增加Axis,BlendMode,Light,Material等定义

inc/hgl/graph/Light.h

@@ -0,0 +1,106 @@
+#ifndef HGL_GRAPH_LIGHT_INCLUDE
+#define HGL_GRAPH_LIGHT_INCLUDE
+
+#include<hgl/math/Math.h>
+namespace hgl
+{
+    namespace graph
+    {
+        enum LightMode
+        {
+            lmNone = 0,
+
+            lmVertex,
+            lmPixel,
+
+            lmEnd
+        };//enum LightMode
+
+
+        /**
+         * 光源类型
+         */
+        enum LightType
+        {
+            ltNone=0,			///<起始定义，无意义
+
+            ltSunLight,         ///<太阳光
+
+            ltPoint,			///<点光源
+            ltDirection,		///<方向光
+            ltSpot,				///<聚光灯
+            ltInfiniteSpotLight,///<无尽聚光灯
+
+            ltAreaQuad,			///<四边形面光源
+
+            ltEnd				///<结束定义，无意义
+        };//enum LightType
+
+        /**
+         * 灯光
+         */
+        struct Light
+        {
+            LightType	type;			///<光源类型
+
+            bool		enabled;		///<是否开启
+
+            Color4f		ambient;		///<环境光
+            Color4f		specular;		///<镜面光
+            Color4f		diffuse;		///<漫反射
+        };//struct Light
+
+        /**
+         * 太阳光
+         */
+        struct SunLight :public Light
+        {
+            Vector3f    direction;
+        };
+
+        /**
+         * 方向光
+         */
+        struct DirectionLight:public Light
+        {
+            Vector3f	direction;				///<方向
+
+            float		nDotVP;					///<normal . light direction
+            float		nDotHV;					///<normal . half vector
+        };//struct DirectionLight
+
+        /**
+         * 点光源
+         */
+        struct PointLight:public Light
+        {
+            Vector3f	position;				///<光源位置
+
+            Vector3f	attenuation;			///<constant,linear,quadratic
+        };//struct PointLight
+
+        /**
+         * 聚光灯
+         */
+        struct SpotLight:public Light
+        {
+            Vector3f	position;				///<位置
+            Vector3f	direction;				///<方向
+            Vector3f	attenuation;			///<constant,linear,quadratic
+
+            float		coscutoff;
+            float		exponent;
+        };//struct SpotLight
+
+        /**
+         * 无尽聚光灯
+         */
+        struct InfiniteSpotLight:public Light
+        {
+            Vector3f	position;
+            Vector3f	direction;
+            Vector3f	exponent;
+        };//struct InfiniteSpotLight
+    }//namespace graph
+}//namespace hgl
+#endif//HGL_GRAPH_LIGHT_INCLUDE