1_ARB, tl.x, tl.y, tl.z); glVertex2f( .0f, 1.0f);
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[3026] | 210 |
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| 211 | glEnd();
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| 212 | }
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| 213 |
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[2859] | 214 | /** Generate poisson disc distributed sample points on the unit disc
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| 215 | */
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[2887] | 216 | static void GenerateSamples(int sampling)
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[2859] | 217 | {
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[2887] | 218 | switch (sampling)
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| 219 | {
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[2930] | 220 | case DeferredRenderer::SAMPLING_POISSON:
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[2887] | 221 | {
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[3338] | 222 | PoissonDiscSampleGenerator2D poisson(NUM_PRECOMPUTED_SAMPLES, 1.0f);
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[2900] | 223 | poisson.Generate((float *)samples2);
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[2887] | 224 | }
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| 225 | break;
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[2930] | 226 | case DeferredRenderer::SAMPLING_QUADRATIC:
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[2887] | 227 | {
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[3338] | 228 | //PoissonDiscSampleGenerator2D poisson(NUM_PRECOMPUTED_SAMPLES, 1.0f);
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| 229 | //poisson.Generate((float *)samples2);
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[3324] | 230 | QuadraticDiscSampleGenerator2D g(NUM_PRECOMPUTED_SAMPLES, 1.0f);
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[2930] | 231 | g.Generate((float *)samples2);
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[2887] | 232 | }
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| 233 | break;
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[2930] | 234 | default: // SAMPLING_DEFAULT
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[3026] | 235 | {
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[3343] | 236 | RandomSampleGenerator2D g(NUM_PRECOMPUTED_SAMPLES, 1.0f);
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[3026] | 237 | g.Generate((float *)samples2);
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| 238 | }
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[2903] | 239 | }
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[2859] | 240 | }
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| 241 |
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| 242 |
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[2879] | 243 | static void CreateNoiseTex2D(int w, int h)
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| 244 | {
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| 245 | //GLubyte *randomNormals = new GLubyte[mWidth * mHeight * 3];
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[3227] | 246 | Vector3 *randomNormals = new Vector3[w * h];
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[2879] | 247 |
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[3227] | 248 | for (int i = 0; i < w * h; ++ i)
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[2879] | 249 | {
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[2903] | 250 | // create random samples on a circle
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[3227] | 251 | const float r = RandomValue(0, 1);
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[2903] | 252 |
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[3227] | 253 | const float theta = 2.0f * acos(sqrt(1.0f - r));
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| 254 | //randomNormals[i] = Vector3(cos(theta), sin(theta), 0);
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| 255 | randomNormals[i] = Vector3(RandomValue(-M_PI, M_PI), 0, 0);
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| 256 | //Normalize(randomNormals[i]);
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[2879] | 257 | }
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| 258 |
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[3227] | 259 |
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[2879] | 260 | glEnable(GL_TEXTURE_2D);
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[3129] | 261 | glGenTextures(1, &noiseTex2D);
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| 262 | glBindTexture(GL_TEXTURE_2D, noiseTex2D);
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[2879] | 263 |
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[3227] | 264 | //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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| 265 | //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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| 266 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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| 267 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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[2879] | 268 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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| 269 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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| 270 |
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[3227] | 271 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, w, h, 0, GL_RGB, GL_FLOAT, (float *)randomNormals);
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[2879] | 272 |
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| 273 | glBindTexture(GL_TEXTURE_2D, 0);
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| 274 | glDisable(GL_TEXTURE_2D);
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| 275 |
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| 276 | delete [] randomNormals;
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| 277 |
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| 278 | cout << "created noise texture" << endl;
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| 279 |
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| 280 | PrintGLerror("noisetexture");
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| 281 | }
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| 282 |
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| 283 |
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[3326] | 284 | static void UpdateSampleTex(Sample2 *samples, int numSamples)
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| 285 | {
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| 286 | glEnable(GL_TEXTURE_2D);
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| 287 | glBindTexture(GL_TEXTURE_2D, sampleTex2D);
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| 288 |
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| 289 | const int w = numSamples; const int h = 1;
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| 290 |
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| 291 | float *tempBuffer = new float[numSamples * 3];
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| 292 |
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| 293 | for (int i = 0; i < numSamples; ++ i)
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| 294 | {
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| 295 | tempBuffer[i * 3 + 0] = samples[i].x;
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| 296 | tempBuffer[i * 3 + 1] = samples[i].y;
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| 297 | tempBuffer[i * 3 + 2] = 0;
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| 298 | }
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| 299 |
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| 300 | glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, GL_RGB, GL_FLOAT, (float *)tempBuffer);
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| 301 |
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[3333] | 302 | glBindTexture(GL_TEXTURE_2D, 0);
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[3326] | 303 | glDisable(GL_TEXTURE_2D);
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| 304 |
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| 305 | cout << "updated sample texture" << endl;
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| 306 |
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| 307 | delete [] tempBuffer;
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| 308 |
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[3332] | 309 | PrintGLerror("update sample tex");
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[3326] | 310 | }
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| 311 |
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| 312 |
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[3324] | 313 | static void CreateSampleTex(Sample2 *samples, int numSamples)
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| 314 | {
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| 315 | glEnable(GL_TEXTURE_2D);
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| 316 | glGenTextures(1, &sampleTex2D);
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| 317 | glBindTexture(GL_TEXTURE_2D, sampleTex2D);
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| 318 |
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| 319 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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| 320 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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| 321 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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| 322 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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| 323 |
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[3326] | 324 | const int w = numSamples; const int h = 1;
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[3324] | 325 |
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| 326 | float *tempBuffer = new float[numSamples * 3];
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| 327 |
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| 328 | for (int i = 0; i < numSamples; ++ i)
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| 329 | {
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| 330 | tempBuffer[i * 3 + 0] = samples[i].x;
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| 331 | tempBuffer[i * 3 + 1] = samples[i].y;
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| 332 | tempBuffer[i * 3 + 2] = 0;
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| 333 | }
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| 334 |
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| 335 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA32F_ARB, w, h, 0, GL_RGB, GL_FLOAT, (float *)tempBuffer);
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| 336 |
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| 337 | glBindTexture(GL_TEXTURE_2D, 0);
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| 338 | glDisable(GL_TEXTURE_2D);
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| 339 |
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| 340 | cout << "created sample texture" << endl;
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| 341 |
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| 342 | delete [] tempBuffer;
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| 343 |
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[3332] | 344 | PrintGLerror("create sample tex");
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[3324] | 345 | }
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| 346 |
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| 347 |
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[3213] | 348 | static void PrepareLenseFlare()
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| 349 | {
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[3214] | 350 | string textures[] = {"flare4.tga", "lens2.jpg", "lens3.jpg", "lens4.jpg", "lens1.jpg"};
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[3213] | 351 |
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[3270] | 352 | // todo: delete halo textures
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[3214] | 353 | for (int i = 0; i < 5; ++ i)
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[3213] | 354 | {
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| 355 | sHaloTex[i] = new Texture(model_path + textures[i]);
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| 356 |
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[3214] | 357 | sHaloTex[i]->SetBoundaryModeS(Texture::BORDER);
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| 358 | sHaloTex[i]->SetBoundaryModeT(Texture::BORDER);
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[3213] | 359 |
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| 360 | sHaloTex[i]->Create();
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| 361 | }
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| 362 |
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| 363 | cout << "prepared lense flare textures" << endl;
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| 364 |
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| 365 | PrintGLerror("prepare lense flare");
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| 366 | }
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| 367 |
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| 368 |
