107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
#ifndef HGL_GRAPH_LIGHT_INCLUDE
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#define HGL_GRAPH_LIGHT_INCLUDE
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#include<hgl/math/Math.h>
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#include<hgl/type/Color4f.h>
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namespace hgl
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{
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namespace graph
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{
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enum LightMode
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{
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lmNone = 0,
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lmVertex,
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lmPixel,
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lmEnd
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};//enum LightMode
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/**
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* 光源类型
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*/
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enum LightType
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{
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ltNone=0, ///<起始定义，无意义
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ltSunLight, ///<太阳光
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ltPoint, ///<点光源
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ltDirection, ///<方向光
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ltSpot, ///<聚光灯
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ltInfiniteSpotLight,///<无尽聚光灯
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ltAreaQuad, ///<四边形面光源
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ltEnd ///<结束定义，无意义
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};//enum LightType
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/**
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* 灯光
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*/
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struct Light
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{
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LightType type; ///<光源类型
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bool enabled; ///<是否开启
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Color4f ambient; ///<环境光
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Color4f specular; ///<镜面光
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Color4f diffuse; ///<漫反射
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};//struct Light
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/**
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* 太阳光
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*/
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struct SunLight :public Light
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{
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Vector3f direction;
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};
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/**
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* 方向光
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*/
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struct DirectionLight:public Light
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{
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Vector3f direction; ///<方向
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float nDotVP; ///<normal . light direction
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float nDotHV; ///<normal . half vector
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};//struct DirectionLight
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/**
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* 点光源
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*/
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struct PointLight:public Light
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{
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Vector3f position; ///<光源位置
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Vector3f attenuation; ///<constant,linear,quadratic
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};//struct PointLight
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/**
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* 聚光灯
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*/
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struct SpotLight:public Light
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{
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Vector3f position; ///<位置
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Vector3f direction; ///<方向
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Vector3f attenuation; ///<constant,linear,quadratic
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float coscutoff;
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float exponent;
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};//struct SpotLight
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/**
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* 无尽聚光灯
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*/
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struct InfiniteSpotLight:public Light
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{
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Vector3f position;
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Vector3f direction;
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Vector3f exponent;
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};//struct InfiniteSpotLight
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}//namespace graph
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}//namespace hgl
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#endif//HGL_GRAPH_LIGHT_INCLUDE
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