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[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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[2957] | 6 | #include <Cg/cg.h>
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| 7 | #include <Cg/cgGL.h>
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| 8 |
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| 9 |
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[2955] | 10 | namespace CHCDemoEngine{
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| 11 | class Vector3;
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[2957] | 12 | class SceneEntity;
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| 13 | class RenderState;
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| 14 | class Camera;
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[2955] | 15 | }
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| 16 |
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| 17 | class SkyPreetham
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[2954] | 18 | {
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| 19 | public:
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[2957] | 20 | /// Constructor taking sky turbitity as parameter and the sky dome geometry
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| 21 | SkyPreetham(float turbitity, CHCDemoEngine::SceneEntity *skyDome);
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[2954] | 22 | virtual ~SkyPreetham();
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| 23 |
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[2960] | 24 | void RenderSkyDome(const CHCDemoEngine::Vector3 &sunDir, CHCDemoEngine::Camera *camera, CHCDemoEngine::RenderState *state);
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[2955] | 25 |
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[2957] | 26 | static void Init(CGcontext context);
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| 27 |
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[2960] | 28 | void ComputeFactors(const CHCDemoEngine::Vector3 &sunDir,
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| 29 | CHCDemoEngine::Vector3 &zenithColor,
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| 30 | std::vector<CHCDemoEngine::Vector3> &ABCDE,
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| 31 | std::pair<float, float> &sunThetha) const;
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| 32 |
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| 33 | void ComputeSunColor(const CHCDemoEngine::Vector3 &sunDir, CHCDemoEngine::Vector3 &ambient, CHCDemoEngine::Vector3 &diffuse) const;
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| 34 |
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| 35 |
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[2954] | 36 | protected:
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| 37 |
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[2958] | 38 | void RenderSunDisk(const CHCDemoEngine::Vector3 &lightDir, CHCDemoEngine::Camera *camera);
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[2955] | 39 | void CreateSunQuad();
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[2954] | 40 |
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| 41 |
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| 42 | /// Members.
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[2955] | 43 | /* FEffect* mEffect;
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[2954] | 44 |
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| 45 | FEffect* mSunEffect;
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| 46 | FTexture2D* mSunTexture;
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| 47 | FVertexBuffer* mSunQuad;
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[2955] | 48 | */
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[2957] | 49 | CHCDemoEngine::SceneEntity *mSkyDome;
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| 50 |
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[2954] | 51 | float mTurbidity;
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| 52 | };
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| 53 |
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| 54 | #endif //_SKYPREETHAM_H__
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| 55 |
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