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[3216] | 369 | DeferredRenderer::DeferredRenderer(int w, int h,
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| 370 | PerspectiveCamera *cam,
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| 371 | bool ssaoUseFullResolution):
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[2860] | 372 | mWidth(w), mHeight(h),
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| 373 | mCamera(cam),
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[2875] | 374 | mUseTemporalCoherence(true),
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[2895] | 375 | mRegenerateSamples(true),
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[2930] | 376 | mSamplingMethod(SAMPLING_POISSON),
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[2895] | 377 | mShadingMethod(DEFAULT),
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[3189] | 378 | mIllumFboIndex(0),
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[3212] | 379 | mSortSamples(true),
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| 380 | mKernelRadius(1e-8f),
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[3215] | 381 | mSampleIntensity(0.2f),
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[3219] | 382 | mSunVisiblePixels(0),
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[3220] | 383 | mSavedFrameNumber(-1),
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[3235] | 384 | mSavedFrameSuffix(""),
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[3242] | 385 | mMaxDistance(1e6f),
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| 386 | mTempCohFactor(.0f),
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| 387 | mUseToneMapping(false),
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| 388 | mUseAntiAliasing(false),
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[3305] | 389 | mUseDepthOfField(false),
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[3316] | 390 | mSsaoUseFullResolution(ssaoUseFullResolution),
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[3319] | 391 | mMaxConvergence(2000.0f),
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| 392 | mSpatialWeight(.0f)
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[2861] | 393 | {
|
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| 394 | ///////////
|
---|
| 395 | //-- the flip-flop fbos
|
---|
[2859] | 396 |
|
---|
[3216] | 397 | int downSampledWidth, downSampledHeight;
|
---|
| 398 |
|
---|
[3305] | 399 | if (mSsaoUseFullResolution)
|
---|
[3216] | 400 | {
|
---|
| 401 | downSampledWidth = w; downSampledHeight = h;
|
---|
| 402 | cout << "using full resolution ssao" << endl;
|
---|
| 403 | }
|
---|
| 404 | else
|
---|
| 405 | {
|
---|
| 406 | downSampledWidth = w / 2; downSampledHeight = h / 2;
|
---|
| 407 | cout << "using half resolution ssao" << endl;
|
---|
| 408 | }
|
---|
| 409 |
|
---|
[3305] | 410 |
|
---|
| 411 | /////////
|
---|
[3301] | 412 | //-- the illumination fbo is either half size or full size
|
---|
| 413 |
|
---|
[3216] | 414 | mIllumFbo = new FrameBufferObject(downSampledWidth, downSampledHeight, FrameBufferObject::DEPTH_NONE);
|
---|
[3019] | 415 | mFBOs.push_back(mIllumFbo);
|
---|
[2891] | 416 |
|
---|
[3019] | 417 | for (int i = 0; i < 4; ++ i)
|
---|
| 418 | {
|
---|
[3342] | 419 | mIllumFbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
|
---|
[3117] | 420 | FrameBufferObject::InitBuffer(mIllumFbo, i);
|
---|
[3019] | 421 | }
|
---|
[3002] | 422 |
|
---|
[3117] | 423 |
|
---|
| 424 | ///////////////
|
---|
[3212] | 425 | //-- the downsampled ssao + color bleeding textures:
|
---|
[3305] | 426 | //-- as GI is mostly low frequency, we can use lower resolution to improve performance
|
---|
[3117] | 427 |
|
---|
[3222] | 428 | mDownSampleFbo = new FrameBufferObject(downSampledWidth, downSampledHeight, FrameBufferObject::DEPTH_NONE);
|
---|
[3204] | 429 | // the downsampled color + depth buffer
|
---|
[3002] | 430 | mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
|
---|
[3204] | 431 | // downsample buffer for the normal texture
|
---|
[3212] | 432 | mDownSampleFbo->AddColorBuffer(ColorBufferObject::RGB_FLOAT_16, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
|
---|
[3019] | 433 |
|
---|
[3199] | 434 | for (int i = 0; i < 2; ++ i)
|
---|
| 435 | {
|
---|
| 436 | FrameBufferObject::InitBuffer(mDownSampleFbo, i);
|
---|
| 437 | }
|
---|
[3117] | 438 |
|
---|
[3019] | 439 | mFBOs.push_back(mDownSampleFbo);
|
---|
[3038] | 440 |
|
---|
[3305] | 441 |
|
---|
| 442 | /////////
|
---|
| 443 | //-- temporal buffer
|
---|
| 444 |
|
---|
| 445 | mTempFbo = new FrameBufferObject(mWidth, mHeight, FrameBufferObject::DEPTH_NONE);
|
---|
| 446 | mFBOs.push_back(mTempFbo);
|
---|
| 447 |
|
---|
| 448 | mTempFbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
|
---|
[3350] | 449 | mTempFbo->AddColorBuffer(ColorBufferObject::RGBA_FLOAT_32, ColorBufferObject::WRAP_CLAMP_TO_EDGE, ColorBufferObject::FILTER_LINEAR);
|
---|
[3305] | 450 | FrameBufferObject::InitBuffer(mTempFbo, 0);
|
---|
[3350] | 451 | FrameBufferObject::InitBuffer(mTempFbo, 1);
|
---|
[3305] | 452 |
|
---|
| 453 |
|
---|
[3084] | 454 | // create noise texture for ssao
|
---|
[3150] | 455 | // for performance reasons we use a smaller texture and repeat it over the screen
|
---|
| 456 | CreateNoiseTex2D(mIllumFbo->GetWidth() / 4, mIllumFbo->GetWidth() / 4);
|
---|
[3301] | 457 |
|
---|
[3085] | 458 | mProjViewMatrix = IdentityMatrix();
|
---|
| 459 | mOldProjViewMatrix = IdentityMatrix();
|
---|
| 460 |
|
---|
| 461 | for (int i = 0; i < 4; ++ i)
|
---|
| 462 | {
|
---|
| 463 | mCornersView[i] = mOldCornersView[i] = Vector3::UNIT_X();
|
---|
| 464 | }
|
---|
| 465 |
|
---|
| 466 | mEyePos = mOldEyePos = Vector3::ZERO();
|
---|
| 467 |
|
---|
[3213] | 468 | PrepareLenseFlare();
|
---|
| 469 |
|
---|
[3038] | 470 | InitCg();
|
---|
[2861] | 471 | }
|
---|
| 472 |
|
---|
| 473 |
|
---|
[2896] | 474 | DeferredRenderer::~DeferredRenderer()
|
---|
[2861] | 475 | {
|
---|
[3019] | 476 | CLEAR_CONTAINER(mFBOs);
|
---|
[3206] | 477 |
|
---|
[3129] | 478 | glDeleteTextures(1, &noiseTex2D);
|
---|
| 479 | glDeleteTextures(1, &noiseTex1D);
|
---|
[2861] | 480 | }
|
---|
| 481 |
|
---|
| 482 |
|
---|
[3038] | 483 | void DeferredRenderer::InitCg()
|
---|
[3026] | 484 | {
|
---|
[3057] | 485 | ShaderManager *sm = ShaderManager::GetSingleton();
|
---|
[2873] | 486 |
|
---|
[3216] | 487 | sCgDeferredProgram = sm->CreateFragmentProgram("deferred", "main", "DeferredFrag");
|
---|
| 488 | sCgDeferredShadowProgram = sm->CreateFragmentProgram("deferred", "main_shadow", "DeferredFragShadow");
|
---|
| 489 | sCgSsaoProgram = sm->CreateFragmentProgram("ssao", "main", "SsaoFrag");
|
---|
| 490 | sCgGiProgram = sm->CreateFragmentProgram("globillum", "main", "GiFrag");
|
---|
| 491 | sCgCombineIllumProgram = sm->CreateFragmentProgram("globillum", "combine", "CombineGi");
|
---|
[3305] | 492 |
|
---|
| 493 | if (mSsaoUseFullResolution)
|
---|
| 494 | {
|
---|
| 495 | sCgFilterSsaoProgram = sm->CreateFragmentProgram("combineSsaoSep", "FilterSsaoFullRes", "FilterSsao");
|
---|
| 496 | }
|
---|
| 497 | else
|
---|
| 498 | {
|
---|
| 499 | sCgFilterSsaoProgram = sm->CreateFragmentProgram("combineSsaoSep", "FilterSsaoHalfRes", "FilterSsao");
|
---|
| 500 | }
|
---|
| 501 |
|
---|
| 502 | sCgCombineSsaoProgram = sm->CreateFragmentProgram("combineSsaoSep", "CombineSsao", "CombineSsao");
|
---|
[3216] | 503 | sCgAntiAliasingProgram = sm->CreateFragmentProgram("antialiasing", "main", "AntiAliasing");
|
---|
| 504 | sCgToneProgram = sm->CreateFragmentProgram("tonemap", "ToneMap", "ToneMap");
|
---|
[3137] | 505 | sCgDownSampleProgram = sm->CreateFragmentProgram("deferred", "Output", "Output");
|
---|
| 506 | sCgScaleDepthProgram = sm->CreateFragmentProgram("deferred", "ScaleDepth", "ScaleDepth");
|
---|
[3216] | 507 | sCgLogLumProgram = sm->CreateFragmentProgram("tonemap", "CalcAvgLogLum", "AvgLogLum");
|
---|
[3155] | 508 | sCgPrepareSsaoProgram = sm->CreateFragmentProgram("deferred", "PrepareSsao", "PrepareSsao");
|
---|
[3213] | 509 | sCgLenseFlareProgram = sm->CreateFragmentProgram("lenseFlare", "LenseFlare", "LenseFlare");
|
---|
[3232] | 510 | sCgDOFProgram = sm->CreateFragmentProgram("depthOfField", "DepthOfField", "DepthOfField");
|
---|
[3038] | 511 |
|
---|
[3034] | 512 |
|
---|
[3104] | 513 | ///////////////////
|
---|
| 514 | //-- initialize program parameters
|
---|
[3034] | 515 |
|
---|
[3104] | 516 | string ssaoParams[] =
|
---|
[3313] | 517 | {"colors", "normals", "oldTex", "noiseTex", "temporalCoherence",
|
---|
[3111] | 518 | "samples", "bl", "br", "tl", "tr",
|
---|
| 519 | "modelViewProj", "oldModelViewProj", "oldEyePos", "oldbl", "oldbr",
|
---|
[3212] | 520 | "oldtl", "oldtr", "attribsTex", "kernelRadius", "sampleIntensity"};
|
---|
[3324] | 521 |
|
---|
[3212] | 522 | sCgSsaoProgram->AddParameters(ssaoParams, 0, 20);
|
---|
[3085] | 523 |
|
---|
[3104] | 524 | string giParams[] =
|
---|
| 525 | {"colors", "normals", "noiseTex", "oldSsaoTex", "oldIllumTex",
|
---|
[3111] | 526 | "temporalCoherence", "samples", "bl", "br", "tl",
|
---|
| 527 | "tr", "oldModelViewProj", "modelViewProj"};
|
---|
[3232] | 528 |
|
---|
[3104] | 529 | sCgGiProgram->AddParameters(giParams, 0, 13);
|
---|
[3034] | 530 |
|
---|
[3104] | 531 | string toneParams[] = {"colors", "imageKey", "whiteLum", "middleGrey"};
|
---|
| 532 | sCgToneProgram->AddParameters(toneParams, 0, 4);
|
---|
[3034] | 533 |
|
---|
| 534 |
|
---|
[3104] | 535 | ////////////////
|
---|
| 536 |
|
---|
| 537 | string deferredShadowParams[] =
|
---|
| 538 | {"colors", "normals", "shadowMap", "noiseTex", "shadowMatrix",
|
---|
| 539 | "sampleWidth", "lightDir", "eyePos", "samples", "weights"};
|
---|
[3035] | 540 |
|
---|
[3104] | 541 | sCgDeferredShadowProgram->AddParameters(deferredShadowParams, 0, 10);
|
---|
| 542 |
|
---|
| 543 | ////////////////
|
---|
[3034] | 544 |
|
---|
[3104] | 545 | string combineIllumParams[] = {"colorsTex", "ssaoTex", "illumTex"};
|
---|
| 546 | sCgCombineIllumProgram->AddParameters(combineIllumParams, 0, 3);
|
---|
[3035] | 547 |
|
---|
[3104] | 548 | ////////////////
|
---|
[3035] | 549 |
|
---|
[3299] | 550 | string combineSsaoParams[] =
|
---|
[3319] | 551 | {"colorsTex", "ssaoTex", "bl", "br", "tl", "tr", "res", "maxConvergence", "spatialWeight"};
|
---|
[3232] | 552 |
|
---|
[3319] | 553 | sCgCombineSsaoProgram->AddParameters(combineSsaoParams, 0, 9);
|
---|
[3035] | 554 |
|
---|
[3301] | 555 |
|
---|
| 556 | ////////////////
|
---|
[3299] | 557 |
|
---|
[3301] | 558 | string filterSsaoParams[] =
|
---|
[3319] | 559 | {"colorsTex", "ssaoTex", "bl", "br", "tl", "tr", "res", "maxConvergence", "spatialWeight"};
|
---|
| 560 | sCgFilterSsaoProgram->AddParameters(filterSsaoParams, 0, 9);
|
---|
[3301] | 561 |
|
---|
| 562 |
|
---|
[3104] | 563 | //////////////
|
---|
[3036] | 564 |
|
---|
[3350] | 565 | string deferredParams[] = {"colors", "normals", "lightDir", "aoTex"};
|
---|
| 566 | sCgDeferredProgram->AddParameters(deferredParams, 0, 4);
|
---|
[3104] | 567 |
|
---|
| 568 | ///////////////////
|
---|
| 569 |
|
---|
[3136] | 570 | string aaParams[] = {"colors", "normals", "offsets"};
|
---|
| 571 | sCgAntiAliasingProgram->AddParameters(aaParams, 0, 3);
|
---|
[3104] | 572 |
|
---|
| 573 | /////////////////////
|
---|
| 574 |
|
---|
[3137] | 575 | string downSampleParams[] = {"colors"};
|
---|
| 576 | sCgDownSampleProgram->AddParameters(downSampleParams, 0, 1);
|
---|
[3104] | 577 |
|
---|
[3137] | 578 | /////////////////////
|
---|
| 579 |
|
---|
| 580 | string scaleDepthParams[] = {"colors"};
|
---|
| 581 | sCgScaleDepthProgram->AddParameters(scaleDepthParams, 0, 1);
|
---|
| 582 |
|
---|
[3104] | 583 | ////////////
|
---|
| 584 |
|
---|
| 585 | sCgLogLumProgram->AddParameter("colors", 0);
|
---|
[3128] | 586 |
|
---|
| 587 | ////////////////
|
---|
| 588 |
|
---|
[3155] | 589 |
|
---|
| 590 | string prepareSsaoParams[] =
|
---|
[3326] | 591 | {"colorsTex", "normalsTex", "diffVals", "oldTex",
|
---|
[3167] | 592 | "oldEyePos", "modelViewProj", "oldModelViewProj",
|
---|
[3326] | 593 | "oldbl", "oldbr", "oldtl", "oldtr", "myTex"};
|
---|
[3325] | 594 | sCgPrepareSsaoProgram->AddParameters(prepareSsaoParams, 0, 12);
|
---|
[3155] | 595 |
|
---|
| 596 |
|
---|
| 597 | ////////////////
|
---|
[3213] | 598 |
|
---|
| 599 | string lenseFlareParams[] =
|
---|
| 600 | {"colorsTex", "flareTex1", "flareTex2", "flareTex3", "flareTex4",
|
---|
[3215] | 601 | "flareTex5", "vectorToLight", "distanceToLight", "sunVisiblePixels"};
|
---|
[3213] | 602 |
|
---|
[3215] | 603 | sCgLenseFlareProgram->AddParameters(lenseFlareParams, 0, 9);
|
---|
[3213] | 604 |
|
---|
[3232] | 605 |
|
---|
| 606 | ////////////////
|
---|
| 607 |
|
---|
[3235] | 608 | string dofParams[] = {"colorsTex", "filterOffs", "sceneRange", "zFocus"};
|
---|
[3213] | 609 |
|
---|
[3235] | 610 | sCgDOFProgram->AddParameters(dofParams, 0, 4);
|
---|
[3232] | 611 |
|
---|
| 612 |
|
---|
[3144] | 613 | /////////
|
---|
[3133] | 614 | //-- pcf tabs for shadowing
|
---|
| 615 |
|
---|
[3026] | 616 | float filterWeights[NUM_PCF_TABS];
|
---|
[3227] | 617 | PoissonDiscSampleGenerator2D poisson2(NUM_PCF_TABS, 1.0f);
|
---|
[3103] | 618 | poisson2.Generate((float *)pcfSamples);
|
---|
[2990] | 619 |
|
---|
[3026] | 620 | for (int i = 0; i < NUM_PCF_TABS; ++ i)
|
---|
[2880] | 621 | {
|
---|
[3026] | 622 | filterWeights[i] = GaussianDistribution(pcfSamples[i].x, pcfSamples[i].y, 1.0f);
|
---|
[2880] | 623 | }
|
---|
| 624 |
|
---|
[3035] | 625 | sCgDeferredShadowProgram->SetArray2f(8, (float *)pcfSamples, NUM_PCF_TABS);
|
---|
| 626 | sCgDeferredShadowProgram->SetArray1f(9, (float *)filterWeights, NUM_PCF_TABS);
|
---|
[2880] | 627 |
|
---|
[3232] | 628 |
|
---|
| 629 | /////////
|
---|
| 630 | //-- pcf tabs for depth of field
|
---|
| 631 |
|
---|
| 632 | // todo matt: it is stupid to put num samples and width of kernel into constructor => change this!!!
