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lightenv.h
Package: celestia-1.6.0.tar.gz [view]
Upload User: center1979
Upload Date: 2022-07-26
Package Size: 50633k
Code Size: 1k
Category:
OpenGL program
Development Platform:
Visual C++
- // lightenv.h
- //
- // Structures that describe the lighting environment for rendering objects
- // in Celestia.
- //
- // Copyright (C) 2006, Chris Laurel <claurel@shatters.net>
- //
- // This program is free software; you can redistribute it and/or
- // modify it under the terms of the GNU General Public License
- // as published by the Free Software Foundation; either version 2
- // of the License, or (at your option) any later version.
- #ifndef _CELENGINE_LIGHTENV_H_
- #define _CELENGINE_LIGHTENV_H_
- #include <celutil/color.h>
- #include <celmath/vecmath.h>
- #include <vector>
- static const unsigned int MaxLights = 8;
- class DirectionalLight
- {
- public:
- Color color;
- float irradiance;
- Vec3f direction_eye;
- Vec3f direction_obj;
- // Required for eclipse shadows only--may be able to use
- // distance instead of position.
- Vec3d position; // position relative to the lit object
- float apparentSize;
- bool castsShadows;
- };
- class EclipseShadow
- {
- public:
- Point3f origin;
- Vec3f direction;
- float penumbraRadius;
- float umbraRadius;
- float maxDepth;
- };
- class LightingState
- {
- public:
- LightingState() : nLights(0),
- eyeDir_obj(0.0f, 0.0f, -1.0f),
- eyePos_obj(0.0f, 0.0f, -1.0f)
- { shadows[0] = NULL; };
- unsigned int nLights;
- DirectionalLight lights[MaxLights];
- std::vector<EclipseShadow>* shadows[MaxLights];
- Vec3f eyeDir_obj;
- Point3f eyePos_obj;
- Vec3f ambientColor;
- };
- #endif // _CELENGINE_LIGHTENV_H_