Changeset 2895 for GTP/trunk/App/Demos/Vis/FriendlyCulling/src/chcdemo.cpp

Timestamp:

09/02/08 15:29:20 (16 years ago)

Author:

mattausch

Message:

 

File:

• GTP/trunk/App/Demos/Vis/FriendlyCulling/src/chcdemo.cpp (modified) (15 diffs)

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/chcdemo.cpp

@@ -34 +34 @@
 #include "FrameBufferObject.h"
 #include "SsaoShader.h"
-#include "DeferredShader.h"
 #include "ShadowMapping.h"
 #include "Light.h"
@@ -95 +94 @@
 static int winHeight = 768;
 
-//static int winWidth = 512;
-//static int winHeight = 512;
-
 
 static float winAspectRatio = 1.0f;
@@ -172 +168 @@
 bool useLODs = true;
 
-int samplingMethod = SsaoShader::POISSON;
+SsaoShader::SAMPLING_METHOD samplingMethod = SsaoShader::POISSON;
+SsaoShader::SHADING_METHOD shadingMethod = SsaoShader::DEFAULT;
+
+bool showShadowMap = false;
+bool shadowChanged = true;
 
 static Matrix4x4 matProjectionView = IdentityMatrix();
@@ -179 +179 @@
 ShadowMap *shadowMap = NULL;
 Light *light = NULL;
+
 
 // function forward declarations
@@ -225 +226 @@
 
 SsaoShader *ssaoShader = NULL;
-DeferredShader *deferredShader = NULL;
 
 static GLenum mrt[] = {GL_COLOR_ATTACHMENT0_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_COLOR_ATTACHMENT2_EXT};
@@ -431 +431 @@
         InitCg();
 
-        DeferredShader::Init(sCgContext);
         SsaoShader::Init(sCgContext);
 
@@ -442 +441 @@
         sceneQuery = new SceneQuery(bvh->GetBox(), traverser);
 
-        Vector3 lightDir = Normalize(Vector3(0, 1, -1));
+        //Vector3 lightDir = Normalize(Vector3(0, 1, -1));
+        Vector3 lightDir = Normalize(-Vector3(0.8f, -1.0f, 0.7f));
+        
         light = new Light(lightDir, RgbaColor(1, 1, 1, 1));
 
-        const float shadowSize = 4096;
-        shadowMap = new ShadowMap(shadowSize, bvh->GetBox(), camera);
-        
+
         // frame time is restarted every frame
         frameTimer.Start();
@@ -867 +866 @@
         }
         
+        if (showShadowMap && !shadowMap)
+        {
+                const float shadowSize = 4096;
+                shadowMap = new ShadowMap(shadowSize, bvh->GetBox(), camera);
+        }
+
         // render without shading
         switch (renderType)
@@ -897 +902 @@
         
                 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
                 glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
 
@@ -904 +908 @@
         case RenderState::DEFERRED:
 
-                shadowMap->ComputeShadowMap(light, traverser);
+                // change CHC state (must be done for each change of camera)
+                BvhNode::SetCurrentState(1);
+
+                if (showShadowMap && shadowChanged)
+                {
+                        shadowChanged = false;
+
+                        cgGLDisableProfile(RenderState::sCgFragmentProfile);
+                        cgGLDisableProfile(RenderState::sCgVertexProfile);
+
+                        state.SetRenderType(RenderState::DEPTH_PASS);
+
+                        // the scene is rendered withouth any shading   
+                        shadowMap->ComputeShadowMap(light, traverser);
+
+                        // change back state
+                        BvhNode::SetCurrentState(0);
+
+                        glEnable(GL_LIGHTING);
+                        glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+                }
 
                 if (!fbo) InitFBO();
+
 
                 // multisampling does not work with deferred shading
@@ -989 +1014 @@
                 cgGLDisableProfile(RenderState::sCgFragmentProfile);
 
-                if (useSsao)
-                {
-                        if (!ssaoShader) ssaoShader = new SsaoShader(texWidth, texHeight, camera, myfar / 10.0f);
-                        ssaoShader->Render(fbo, oldViewProjMatrix, ssaoExpFactor);
-
-                }
-                else
-                {
-                        if (!deferredShader) deferredShader = new DeferredShader(texWidth, texHeight, myfar / 10.0f);
-                        
-                        deferredShader->Render(fbo, shadowMap);
-                }
+                if (!ssaoShader) ssaoShader = new SsaoShader(texWidth, texHeight, camera, myfar / 10.0f);
+                
+                ssaoShader->SetShadingMethod(shadingMethod);
+                ssaoShader->SetSamplingMethod(samplingMethod);
+                ssaoShader->SetUseTemporalCoherence(useTemporalCoherence);
+
+                ShadowMap *sm = showShadowMap ? shadowMap : NULL;
+                ssaoShader->Render(fbo, oldViewProjMatrix, ssaoExpFactor, sm);
         }
 
@@ -1118 +1139 @@
                         samplingMethod = SsaoShader::GAUSS;
 
-                ssaoShader->SetSamplingMethod(samplingMethod);
-
+                break;
+        case 'Y':
+        case 'y':
+                showShadowMap = !showShadowMap;
                 break;
         case 'g':
-        case 'G':
-                useGlobIllum = !useGlobIllum;
-                ssaoShader->SetUseGlobIllum(useGlobIllum);
-                break;
         case 't':
         case 'T':
                 useTemporalCoherence = !useTemporalCoherence;
-                ssaoShader->SetUseTemporalCoherence(useTemporalCoherence);
                 break;
         case 'o':
@@ -1262 +1280 @@
                 break;
         case GLUT_KEY_F8:
-                useSsao = !useSsao;
+                shadingMethod = (SsaoShader::SHADING_METHOD)((shadingMethod + 1) % 3);
+                
                 break;
         case GLUT_KEY_F9:
@@ -1562 +1581 @@
         DEL_PTR(fbo);
         DEL_PTR(ssaoShader);
-        DEL_PTR(deferredShader);
 
         if (sCgMrtVertexProgram)
@@ -1766 +1784 @@
 }
 
-
+// render visible object from depth pass
 void RenderVisibleObjects()
 {