|
---|
| 633 | PoissonDiscSampleGenerator2D poisson3(NUM_DOF_TABS, 1.0f);
|
---|
[3235] | 634 | poisson3.Generate((float *)dofSamples);
|
---|
[3232] | 635 |
|
---|
[3235] | 636 | for (int i = 0; i < NUM_DOF_TABS; ++ i)
|
---|
| 637 | {
|
---|
| 638 | dofSamples[i].x *= 1.0f / mWidth;
|
---|
| 639 | dofSamples[i].y *= 1.0f / mHeight;
|
---|
| 640 | }
|
---|
| 641 |
|
---|
[3232] | 642 | //float dofWeights[NUM_PCF_TABS];
|
---|
| 643 | //sCgDOFProgram->SetArray1f(2, (float *)dofWeights, NUM_DOF_TABS);
|
---|
| 644 |
|
---|
[2859] | 645 | PrintGLerror("init");
|
---|
| 646 | }
|
---|
| 647 |
|
---|
| 648 |
|
---|
[2896] | 649 | void DeferredRenderer::Render(FrameBufferObject *fbo,
|
---|
[2952] | 650 | DirectionalLight *light,
|
---|
[2991] | 651 | ShadowMap *shadowMap
|
---|
| 652 | )
|
---|
[2859] | 653 | {
|
---|
[3085] | 654 | InitFrame();
|
---|
| 655 |
|
---|
[3350] | 656 | /*if (shadowMap)
|
---|
[2952] | 657 | FirstPassShadow(fbo, light, shadowMap);
|
---|
[2895] | 658 | else
|
---|
[2952] | 659 | FirstPass(fbo, light);
|
---|
[3350] | 660 | */
|
---|
[2944] | 661 |
|
---|
[3103] | 662 | if (mShadingMethod != 0)
|
---|
[2880] | 663 | {
|
---|
[3332] | 664 | PrepareSsao(fbo); // downsample fbo buffers
|
---|
[3103] | 665 | }
|
---|
[3006] | 666 |
|
---|
[3213] | 667 | // q: use antialiasing before or after ssao?
|
---|
[3193] | 668 | //if (useAntiAliasing) AntiAliasing(fbo, light);
|
---|
[3132] | 669 |
|
---|
[3103] | 670 | switch (mShadingMethod)
|
---|
| 671 | {
|
---|
| 672 | case SSAO:
|
---|
[3242] | 673 | ComputeSsao(fbo, mTempCohFactor);
|
---|
[3301] | 674 | FilterSsao(fbo);
|
---|
[2944] | 675 | CombineSsao(fbo);
|
---|
| 676 | break;
|
---|
| 677 | case GI:
|
---|
[3242] | 678 | ComputeGlobIllum(fbo, mTempCohFactor);
|
---|
[2944] | 679 | CombineIllum(fbo);
|
---|
| 680 | break;
|
---|
[3214] | 681 | default:
|
---|
[2944] | 682 | // do nothing: standard deferred shading
|
---|
| 683 | break;
|
---|
| 684 | }
|
---|
[2884] | 685 |
|
---|
[3350] | 686 | if (shadowMap)
|
---|
| 687 | FirstPassShadow(fbo, light, shadowMap);
|
---|
| 688 | else
|
---|
| 689 | FirstPass(fbo, light);
|
---|
| 690 |
|
---|
[3242] | 691 | /// depth of field
|
---|
| 692 | if (mUseDepthOfField)
|
---|
| 693 | {
|
---|
| 694 | DepthOfField(fbo);
|
---|
| 695 | }
|
---|
[3235] | 696 |
|
---|
[3242] | 697 | if (mUseToneMapping)
|
---|
[2991] | 698 | {
|
---|
| 699 | float imageKey, whiteLum, middleGrey;
|
---|
| 700 |
|
---|
| 701 | ComputeToneParameters(fbo, light, imageKey, whiteLum, middleGrey);
|
---|
[3007] | 702 | ToneMap(fbo, imageKey, whiteLum, middleGrey);
|
---|
[2991] | 703 | }
|
---|
| 704 |
|
---|
[3215] | 705 | /// compute lense flare
|
---|
| 706 | LenseFlare(fbo, light);
|
---|
[3213] | 707 |
|
---|
[3219] | 708 | const bool saveFrame = (mSavedFrameNumber != -1);
|
---|
| 709 | const bool displayAfterAA = !saveFrame;
|
---|
| 710 |
|
---|
[3175] | 711 | // multisampling is difficult / costly with deferred shading
|
---|
| 712 | // at least do some edge blurring
|
---|
[3242] | 713 | if (mUseAntiAliasing) AntiAliasing(fbo, light, displayAfterAA);
|
---|
[3219] | 714 |
|
---|
| 715 | /// store the current frame
|
---|
| 716 | if (saveFrame) SaveFrame(fbo);
|
---|
[3135] | 717 |
|
---|
[3219] | 718 | // if it hasn't been done yet => just output the latest buffer
|
---|
[3242] | 719 | if (!mUseAntiAliasing || !displayAfterAA)
|
---|
[3326] | 720 | {
|
---|
[3219] | 721 | Output(fbo);
|
---|
[3326] | 722 | }
|
---|
[3219] | 723 |
|
---|
[2867] | 724 | glEnable(GL_LIGHTING);
|
---|
| 725 | glDisable(GL_TEXTURE_2D);
|
---|
| 726 |
|
---|
| 727 | glMatrixMode(GL_PROJECTION);
|
---|
| 728 | glPopMatrix();
|
---|
| 729 |
|
---|
| 730 | glMatrixMode(GL_MODELVIEW);
|
---|
| 731 | glPopMatrix();
|
---|
| 732 |
|
---|
[3089] | 733 | // viewport
|
---|
[2867] | 734 | glPopAttrib();
|
---|
| 735 |
|
---|
[3007] | 736 | FrameBufferObject::Release();
|
---|
[3057] | 737 | ShaderManager::GetSingleton()->DisableFragmentProfile();
|
---|
[2859] | 738 | }
|
---|
| 739 |
|
---|
| 740 |
|
---|
[3167] | 741 | static inline float SqrMag(const Sample2 &s)
|
---|
| 742 | {
|
---|
| 743 | return (s.x * s.x + s.y * s.y);
|
---|
| 744 | }
|
---|
| 745 |
|
---|
| 746 |
|
---|
| 747 | static inline float SqrDist(const Sample2 &a, const Sample2 &b)
|
---|
| 748 | {
|
---|
| 749 | float x = a.x - b.x;
|
---|
| 750 | float y = a.y - b.y;
|
---|
| 751 |
|
---|
| 752 | return x * x + y * y;
|
---|
| 753 | }
|
---|
| 754 |
|
---|
| 755 |
|
---|
| 756 | static inline bool lt(const Sample2 &a, const Sample2 &b)
|
---|
| 757 | {
|
---|
| 758 | return SqrMag(a) < SqrMag(b);
|
---|
| 759 | }
|
---|
| 760 |
|
---|
| 761 |
|
---|
| 762 | void DeferredRenderer::SortSamples()
|
---|
| 763 | {
|
---|
| 764 | static Sample2 tempSamples[NUM_SAMPLES];
|
---|
| 765 | static bool checked[NUM_SAMPLES];
|
---|
| 766 |
|
---|
| 767 | for (int i = 0; i < NUM_SAMPLES; ++ i)
|
---|
| 768 | checked[i] = false;
|
---|
| 769 |
|
---|
| 770 | Sample2 currentSample;
|
---|
| 771 | currentSample.x = 0; currentSample.y = 0;
|
---|
| 772 | int ns = 0; // the next sample index
|
---|
| 773 |
|
---|
| 774 | for (int i = 0; i < NUM_SAMPLES; ++ i)
|
---|
| 775 | {
|
---|
| 776 | float minLen = 1e20f;
|
---|
| 777 |
|
---|
| 778 | for (int j = 0; j < NUM_SAMPLES; ++ j)
|
---|
| 779 | {
|
---|
| 780 | if (checked[j]) continue;
|
---|
| 781 |
|
---|
| 782 | Sample2 s = samples2[j];
|
---|
| 783 | const float len = SqrDist(s, currentSample);
|
---|
| 784 |
|
---|
| 785 | if (len < minLen)
|
---|
| 786 | {
|
---|
| 787 | minLen = len;
|
---|
| 788 | ns = j;
|
---|
| 789 | }
|
---|
| 790 | }
|
---|
| 791 |
|
---|
| 792 | tempSamples[i] = samples2[ns];
|
---|
| 793 | currentSample = samples2[ns];
|
---|
[3327] | 794 |
|
---|
[3167] | 795 | checked[ns] = true;
|
---|
| 796 | }
|
---|
| 797 |
|
---|
| 798 | for (int i = 0; i < NUM_SAMPLES; ++ i)
|
---|
| 799 | samples2[i] = tempSamples[i];
|
---|
| 800 | }
|
---|
| 801 |
|
---|
| 802 |
|
---|
[3199] | 803 | void DeferredRenderer::ComputeSsao(FrameBufferObject *fbo, float tempCohFactor)
|
---|
[2859] | 804 | {
|
---|
[3117] | 805 | GLuint colorsTex, normalsTex, attribsTex;
|
---|
[3015] | 806 |
|
---|
[3133] | 807 | if (0)
|
---|
[3199] | 808 | {
|
---|
[3117] | 809 | colorsTex = fbo->GetColorBuffer(colorBufferIdx)->GetTexture();
|
---|
[3199] | 810 | normalsTex = fbo->GetColorBuffer(1)->GetTexture();
|
---|
| 811 | }
|
---|
[3117] | 812 | else
|
---|
[3199] | 813 | {
|
---|
| 814 | normalsTex = mDownSampleFbo->GetColorBuffer(1)->GetTexture();
|
---|
[3117] | 815 | colorsTex = mDownSampleFbo->GetColorBuffer(0)->GetTexture();
|
---|
[3199] | 816 | }
|
---|
| 817 |
|
---|
[3198] | 818 | attribsTex = fbo->GetColorBuffer(2)->GetTexture();
|
---|
[3117] | 819 |
|
---|
[3341] | 820 |
|
---|
