[2954] | 1 | #ifndef _SKYPREETHAM_H__
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| 2 | #define _SKYPREETHAM_H__
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| 3 |
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[2957] | 4 | #include "glInterface.h"
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[2960] | 5 | #include "common.h"
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[3021] | 6 | #include "ShaderProgram.h"
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| 7 |
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[2957] | 8 | #include <Cg/cg.h>
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| 9 | #include <Cg/cgGL.h>
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| 10 |
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| 11 |
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[3021] | 12 | namespace CHCDemoEngine {
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| 13 | class Vector3;
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| 14 | class SceneEntity;
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| 15 | class RenderState;
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| 16 | class Camera;
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[3038] | 17 | class ShaderProgram;
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[2955] | 18 | }
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| 19 |
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| 20 | class SkyPreetham
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[2954] | 21 | {
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| 22 | public:
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[2957] | 23 | /// Constructor taking sky turbitity as parameter and the sky dome geometry
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| 24 | SkyPreetham(float turbitity, CHCDemoEngine::SceneEntity *skyDome);
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[3021] | 25 |
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| 26 | ~SkyPreetham();
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[2954] | 27 |
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[3021] | 28 | void RenderSkyDome(const CHCDemoEngine::Vector3 &sunDir,
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| 29 | CHCDemoEngine::Camera *camera,
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| 30 | CHCDemoEngine::RenderState *state,
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| 31 | bool scaleToRange);
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[2955] | 32 |
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[2960] | 33 | void ComputeFactors(const CHCDemoEngine::Vector3 &sunDir,
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| 34 | CHCDemoEngine::Vector3 &zenithColor,
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| 35 | std::vector<CHCDemoEngine::Vector3> &ABCDE,
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| 36 | std::pair<float, float> &sunThetha) const;
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| 37 |
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[2982] | 38 | void ComputeSunColor(const CHCDemoEngine::Vector3 &sunDir,
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| 39 | CHCDemoEngine::Vector3 &ambient,
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| 40 | CHCDemoEngine::Vector3 &diffuse,
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| 41 | bool scaleToRange) const;
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[2960] | 42 |
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[3038] | 43 | void InitCG();
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[2960] | 44 |
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[3021] | 45 |
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[2954] | 46 | protected:
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| 47 |
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[2958] | 48 | void RenderSunDisk(const CHCDemoEngine::Vector3 &lightDir, CHCDemoEngine::Camera *camera);
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[2955] | 49 | void CreateSunQuad();
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[2954] | 50 |
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| 51 |
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[3038] | 52 | //////////
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[2954] | 53 |
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[3038] | 54 | /* FEffect* mEffect;
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| 55 |
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[2954] | 56 | FEffect* mSunEffect;
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| 57 | FTexture2D* mSunTexture;
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| 58 | FVertexBuffer* mSunQuad;
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[3038] | 59 | */
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| 60 |
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[2957] | 61 | CHCDemoEngine::SceneEntity *mSkyDome;
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| 62 |
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[3038] | 63 | /// the turbidity of the sky
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[2954] | 64 | float mTurbidity;
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[3021] | 65 |
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[3038] | 66 | CHCDemoEngine::ShaderProgram *mSkyVtxProgram;
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| 67 | CHCDemoEngine::ShaderProgram *mSkyFragProgram;
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[2954] | 68 | };
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| 69 |
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| 70 | #endif //_SKYPREETHAM_H__
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| 71 |
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