1 | #include "common.h"
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2 | #include "Material.h"
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3 | #include "Texture.h"
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4 | #include "glInterface.h"
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5 | #include "RenderState.h"
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6 |
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7 |
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8 | namespace CHCDemoEngine
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9 | {
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10 |
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11 | CGparameter Material::sDiffuseParam;
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12 | CGparameter Material::sDiffuseTexParam;
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13 |
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14 | RgbaColor RandomColor(float a, float b)
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15 | {
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16 | return RgbaColor(a + Random(b), a + Random(b), a + Random(b), 1);
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17 | }
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18 |
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19 |
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20 | void Material::InitMaterial()
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21 | {
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22 | mTexture = NULL;
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23 | mAlphaTestEnabled = false;
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24 |
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25 | mAmbientColor = RgbaColor(0.2f, 0.2f, 0.2f, 1.0f);
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26 | mDiffuseColor = RgbaColor(1.0f, 1.0f, 1.0f, 1.0f);
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27 | mSpecularColor = RgbaColor(.0f, .0f, .0f, 1.0f);
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28 | mEmmisiveColor = RgbaColor(.0f, .0f, .0f, 1.0f);
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29 | }
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30 |
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31 |
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32 | Material::Material()
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33 | {
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34 | InitMaterial();
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35 | }
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36 |
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37 |
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38 | Material::Material(const RgbaColor &color):
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39 | mDiffuseColor(color),
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40 | mAmbientColor(color),
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41 | mSpecularColor(0, 0, 0, 1),
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42 | mTexture(NULL)
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43 | {
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44 | }
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45 |
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46 |
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47 | Material RandomMaterial()
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48 | {
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49 | float a = 0.1f;
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50 | float b = 0.9f;
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51 |
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52 | Material m;
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53 | m.mDiffuseColor = RandomColor(a, b);
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54 |
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55 | return m;
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56 | }
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57 |
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58 |
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59 | //void Material::Render(RenderState *state)
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60 | void Material::Render(RenderState *state)
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61 | {
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62 | state->SetState(mTexture != NULL, mAlphaTestEnabled);
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63 |
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64 | if (mTexture)
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65 | {
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66 | mTexture->Bind();
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67 | cgGLSetParameter4f(sDiffuseTexParam, mDiffuseColor.r, mDiffuseColor.g, mDiffuseColor.b, mDiffuseColor.a);
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68 | }
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69 | else
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70 | {
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71 | cgGLSetParameter4f(sDiffuseParam, mDiffuseColor.r, mDiffuseColor.g, mDiffuseColor.b, mDiffuseColor.a);
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72 | glBindTexture(GL_TEXTURE_2D, 0);
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73 | }
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74 |
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75 | glMaterialfv(GL_FRONT, GL_AMBIENT, (float *)&mAmbientColor.r);
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76 | glMaterialfv(GL_FRONT, GL_DIFFUSE, (float *)&mDiffuseColor.r);
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77 | glMaterialfv(GL_FRONT, GL_EMISSION, (float *)&mEmmisiveColor.r);
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78 | glMaterialfv(GL_FRONT, GL_SPECULAR, (float *)&mSpecularColor.r);
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79 | }
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80 |
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81 |
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82 | }
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