[3325] | 821 | /////////
|
---|
| 822 | //-- flip flop between illumination buffers
|
---|
| 823 |
|
---|
| 824 | GLuint oldSsaoTex = mIllumFbo->GetColorBuffer(2 - mIllumFboIndex)->GetTexture();
|
---|
| 825 |
|
---|
[3006] | 826 | glPushAttrib(GL_VIEWPORT_BIT);
|
---|
[3019] | 827 | glViewport(0, 0, mIllumFbo->GetWidth(), mIllumFbo->GetHeight());
|
---|
[3006] | 828 |
|
---|
[2861] | 829 | // read the second buffer, write to the first buffer
|
---|
[3019] | 830 | mIllumFbo->Bind();
|
---|
[3349] | 831 | glDrawBuffers(2, mrt + mIllumFboIndex);
|
---|
[2868] | 832 |
|
---|
[3095] | 833 | int i = 0;
|
---|
[3034] | 834 |
|
---|
[3095] | 835 | sCgSsaoProgram->SetTexture(i ++, colorsTex);
|
---|
| 836 | sCgSsaoProgram->SetTexture(i ++, normalsTex);
|
---|
[3325] | 837 | sCgSsaoProgram->SetTexture(i ++, oldSsaoTex);
|
---|
[3129] | 838 | sCgSsaoProgram->SetTexture(i ++, noiseTex2D);
|
---|
[3095] | 839 |
|
---|
[3313] | 840 | sCgSsaoProgram->SetValue1f(i ++, (mUseTemporalCoherence && !mRegenerateSamples) ? tempCohFactor : 0);
|
---|
[3035] | 841 |
|
---|
[3325] | 842 |
|
---|
[3324] | 843 | if (/*mUseTemporalCoherence || */mRegenerateSamples)
|
---|
[2875] | 844 | {
|
---|
[2895] | 845 | mRegenerateSamples = false;
|
---|
[2859] | 846 |
|
---|
[2875] | 847 | // q: should we generate new samples or only rotate the old ones?
|
---|
| 848 | // in the first case, the sample patterns look nicer, but the kernel
|
---|
| 849 | // needs longer to converge
|
---|
[3324] | 850 | GenerateSamples(mSamplingMethod);
|
---|
[3326] | 851 |
|
---|
| 852 | if (!sampleTex2D)
|
---|
| 853 | {
|
---|
| 854 | CreateSampleTex(samples2, NUM_PRECOMPUTED_SAMPLES);
|
---|
| 855 | }
|
---|
| 856 | else
|
---|
| 857 | {
|
---|
| 858 | UpdateSampleTex(samples2, NUM_PRECOMPUTED_SAMPLES);
|
---|
| 859 | }
|
---|
| 860 |
|
---|
[3327] | 861 |
|
---|
[3192] | 862 | //if (mSortSamples) { SortSamples(); }
|
---|
[3324] | 863 | //sCgSsaoProgram->SetArray2f(i, (float *)samples2, NUM_SAMPLES);
|
---|
| 864 | //sCgSsaoProgram->SetArray2f(i, (float *)samples2, NUM_PRECOMPUTED_SAMPLES);
|
---|
[2875] | 865 | }
|
---|
[3327] | 866 |
|
---|
| 867 | sCgSsaoProgram->SetTexture(i, sampleTex2D);
|
---|
| 868 |
|
---|
[3095] | 869 | ++ i;
|
---|
[2859] | 870 |
|
---|
[3095] | 871 | for (int j = 0; j < 4; ++ j, ++ i)
|
---|
[3324] | 872 | {
|
---|
[3095] | 873 | sCgSsaoProgram->SetValue3f(i, mCornersView[j].x, mCornersView[j].y, mCornersView[j].z);
|
---|
[3324] | 874 | }
|
---|
[2987] | 875 |
|
---|
[3095] | 876 | sCgSsaoProgram->SetMatrix(i ++, mProjViewMatrix);
|
---|
| 877 | sCgSsaoProgram->SetMatrix(i ++, mOldProjViewMatrix);
|
---|
[3062] | 878 |
|
---|
[3105] | 879 | Vector3 de;
|
---|
| 880 | de.x = mOldEyePos.x - mEyePos.x;
|
---|
| 881 | de.y = mOldEyePos.y - mEyePos.y;
|
---|
| 882 | de.z = mOldEyePos.z - mEyePos.z;
|
---|
[3035] | 883 |
|
---|
[3095] | 884 | sCgSsaoProgram->SetValue3f(i ++, de.x, de.y, de.z);
|
---|
[3093] | 885 |
|
---|
[3095] | 886 | for (int j = 0; j < 4; ++ j, ++ i)
|
---|
[3212] | 887 | {
|
---|
[3095] | 888 | sCgSsaoProgram->SetValue3f(i, mOldCornersView[j].x, mOldCornersView[j].y, mOldCornersView[j].z);
|
---|
[3212] | 889 | }
|
---|
[3085] | 890 |
|
---|
[3110] | 891 | sCgSsaoProgram->SetTexture(i ++, attribsTex);
|
---|
[3212] | 892 | sCgSsaoProgram->SetValue1f(i ++, mKernelRadius);
|
---|
[3227] | 893 | sCgSsaoProgram->SetValue1f(i ++, mSampleIntensity * mKernelRadius);
|
---|
[3110] | 894 |
|
---|
[3026] | 895 | DrawQuad(sCgSsaoProgram);
|
---|
[3006] | 896 | glPopAttrib();
|
---|
[2859] | 897 |
|
---|
| 898 | PrintGLerror("ssao first pass");
|
---|
| 899 | }
|
---|
| 900 |
|
---|
| 901 |
|
---|
[2865] | 902 | static void SetVertex(float x, float y, float x_offs, float y_offs)
|
---|
| 903 | {
|
---|
| 904 | glMultiTexCoord2fARB(GL_TEXTURE0_ARB, x, y); // center
|
---|
| 905 | glMultiTexCoord2fARB(GL_TEXTURE1_ARB, x - x_offs, y + y_offs); // left top
|
---|
| 906 | glMultiTexCoord2fARB(GL_TEXTURE2_ARB, x + x_offs, y - y_offs); // right bottom
|
---|
| 907 | glMultiTexCoord2fARB(GL_TEXTURE3_ARB, x + x_offs, y + y_offs); // right top
|
---|
| 908 | glMultiTexCoord2fARB(GL_TEXTURE4_ARB, x - x_offs, y - y_offs); // left bottom
|
---|
| 909 |
|
---|
| 910 | glMultiTexCoord4fARB(GL_TEXTURE5_ARB, x - x_offs, y, x + x_offs, y); // left right
|
---|
| 911 | glMultiTexCoord4fARB(GL_TEXTURE6_ARB, x, y + y_offs, x, y - y_offs); // top bottom
|
---|
| 912 |
|
---|
[3089] | 913 | //glVertex3f(x - 0.5f, y - 0.5f, -0.5f);
|
---|
| 914 | glVertex2f(x, y);
|
---|
[2865] | 915 | }
|
---|
| 916 |
|
---|
| 917 |
|
---|
[3219] | 918 | void DeferredRenderer::AntiAliasing(FrameBufferObject *fbo,
|
---|
| 919 | DirectionalLight *light,
|
---|
| 920 | bool displayFrame)
|
---|
[2865] | 921 | {
|
---|
[2968] | 922 | ColorBufferObject *colorBuffer = fbo->GetColorBuffer(colorBufferIdx);
|
---|
| 923 | GLuint colorsTex = colorBuffer->GetTexture();
|
---|
[3136] | 924 | GLuint normalsTex = fbo->GetColorBuffer(1)->GetTexture();
|
---|
[3007] | 925 |
|
---|
[3132] | 926 | // read the second buffer, write to the first buffer
|
---|
[3219] | 927 | if (!displayFrame)
|
---|
[3327] | 928 | {
|
---|
[3219] | 929 | FlipFbos(fbo);
|
---|
[3327] | 930 | }
|
---|
[3219] | 931 | else
|
---|
[3327] | 932 | {
|
---|
[3219] | 933 | // end of the pipeline => just draw image to screen
|
---|
| 934 | FrameBufferObject::Release();
|
---|
[3327] | 935 | }
|
---|
[3132] | 936 |
|
---|
[3136] | 937 | // the neighbouring texels
|
---|
[3349] | 938 | float xOffs = 1.0f / fbo->GetWidth();
|
---|
| 939 | float yOffs = 1.0f / fbo->GetHeight();
|
---|
[3136] | 940 |
|
---|
[3034] | 941 | sCgAntiAliasingProgram->SetTexture(0, colorsTex);
|
---|
| 942 | sCgAntiAliasingProgram->SetTexture(1, normalsTex);
|
---|
[2865] | 943 |
|
---|
[3136] | 944 | float offsets[16];
|
---|
| 945 | int i = 0;
|
---|
[2868] | 946 |
|
---|
[3136] | 947 | offsets[i] = -xOffs; offsets[i + 1] = yOffs; i += 2; // left top
|
---|
| 948 | offsets[i] = xOffs; offsets[i + 1] = -yOffs; i += 2; // right bottom
|
---|
| 949 | offsets[i] = xOffs; offsets[i + 1] = yOffs; i += 2; // right top
|
---|
| 950 | offsets[i] = -xOffs; offsets[i + 1] = -yOffs; i += 2; // left bottom
|
---|
| 951 | offsets[i] = -xOffs; offsets[i + 1] = .0f; i += 2; // left
|
---|
| 952 | offsets[i] = xOffs; offsets[i + 1] = .0f; i += 2; // right
|
---|
| 953 | offsets[i] = .0f; offsets[i + 1] = yOffs; i += 2; // top
|
---|
| 954 | offsets[i] = .0f; offsets[i + 1] = -yOffs; i += 2; // bottom
|
---|
[2865] | 955 |
|
---|
[3136] | 956 | sCgAntiAliasingProgram->SetArray2f(2, offsets, 8);
|
---|
[2865] | 957 |
|
---|
[3136] | 958 | DrawQuad(sCgAntiAliasingProgram);
|
---|
[2865] | 959 |
|
---|
[2867] | 960 | PrintGLerror("antialiasing");
|
---|
[2865] | 961 | }
|
---|
| 962 |
|
---|
| 963 |
|
---|
[2952] | 964 | void DeferredRenderer::FirstPass(FrameBufferObject *fbo, DirectionalLight *light)
|
---|
[2868] | 965 | {
|
---|
[2973] | 966 | GLuint colorsTex = fbo->GetColorBuffer(colorBufferIdx)->GetTexture();
|
---|
[3009] | 967 | GLuint normalsTex = fbo->GetColorBuffer(1)->GetTexture();
|
---|
[3350] | 968 | GLuint aoTex = mTempFbo->GetColorBuffer(1)->GetTexture();
|
---|
[2868] | 969 |
|
---|
[3132] | 970 | FlipFbos(fbo);
|
---|
[2868] | 971 |
|
---|
[3026] | 972 | const Vector3 lightDir = -light->GetDirection();
|
---|
[2868] | 973 |
|
---|
[3034] | 974 | sCgDeferredProgram->SetTexture(0, colorsTex);
|
---|
| 975 | sCgDeferredProgram->SetTexture(1, normalsTex);
|
---|
| 976 | sCgDeferredProgram->SetValue3f(2, lightDir.x, lightDir.y, lightDir.z);
|
---|
[3350] | 977 | sCgDeferredProgram->SetTexture(3, aoTex);
|
---|
| 978 |
|
---|
[3026] | 979 | DrawQuad(sCgDeferredProgram);
|
---|
[2952] | 980 |
|
---|
[2868] | 981 | PrintGLerror("deferred shading");
|
---|
| 982 | }
|
---|
| 983 |
|
---|
[2869] | 984 |
|
---|
[2896] | 985 | void DeferredRenderer::ComputeGlobIllum(FrameBufferObject *fbo,
|
---|
[3085] | 986 | float tempCohFactor)
|
---|
[2869] | 987 | {
|
---|
[3016] | 988 | #if 0
|
---|
| 989 | GLuint colorsTex = fbo->GetColorBuffer(colorBufferIdx)->GetTexture();
|
---|
| 990 | GLuint normalsTex = fbo->GetColorBuffer(1)->GetTexture();
|
---|
| 991 | #else
|
---|
[3003] | 992 | GLuint colorsTex = mDownSampleFbo->GetColorBuffer(0)->GetTexture();
|
---|
[3009] | 993 | GLuint normalsTex = mDownSampleFbo->GetColorBuffer(1)->GetTexture();
|
---|
[3016] | 994 | #endif
|
---|
[2869] | 995 |
|
---|
[3006] | 996 | glPushAttrib(GL_VIEWPORT_BIT);
|
---|
[3019] | 997 | glViewport(0, 0, mIllumFbo->GetWidth(), mIllumFbo->GetHeight());
|
---|
[2869] | 998 |
|
---|
[2873] | 999 | // read the second buffer, write to the first buffer
|
---|
[3019] | 1000 | mIllumFbo->Bind();
|
---|
| 1001 | glDrawBuffers(2, mrt + mIllumFboIndex);
|
---|
[2873] | 1002 |
|
---|
[3326] | 1003 | // bind the old buffers for temporal coherence
|
---|
[3019] | 1004 | GLuint oldSsaoTex = mIllumFbo->GetColorBuffer(2 - mIllumFboIndex)->GetTexture();
|
---|
| 1005 | GLuint oldIllumTex = mIllumFbo->GetColorBuffer(2 - mIllumFboIndex + 1)->GetTexture();
|
---|
[2869] | 1006 |
|
---|
[3160] | 1007 | int i = 0;
|
---|
[2869] | 1008 |
|
---|
[3160] | 1009 | sCgGiProgram->SetTexture(i ++, colorsTex);
|
---|
| 1010 | sCgGiProgram->SetTexture(i ++, normalsTex);
|
---|
| 1011 | sCgGiProgram->SetTexture(i ++, noiseTex2D);
|
---|
| 1012 | sCgGiProgram->SetTexture(i ++, oldSsaoTex);
|
---|
| 1013 | sCgGiProgram->SetTexture(i ++, oldIllumTex);
|
---|
| 1014 |
|
---|
| 1015 | sCgGiProgram->SetValue1f(i ++,
|
---|
[3026] | 1016 | (mUseTemporalCoherence && !mRegenerateSamples) ? tempCohFactor : 0);
|
---|
[2869] | 1017 |
|
---|
[2895] | 1018 | if (mUseTemporalCoherence || mRegenerateSamples)
|
---|
[2875] | 1019 | {
|
---|
[2895] | 1020 | mRegenerateSamples = false;
|
---|
[2873] | 1021 |
|
---|
[2875] | 1022 | // q: should we generate new samples or only rotate the old ones?
|
---|
| 1023 | // in the first case, the sample patterns look nicer, but the kernel
|
---|
| 1024 | // needs longer to converge
|
---|
[2895] | 1025 | GenerateSamples(mSamplingMethod);
|
---|
[2903] | 1026 |
|
---|
[3160] | 1027 | sCgGiProgram->SetArray2f(i ++, (float *)samples2, NUM_SAMPLES);
|
---|
[2875] | 1028 | }
|
---|
| 1029 |
|
---|
[3085] | 1030 | Vector3 bl = mCornersView[0];
|
---|
| 1031 | Vector3 br = mCornersView[1];
|
---|
| 1032 | Vector3 tl = mCornersView[2];
|
---|
| 1033 | Vector3 tr = mCornersView[3];
|
---|
[2895] | 1034 |
|
---|
[3160] | 1035 | sCgGiProgram->SetValue3f(i ++, bl.x, bl.y, bl.z);
|
---|
| 1036 | sCgGiProgram->SetValue3f(i ++, br.x, br.y, br.z);
|
---|
| 1037 | sCgGiProgram->SetValue3f(i ++, tl.x, tl.y, tl.z);
|
---|
| 1038 | sCgGiProgram->SetValue3f(i ++, tr.x, tr.y, tr.z);
|
---|
[2873] | 1039 |
|
---|
[3160] | 1040 | sCgGiProgram->SetMatrix(i ++, mOldProjViewMatrix);
|
---|
| 1041 | sCgGiProgram->SetMatrix(i ++, mProjViewMatrix);
|
---|
[3035] | 1042 |
|
---|
| 1043 |
|
---|
[3026] | 1044 | DrawQuad(sCgGiProgram);
|
---|
[2990] | 1045 |
|
---|
[3006] | 1046 | glPopAttrib();
|
---|
| 1047 |
|
---|
[2873] | 1048 | PrintGLerror("globillum first pass");
|
---|
[2869] | 1049 | }
|
---|
| 1050 |
|
---|
| 1051 |
|
---|
[2896] | 1052 | void DeferredRenderer::CombineIllum(FrameBufferObject *fbo)
|
---|
[2880] | 1053 | {
|
---|
[2973] | 1054 | GLuint colorsTex = fbo->GetColorBuffer(colorBufferIdx)->GetTexture();
|
---|
[2884] | 1055 |
|
---|
[3019] | 1056 | GLuint ssaoTex = mIllumFbo->GetColorBuffer(mIllumFboIndex)->GetTexture();
|
---|
| 1057 | GLuint illumTex = mIllumFbo->GetColorBuffer(mIllumFboIndex + 1)->GetTexture();
|
---|
[2880] | 1058 |
|
---|
[3132] | 1059 | FlipFbos(fbo);
|
---|
[2891] | 1060 |
|
---|
[3036] | 1061 | sCgCombineIllumProgram->SetTexture(0, colorsTex);
|
---|
| 1062 | sCgCombineIllumProgram->SetTexture(1, ssaoTex);
|
---|
| 1063 | sCgCombineIllumProgram->SetTexture(2, illumTex);
|
---|
[2880] | 1064 |
|
---|
[3026] | 1065 | DrawQuad(sCgCombineIllumProgram);
|
---|
[2880] | 1066 |
|
---|
| 1067 | PrintGLerror("combine");
|
---|
| 1068 | }
|
---|
| 1069 |
|
---|
| 1070 |
|
---|
[3301] | 1071 | void DeferredRenderer::FilterSsao(FrameBufferObject *fbo)
|
---|
[2880] | 1072 | {
|
---|
[2973] | 1073 | GLuint colorsTex = fbo->GetColorBuffer(colorBufferIdx)->GetTexture();
|
---|
[3103] | 1074 | GLuint normalsTex = fbo->GetColorBuffer(1)->GetTexture();
|
---|
[3144] | 1075 | GLuint ssaoTex = mIllumFbo->GetColorBuffer(mIllumFboIndex)->GetTexture();
|
---|
[3132] | 1076 |
|
---|
[3305] | 1077 | mTempFbo->Bind();
|
---|
| 1078 | glDrawBuffers(1, mrt);
|
---|
[3301] | 1079 |
|
---|
[3104] | 1080 | int i = 0;
|
---|
[3148] | 1081 |
|
---|
[3301] | 1082 | sCgFilterSsaoProgram->SetTexture(i ++, colorsTex);
|
---|
| 1083 | sCgFilterSsaoProgram->SetTexture(i ++, ssaoTex);
|
---|
[3017] | 1084 |
|
---|
[3163] | 1085 | for (int j = 0; j < 4; ++ j, ++ i)
|
---|
[3296] | 1086 | {
|
---|
[3301] | 1087 | sCgFilterSsaoProgram->SetValue3f(i, mCornersView[j].x, mCornersView[j].y, mCornersView[j].z);
|
---|
[3296] | 1088 | }
|
---|
[3134] | 1089 |
|
---|
[3305] | 1090 | sCgFilterSsaoProgram->SetValue2f(i ++, (float)mWidth, (float)mHeight);
|
---|
[3319] | 1091 | sCgFilterSsaoProgram->SetValue1f(i ++, mMaxConvergence);
|
---|
| 1092 | sCgFilterSsaoProgram->SetValue1f(i ++, mSpatialWeight);
|
---|
[3300] | 1093 |
|
---|
[3301] | 1094 | DrawQuad(sCgFilterSsaoProgram);
|
---|
[3340] | 1095 | PrintGLerror("filter ssao");
|
---|
[2880] | 1096 | }
|
---|
| 1097 |
|
---|
| 1098 |
|
---|
[3301] | 1099 | void DeferredRenderer::CombineSsao(FrameBufferObject *fbo)
|
---|
[3296] | 1100 | {
|
---|
| 1101 | GLuint colorsTex = fbo->GetColorBuffer(colorBufferIdx)->GetTexture();
|
---|
| 1102 | GLuint normalsTex = fbo->GetColorBuffer(1)->GetTexture();
|
---|
[3305] | 1103 | GLuint ssaoTex = mTempFbo->GetColorBuffer(0)->GetTexture();
|
---|
[3296] | 1104 |
|
---|
[3350] | 1105 | mTempFbo->Bind();
|
---|
| 1106 | glDrawBuffers(1, mrt + 1);
|
---|
| 1107 | //FlipFbos(fbo);
|
---|
[3296] | 1108 |
|
---|
| 1109 | int i = 0;
|
---|
| 1110 |
|
---|
| 1111 | sCgCombineSsaoProgram->SetTexture(i ++, colorsTex);
|
---|
| 1112 | sCgCombineSsaoProgram->SetTexture(i ++, ssaoTex);
|
---|
| 1113 |
|
---|
| 1114 | for (int j = 0; j < 4; ++ j, ++ i)
|
---|
| 1115 | {
|
---|
| 1116 | sCgCombineSsaoProgram->SetValue3f(i, mCornersView[j].x, mCornersView[j].y, mCornersView[j].z);
|
---|
| 1117 | }
|
---|
| 1118 |
|
---|
[3305] | 1119 | sCgCombineSsaoProgram->SetValue2f(i ++, mWidth, mHeight);
|
---|
[3319] | 1120 | sCgCombineSsaoProgram->SetValue1f(i ++, mMaxConvergence);
|
---|
| 1121 | sCgCombineSsaoProgram->SetValue1f(i ++, mSpatialWeight);
|
---|
[3296] | 1122 |
|
---|
| 1123 | DrawQuad(sCgCombineSsaoProgram);
|
---|
| 1124 |
|
---|
| 1125 | PrintGLerror("combine ssao");
|
---|
| 1126 | }
|
---|
| 1127 |
|
---|
| 1128 |
|
---|
[2952] | 1129 | void DeferredRenderer::FirstPassShadow(FrameBufferObject *fbo,
|
---|
| 1130 | DirectionalLight *light,
|
---|
| 1131 | ShadowMap *shadowMap)
|
---|
[2895] | 1132 | {
|
---|
[2973] | 1133 | GLuint colorsTex = fbo->GetColorBuffer(colorBufferIdx)->GetTexture();
|
---|
[3009] | 1134 | GLuint normalsTex = fbo->GetColorBuffer(1)->GetTexture();
|
---|
[2973] | 1135 |
|
---|
[2928] | 1136 | GLuint shadowTex = shadowMap->GetDepthTexture();
|
---|
[2895] | 1137 |
|
---|
| 1138 | Matrix4x4 shadowMatrix;
|
---|
| 1139 | shadowMap->GetTextureMatrix(shadowMatrix);
|
---|
| 1140 |
|
---|
| 1141 |
|
---|
[3132] | 1142 | FlipFbos(fbo);
|
---|
| 1143 |
|
---|
[3035] | 1144 | sCgDeferredShadowProgram->SetTexture(0, colorsTex);
|
---|
| 1145 | sCgDeferredShadowProgram->SetTexture(1, normalsTex);
|
---|
| 1146 | sCgDeferredShadowProgram->SetTexture(2, shadowTex);
|
---|
[3129] | 1147 | sCgDeferredShadowProgram->SetTexture(3, noiseTex2D);
|
---|
[3035] | 1148 | sCgDeferredShadowProgram->SetMatrix(4, shadowMatrix);
|
---|
| 1149 | sCgDeferredShadowProgram->SetValue1f(5, 2.0f / shadowMap->GetSize());
|
---|
[3027] | 1150 |
|
---|
[3026] | 1151 | const Vector3 lightDir = -light->GetDirection();
|
---|
[3035] | 1152 | sCgDeferredShadowProgram->SetValue3f(6, lightDir.x, lightDir.y, lightDir.z);
|
---|
[3085] | 1153 | sCgDeferredShadowProgram->SetValue3f(7, mEyePos.x, mEyePos.y, mEyePos.z);
|
---|
[2952] | 1154 |
|
---|
[3026] | 1155 | DrawQuad(sCgDeferredShadowProgram);
|
---|
[2895] | 1156 |
|
---|
| 1157 | PrintGLerror("deferred shading + shadows");
|
---|
| 1158 | }
|
---|
| 1159 |
|
---|
| 1160 |
|
---|
[2973] | 1161 | void DeferredRenderer::ComputeToneParameters(FrameBufferObject *fbo,
|
---|
| 1162 | DirectionalLight *light,
|
---|
| 1163 | float &imageKey,
|
---|
| 1164 | float &whiteLum,
|
---|
| 1165 | float &middleGrey)
|
---|
[2972] | 1166 | {
|
---|
[2975] | 1167 | // hack: estimate value where sky burns out
|
---|
[3010] | 1168 | whiteLum = log(WHITE_LUMINANCE);
|
---|
[2973] | 1169 |
|
---|
[2975] | 1170 | ////////////////////
|
---|
| 1171 | //-- linear interpolate brightness key depending on the current sun position
|
---|
[2973] | 1172 |
|
---|
| 1173 | const float minKey = 0.09f;
|
---|
[3020] | 1174 | const float maxKey = 0.36f;
|
---|
[2973] | 1175 |
|
---|
| 1176 | const float lightIntensity = DotProd(-light->GetDirection(), Vector3::UNIT_Z());
|
---|
| 1177 | middleGrey = lightIntensity * maxKey + (1.0f - lightIntensity) * minKey;
|
---|
[2991] | 1178 |
|
---|
[2993] | 1179 |
|
---|
[2991] | 1180 | //////////
|
---|
| 1181 | //-- compute avg loglum
|
---|
| 1182 |
|
---|
| 1183 | ColorBufferObject *colorBuffer = fbo->GetColorBuffer(colorBufferIdx);
|
---|
[2992] | 1184 | GLuint colorsTex = colorBuffer->GetTexture();
|
---|
[2991] | 1185 |
|
---|
[3132] | 1186 | FlipFbos(fbo);
|
---|
[2991] | 1187 |
|
---|
[3035] | 1188 | sCgLogLumProgram->SetTexture(0, colorsTex);
|
---|
[3026] | 1189 | DrawQuad(sCgLogLumProgram);
|
---|
[2991] | 1190 |
|
---|
| 1191 | PrintGLerror("ToneMapParams");
|
---|
| 1192 |
|
---|
| 1193 |
|
---|
| 1194 | ///////////////////
|
---|
| 1195 | //-- compute avg loglum in scene using mipmapping
|
---|
| 1196 |
|
---|
[3008] | 1197 | glBindTexture(GL_TEXTURE_2D, fbo->GetColorBuffer(colorBufferIdx)->GetTexture());
|
---|
| 1198 | glGenerateMipmapEXT(GL_TEXTURE_2D);
|
---|
[2972] | 1199 | }
|
---|
| 1200 |
|
---|
| 1201 |
|
---|
[3003] | 1202 | static void ExportData(float *data, int w, int h)
|
---|
| 1203 | {
|
---|
| 1204 | startil();
|
---|
| 1205 |
|
---|
| 1206 | cout << "w: " << w << " h: " << h << endl;
|
---|
| 1207 | ILstring filename = ILstring("downsample2.jpg");
|
---|
| 1208 | ilRegisterType(IL_FLOAT);
|
---|
| 1209 |
|
---|
| 1210 | const int depth = 1;
|
---|
| 1211 | const int bpp = 4;
|
---|
| 1212 |
|
---|
| 1213 | if (!ilTexImage(w, h, depth, bpp, IL_RGBA, IL_FLOAT, data))
|
---|
| 1214 | {
|
---|
| 1215 | cerr << "IL error " << ilGetError() << endl;
|
---|
| 1216 | stopil();
|
---|
| 1217 | return;
|
---|
| 1218 | }
|
---|
| 1219 |
|
---|
| 1220 | if (!ilSaveImage(filename))
|
---|
| 1221 | {
|
---|
| 1222 | cerr << "TGA write error " << ilGetError() << endl;
|
---|
| 1223 | }
|
---|
| 1224 |
|
---|
| 1225 | stopil();
|
---|
| 1226 | }
|
---|
| 1227 |
|
---|
| 1228 |
|
---|
[3155] | 1229 | void DeferredRenderer::PrepareSsao(FrameBufferObject *fbo)
|
---|
| 1230 | {
|
---|
[3198] | 1231 | GLuint colorsTex = fbo->GetColorBuffer(colorBufferIdx)->GetTexture();
|
---|
[3199] | 1232 | GLuint normalsTex = fbo->GetColorBuffer(1)->GetTexture();
|
---|
[3198] | 1233 | GLuint diffVals = fbo->GetColorBuffer(2)->GetTexture();
|
---|
[3325] | 1234 |
|
---|
[3155] | 1235 | // flip flop between illumination buffers
|
---|
[3198] | 1236 | GLuint oldTex = mIllumFbo->GetColorBuffer(2 - mIllumFboIndex)->GetTexture();
|
---|
[3326] | 1237 | GLuint myTex = mIllumFbo->GetColorBuffer(2 - mIllumFboIndex + 1)->GetTexture();
|
---|
[3155] | 1238 |
|
---|
| 1239 | int i = 0;
|
---|
| 1240 |
|
---|
| 1241 | sCgPrepareSsaoProgram->SetTexture(i ++, colorsTex);
|
---|
[3199] | 1242 | sCgPrepareSsaoProgram->SetTexture(i ++, normalsTex);
|
---|
[3167] | 1243 | sCgPrepareSsaoProgram->SetTexture(i ++, diffVals);
|
---|
[3155] | 1244 | sCgPrepareSsaoProgram->SetTexture(i ++, oldTex);
|
---|
| 1245 |
|
---|
| 1246 | Vector3 de;
|
---|
| 1247 | de.x = mOldEyePos.x - mEyePos.x;
|
---|
| 1248 | de.y = mOldEyePos.y - mEyePos.y;
|
---|
| 1249 | de.z = mOldEyePos.z - mEyePos.z;
|
---|
| 1250 |
|
---|
| 1251 | sCgPrepareSsaoProgram->SetValue3f(i ++, de.x, de.y, de.z);
|
---|
| 1252 |
|
---|
[3156] | 1253 | sCgPrepareSsaoProgram->SetMatrix(i ++, mProjViewMatrix);
|
---|
| 1254 | sCgPrepareSsaoProgram->SetMatrix(i ++, mOldProjViewMatrix);
|
---|
| 1255 |
|
---|
[3326] | 1256 |
|
---|
[3156] | 1257 | for (int j = 0; j < 4; ++ j, ++ i)
|
---|
[3325] | 1258 | {
|
---|
[3156] | 1259 | sCgPrepareSsaoProgram->SetValue3f(i, mOldCornersView[j].x, mOldCornersView[j].y, mOldCornersView[j].z);
|
---|
[3325] | 1260 | }
|
---|
[3156] | 1261 |
|
---|
[3326] | 1262 | sCgPrepareSsaoProgram->SetTexture(i ++, myTex);
|
---|
| 1263 |
|
---|
[3155] | 1264 | glPushAttrib(GL_VIEWPORT_BIT);
|
---|
| 1265 | glViewport(0, 0, mDownSampleFbo->GetWidth(), mDownSampleFbo->GetHeight());
|
---|
| 1266 |
|
---|
| 1267 | mDownSampleFbo->Bind();
|
---|
| 1268 |
|
---|
[3212] | 1269 | // prepare downsampled depth and normal texture for ssao
|
---|
[3199] | 1270 | glDrawBuffers(2, mrt);
|
---|
[3155] | 1271 |
|
---|
| 1272 | DrawQuad(sCgPrepareSsaoProgram);
|
---|
| 1273 |
|
---|
| 1274 | glPopAttrib();
|
---|
| 1275 | PrintGLerror("prepareSsao");
|
---|
| 1276 | }
|
---|
| 1277 |
|
---|
| 1278 |
|
---|
[3103] | 1279 | void DeferredRenderer::DownSample(FrameBufferObject *fbo,
|
---|
| 1280 | int bufferIdx,
|
---|
[3006] | 1281 | FrameBufferObject *downSampleFbo,
|
---|
[3137] | 1282 | int downSampleBufferIdx,
|
---|
| 1283 | ShaderProgram *program)
|
---|
[2972] | 1284 | {
|
---|
[3137] | 1285 | ColorBufferObject *buffer = fbo->GetColorBuffer(bufferIdx);
|
---|
| 1286 | GLuint tex = buffer->GetTexture();
|
---|
[3006] | 1287 |
|
---|
| 1288 | glPushAttrib(GL_VIEWPORT_BIT);
|
---|
| 1289 | glViewport(0, 0, downSampleFbo->GetWidth(), downSampleFbo->GetHeight());
|
---|
[2972] | 1290 |
|
---|
[3137] | 1291 | downSampleFbo->Bind();
|
---|
[2994] | 1292 |
|
---|
[3137] | 1293 | program->SetTexture(0, tex);
|
---|
[3006] | 1294 | glDrawBuffers(1, mrt + downSampleBufferIdx);
|
---|
[2994] | 1295 |
|
---|
[3137] | 1296 | DrawQuad(program);
|
---|
[3005] | 1297 |
|
---|
[3006] | 1298 | glPopAttrib();
|
---|
[3005] | 1299 | PrintGLerror("downsample");
|
---|
[2972] | 1300 | }
|
---|
| 1301 |
|
---|
| 1302 |
|
---|
[2973] | 1303 | void DeferredRenderer::ToneMap(FrameBufferObject *fbo,
|
---|
| 1304 | float imageKey,
|
---|
| 1305 | float whiteLum,
|
---|
| 1306 | float middleGrey)
|
---|
[2972] | 1307 | {
|
---|
| 1308 | ColorBufferObject *colorBuffer = fbo->GetColorBuffer(colorBufferIdx);
|
---|
[2994] | 1309 | GLuint colorsTex = colorBuffer->GetTexture();
|
---|
[3326] | 1310 |
|
---|
[2972] | 1311 |
|
---|
[3132] | 1312 | FlipFbos(fbo);
|
---|
[3007] | 1313 |
|
---|
[3035] | 1314 | sCgToneProgram->SetTexture(0, colorsTex);
|
---|
| 1315 | sCgToneProgram->SetValue1f(1, imageKey);
|
---|
| 1316 | sCgToneProgram->SetValue1f(2, whiteLum);
|
---|
| 1317 | sCgToneProgram->SetValue1f(3, middleGrey);
|
---|
[3007] | 1318 |
|
---|
[3026] | 1319 | DrawQuad(sCgToneProgram);
|
---|
[2972] | 1320 |
|
---|
[2973] | 1321 | PrintGLerror("ToneMap");
|
---|
[2972] | 1322 | }
|
---|
| 1323 |
|
---|
| 1324 |
|
---|
[3132] | 1325 | void DeferredRenderer::Output(FrameBufferObject *fbo)
|
---|
| 1326 | {
|
---|
| 1327 | glPushAttrib(GL_VIEWPORT_BIT);
|
---|
| 1328 | glViewport(0, 0, fbo->GetWidth(), fbo->GetHeight());
|
---|
| 1329 |
|
---|
| 1330 | ColorBufferObject *colorBuffer = fbo->GetColorBuffer(colorBufferIdx);
|
---|
| 1331 | GLuint colorsTex = colorBuffer->GetTexture();
|
---|
| 1332 |
|
---|
| 1333 | sCgDownSampleProgram->SetTexture(0, colorsTex);
|
---|
| 1334 |
|
---|
| 1335 | FrameBufferObject::Release();
|
---|
| 1336 | DrawQuad(sCgDownSampleProgram);
|
---|
| 1337 |
|
---|
[3326] | 1338 | PrintGLerror("Output");
|
---|
[3132] | 1339 | }
|
---|
| 1340 |
|
---|
| 1341 |
|
---|
[3085] | 1342 | void DeferredRenderer::InitFrame()
|
---|
| 1343 | {
|
---|
[3095] | 1344 | for (int i = 0; i < 4; ++ i)
|
---|
[3326] | 1345 | {
|
---|
[3095] | 1346 | mOldCornersView[i] = mCornersView[i];
|
---|
[3326] | 1347 | }
|
---|
[3095] | 1348 |
|
---|
[3085] | 1349 | mOldProjViewMatrix = mProjViewMatrix;
|
---|
[3095] | 1350 | mOldEyePos = mEyePos;
|
---|
[3106] | 1351 | mEyePos = mCamera->GetPosition();
|
---|
[3081] | 1352 |
|
---|
[3104] | 1353 | // hack: temporarily change far to improve precision
|
---|
| 1354 | const float oldFar = mCamera->GetFar();
|
---|
[3106] | 1355 | const float oldNear = mCamera->GetNear();
|
---|
[3132] | 1356 |
|
---|
[3104] | 1357 |
|
---|
[3106] | 1358 | Matrix4x4 matViewing, matProjection;
|
---|
[3104] | 1359 |
|
---|
[3106] | 1360 |
|
---|
| 1361 | ///////////////////
|
---|
| 1362 |
|
---|
[3213] | 1363 | // use view orientation as we assume that the eye point is always in the center
|
---|
| 1364 | // of our coordinate system, this way we have the highest precision near the eye point
|
---|
[3093] | 1365 | mCamera->GetViewOrientationMatrix(matViewing);
|
---|
[3085] | 1366 | mCamera->GetProjectionMatrix(matProjection);
|
---|
| 1367 |
|
---|
| 1368 | mProjViewMatrix = matViewing * matProjection;
|
---|
[3095] | 1369 | ComputeViewVectors(mCamera, mCornersView[0], mCornersView[1], mCornersView[2], mCornersView[3]);
|
---|
[3106] | 1370 |
|
---|
[3085] | 1371 |
|
---|
[3095] | 1372 | // switch roles of old and new fbo
|
---|
| 1373 | // the algorihm uses two input fbos, where the one
|
---|
| 1374 | // contais the color buffer from the last frame,
|
---|
| 1375 | // the other one will be written
|
---|
[3085] | 1376 |
|
---|
[3095] | 1377 | mIllumFboIndex = 2 - mIllumFboIndex;
|
---|
| 1378 |
|
---|
| 1379 | // enable fragment shading
|
---|
| 1380 | ShaderManager::GetSingleton()->EnableFragmentProfile();
|
---|
| 1381 |
|
---|
| 1382 | glDisable(GL_ALPHA_TEST);
|
---|
| 1383 | glDisable(GL_TEXTURE_2D);
|
---|
| 1384 | glDisable(GL_LIGHTING);
|
---|
| 1385 | glDisable(GL_BLEND);
|
---|
| 1386 | glDisable(GL_DEPTH_TEST);
|
---|
| 1387 |
|
---|
| 1388 | glPolygonMode(GL_FRONT, GL_FILL);
|
---|
| 1389 |
|
---|
| 1390 | glMatrixMode(GL_PROJECTION);
|
---|
| 1391 | glPushMatrix();
|
---|
| 1392 | glLoadIdentity();
|
---|
| 1393 |
|
---|
| 1394 | gluOrtho2D(0, 1, 0, 1);
|
---|
| 1395 |
|
---|
[3349] | 1396 |
|
---|
[3095] | 1397 | glMatrixMode(GL_MODELVIEW);
|
---|
| 1398 | glPushMatrix();
|
---|
| 1399 | glLoadIdentity();
|
---|
[3349] | 1400 |
|
---|
[3095] | 1401 |
|
---|
| 1402 | glPushAttrib(GL_VIEWPORT_BIT);
|
---|
| 1403 | glViewport(0, 0, mWidth, mHeight);
|
---|
[3128] | 1404 |
|
---|
| 1405 | // revert to old far and near plane
|
---|
[3104] | 1406 | mCamera->SetFar(oldFar);
|
---|
[3106] | 1407 | mCamera->SetNear(oldNear);
|
---|
[3085] | 1408 | }
|
---|
| 1409 |
|
---|
[3212] | 1410 |
|
---|
[3213] | 1411 | void DeferredRenderer::LenseFlare(FrameBufferObject *fbo,
|
---|
[3215] | 1412 | DirectionalLight *light
|
---|
[3213] | 1413 | )
|
---|
[3212] | 1414 | {
|
---|
[3242] | 1415 | // light source visible?
|
---|
[3215] | 1416 | if (!mSunVisiblePixels) return;
|
---|
| 1417 |
|
---|
[3213] | 1418 | // the sun is a large distance in the reverse light direction
|
---|
| 1419 | // => extrapolate light pos
|
---|
| 1420 | const Vector3 lightPos = light->GetDirection() * -1e3f;
|
---|
| 1421 |
|
---|
[3214] | 1422 | float w;
|
---|
| 1423 | Vector3 projLightPos = mProjViewMatrix.Transform(w, lightPos, 1.0f);
|
---|
| 1424 | projLightPos /= w;
|
---|
| 1425 | projLightPos = projLightPos * 0.5f + Vector3(0.5f);
|
---|
[3213] | 1426 |
|
---|
| 1427 | // vector to light from screen center in texture space
|
---|
| 1428 | Vector3 vectorToLight = projLightPos - Vector3(0.5f);
|
---|
| 1429 | vectorToLight.z = .0f;
|
---|
| 1430 |
|
---|
| 1431 | const float distanceToLight = Magnitude(vectorToLight);
|
---|
| 1432 | vectorToLight /= distanceToLight;
|
---|
[3214] | 1433 | //cout << "dist " << distanceToLight << " v " << vectorToLight << endl;
|
---|
[3213] | 1434 |
|
---|
| 1435 |
|
---|
[3212] | 1436 | ColorBufferObject *colorBuffer = fbo->GetColorBuffer(colorBufferIdx);
|
---|
[3213] | 1437 | GLuint colorsTex = colorBuffer->GetTexture();
|
---|
| 1438 |
|
---|
[3212] | 1439 | FlipFbos(fbo);
|
---|
| 1440 |
|
---|
[3213] | 1441 | int i = 0;
|
---|
[3212] | 1442 |
|
---|
[3213] | 1443 | sCgLenseFlareProgram->SetTexture(i ++, colorsTex);
|
---|
| 1444 | sCgLenseFlareProgram->SetTexture(i ++, sHaloTex[0]->GetId());
|
---|
| 1445 | sCgLenseFlareProgram->SetTexture(i ++, sHaloTex[1]->GetId());
|
---|
| 1446 | sCgLenseFlareProgram->SetTexture(i ++, sHaloTex[2]->GetId());
|
---|
| 1447 | sCgLenseFlareProgram->SetTexture(i ++, sHaloTex[3]->GetId());
|
---|
[3214] | 1448 | sCgLenseFlareProgram->SetTexture(i ++, sHaloTex[4]->GetId());
|
---|
[3213] | 1449 | sCgLenseFlareProgram->SetValue2f(i ++, vectorToLight.x, vectorToLight.y);
|
---|
| 1450 | sCgLenseFlareProgram->SetValue1f(i ++, distanceToLight);
|
---|
[3215] | 1451 | sCgLenseFlareProgram->SetValue1f(i ++, (float)mSunVisiblePixels);
|
---|
[3213] | 1452 |
|
---|
[3212] | 1453 | DrawQuad(sCgLenseFlareProgram);
|
---|
| 1454 |
|
---|
| 1455 | PrintGLerror("LenseFlare");
|
---|
| 1456 | }
|
---|
| 1457 |
|
---|
| 1458 |
|
---|
[3232] | 1459 | void DeferredRenderer::DepthOfField(FrameBufferObject *fbo)
|
---|
| 1460 | {
|
---|
| 1461 | ColorBufferObject *colorBuffer = fbo->GetColorBuffer(colorBufferIdx);
|
---|
| 1462 | GLuint colorsTex = colorBuffer->GetTexture();
|
---|
| 1463 |
|
---|
| 1464 | FlipFbos(fbo);
|
---|
| 1465 |
|
---|
| 1466 | int i = 0;
|
---|
| 1467 |
|
---|
[3235] | 1468 | const float zFocus = 7.0f;
|
---|
| 1469 |
|
---|
[3232] | 1470 | sCgDOFProgram->SetTexture(i ++, colorsTex);
|
---|
| 1471 | sCgDOFProgram->SetArray2f(i ++, (float *)dofSamples, NUM_DOF_TABS);
|
---|
[3235] | 1472 | sCgDOFProgram->SetValue1f(i ++, min(mCamera->GetFar(), mMaxDistance) - mCamera->GetNear());
|
---|
| 1473 | sCgDOFProgram->SetValue1f(i ++, zFocus);
|
---|
[3232] | 1474 |
|
---|
| 1475 | DrawQuad(sCgDOFProgram);
|
---|
| 1476 |
|
---|
| 1477 | PrintGLerror("LenseFlare");
|
---|
| 1478 | }
|
---|
| 1479 |
|
---|
| 1480 |
|
---|
[3219] | 1481 | void DeferredRenderer::SaveFrame(FrameBufferObject *fbo)
|
---|
| 1482 | {
|
---|
| 1483 | ColorBufferObject *colorBuffer = fbo->GetColorBuffer(colorBufferIdx);
|
---|
| 1484 | GLuint colorsTex = colorBuffer->GetTexture();
|
---|
[3215] | 1485 |
|
---|
[3219] | 1486 | GLubyte *data = new GLubyte[mWidth * mHeight * 4];
|
---|
| 1487 |
|
---|
| 1488 | // grab texture data
|
---|
| 1489 | glEnable(GL_TEXTURE_2D);
|
---|
| 1490 | glBindTexture(GL_TEXTURE_2D, colorsTex);
|
---|
| 1491 | glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
|
---|
| 1492 |
|
---|
| 1493 | glBindTexture(GL_TEXTURE_2D, 0);
|
---|
| 1494 | glDisable(GL_TEXTURE_2D);
|
---|
| 1495 |
|
---|
| 1496 | /////////////////
|
---|
| 1497 |
|
---|
| 1498 | startil();
|
---|
| 1499 |
|
---|
| 1500 | static char imageName[200];
|
---|
[3287] | 1501 | sprintf(imageName, "%s_%05d.tga", mSavedFrameSuffix.c_str(), mSavedFrameNumber);
|
---|
[3219] | 1502 |
|
---|
| 1503 | ILstring fileName = ILstring(imageName);
|
---|
| 1504 | ilRegisterType(IL_FLOAT);
|
---|
| 1505 |
|
---|
| 1506 | const int depth = 1;
|
---|
| 1507 | const int bpp = 4;
|
---|
| 1508 |
|
---|
| 1509 | if (!ilTexImage(mWidth, mHeight, depth, bpp, IL_RGBA, IL_UNSIGNED_BYTE, data))
|
---|
| 1510 | {
|
---|
| 1511 | cerr << "IL error " << ilGetError() << endl;
|
---|
| 1512 | stopil();
|
---|
| 1513 | return;
|
---|
| 1514 | }
|
---|
| 1515 |
|
---|
| 1516 | ilEnable(IL_FILE_OVERWRITE);
|
---|
| 1517 |
|
---|
| 1518 | if (!ilSaveImage(fileName))
|
---|
| 1519 | {
|
---|
| 1520 | cerr << "TGA write error " << ilGetError() << endl;
|
---|
| 1521 | }
|
---|
| 1522 |
|
---|
| 1523 | delete [] data;
|
---|
| 1524 | stopil();
|
---|
| 1525 |
|
---|
| 1526 | PrintGLerror("Store frame");
|
---|
| 1527 | }
|
---|
| 1528 |
|
---|
| 1529 |
|
---|
[3215] | 1530 | void DeferredRenderer::SetUseTemporalCoherence(bool temporal)
|
---|
| 1531 | {
|
---|
| 1532 | mUseTemporalCoherence = temporal;
|
---|
| 1533 | }
|
---|
| 1534 |
|
---|
| 1535 |
|
---|
| 1536 | void DeferredRenderer::SetSamplingMethod(SAMPLING_METHOD s)
|
---|
| 1537 | {
|
---|
| 1538 | if (s != mSamplingMethod)
|
---|
| 1539 | {
|
---|
| 1540 | mSamplingMethod = s;
|
---|
| 1541 | mRegenerateSamples = true;
|
---|
| 1542 | }
|
---|
| 1543 | }
|
---|
| 1544 |
|
---|
| 1545 |
|
---|
| 1546 | void DeferredRenderer::SetShadingMethod(SHADING_METHOD s)
|
---|
| 1547 | {
|
---|
| 1548 | if (s != mShadingMethod)
|
---|
| 1549 | {
|
---|
| 1550 | mShadingMethod = s;
|
---|
| 1551 | mRegenerateSamples = true;
|
---|
| 1552 | }
|
---|
| 1553 | }
|
---|
| 1554 |
|
---|
| 1555 |
|
---|
| 1556 | #if TODO
|
---|
| 1557 |
|
---|
| 1558 | void DeferredRenderer::SetNumSamples(int numSamples)
|
---|
| 1559 | {
|
---|
| 1560 | mNumSamples = numSamples;
|
---|
| 1561 | }
|
---|
| 1562 |
|
---|
| 1563 | #endif
|
---|
| 1564 |
|
---|
| 1565 |
|
---|
| 1566 | void DeferredRenderer::SetSampleIntensity(float sampleIntensity)
|
---|
| 1567 | {
|
---|
| 1568 | mSampleIntensity = sampleIntensity;
|
---|
[3247] | 1569 | mRegenerateSamples = true;
|
---|
[3215] | 1570 | }
|
---|
| 1571 |
|
---|
| 1572 |
|
---|
| 1573 | void DeferredRenderer::SetKernelRadius(float kernelRadius)
|
---|
| 1574 | {
|
---|
| 1575 | mKernelRadius = kernelRadius;
|
---|
[3247] | 1576 | mRegenerateSamples = true;
|
---|
[3215] | 1577 | }
|
---|
| 1578 |
|
---|
| 1579 |
|
---|
[3242] | 1580 | /*void DeferredRenderer::SetSortSamples(bool sortSamples)
|
---|
[3215] | 1581 | {
|
---|
| 1582 | mSortSamples = sortSamples;
|
---|
[3242] | 1583 | }*/
|
---|
[3215] | 1584 |
|
---|
| 1585 |
|
---|
| 1586 | void DeferredRenderer::SetSunVisiblePixels(int pixels)
|
---|
| 1587 | {
|
---|
| 1588 | mSunVisiblePixels = pixels;
|
---|
| 1589 | }
|
---|
| 1590 |
|
---|
| 1591 |
|
---|
[3235] | 1592 | void DeferredRenderer::SetMaxDistance(float maxDist)
|
---|
| 1593 | {
|
---|
| 1594 | mMaxDistance = maxDist;
|
---|
| 1595 | }
|
---|
| 1596 |
|
---|
| 1597 |
|
---|
[3242] | 1598 | void DeferredRenderer::SetUseToneMapping(bool toneMapping)
|
---|
| 1599 | {
|
---|
| 1600 | mUseToneMapping = toneMapping;
|
---|
| 1601 | }
|
---|
| 1602 |
|
---|
| 1603 |
|
---|
| 1604 | void DeferredRenderer::SetUseAntiAliasing(bool antiAliasing)
|
---|
| 1605 | {
|
---|
| 1606 | mUseAntiAliasing = antiAliasing;
|
---|
| 1607 | }
|
---|
| 1608 |
|
---|
| 1609 |
|
---|
| 1610 | void DeferredRenderer::SetUseDepthOfField(bool dof)
|
---|
| 1611 | {
|
---|
| 1612 | mUseDepthOfField = dof;
|
---|
| 1613 | }
|
---|
| 1614 |
|
---|
| 1615 |
|
---|
| 1616 | void DeferredRenderer::SetTemporalCoherenceFactorForSsao(float factor)
|
---|
| 1617 | {
|
---|
| 1618 | mTempCohFactor = factor;
|
---|
| 1619 | }
|
---|
| 1620 |
|
---|
| 1621 |
|
---|
[3220] | 1622 | void DeferredRenderer::SetSaveFrame(const string &suffix, int frameNumber)
|
---|
[3219] | 1623 | {
|
---|
[3220] | 1624 | mSavedFrameSuffix = suffix;
|
---|
[3219] | 1625 | mSavedFrameNumber = frameNumber;
|
---|
| 1626 | }
|
---|
[3215] | 1627 |
|
---|
[3219] | 1628 |
|
---|
[3316] | 1629 | void DeferredRenderer::SetMaxConvergence(float c)
|
---|
| 1630 | {
|
---|
| 1631 | mMaxConvergence = c;
|
---|
| 1632 | }
|
---|
| 1633 |
|
---|
| 1634 |
|
---|
[3319] | 1635 | void DeferredRenderer::SetSpatialWeight(float w)
|
---|
| 1636 | {
|
---|
| 1637 | mSpatialWeight = w;
|
---|
| 1638 | }
|
---|
| 1639 |
|
---|
| 1640 |
|
---|
[2858] | 1641 | } // namespace
|
---|