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            http://hi.baidu.com/zyb_debug/blog/item/aee40a12b5877c896438db9d.html
            不多說了，龍書的材質燈光函數?？芍赜么a
            

            //=========================================
            /**
            @brief  
            @param 定義一些顏色常量
            @return
            */
            //=========================================
            const D3DXCOLOR WHITE(D3DCOLOR_XRGB(255,255,255));
            const D3DXCOLOR BLACK(D3DCOLOR_XRGB(0,0,0));
            const D3DXCOLOR RED(D3DCOLOR_XRGB(255,0,0));
            const D3DXCOLOR GREEN(D3DCOLOR_XRGB(0,255,0));
            const D3DXCOLOR BLUE(D3DCOLOR_XRGB(0,0,255));
            const D3DXCOLOR YELLOW(D3DCOLOR_XRGB(255,255,0));
            const D3DXCOLOR CYAN(D3DCOLOR_XRGB(0,255,255));
            const D3DXCOLOR MAGENTA(D3DCOLOR_XRGB(255,0,255));


            D3DMATERIAL9 InitMtrl(D3DXCOLOR a,D3DXCOLOR d,D3DXCOLOR s,D3DXCOLOR e,            float p);

            //=========================================
               /**
               @brief  
               @param 定義一些基本常用材質
               @return
                           */
            //=========================================
            const D3DMATERIAL9 WHITE_MTRL = InitMtrl(WHITE,WHITE,WHITE,BLACK,8.0f);
            const D3DMATERIAL9 RED_MTRL = InitMtrl(RED,RED,RED,BLACK,8.0f);
            const D3DMATERIAL9 GREEN_MTRL = InitMtrl(GREEN,GREEN,GREEN,BLACK,8.0f);
            const D3DMATERIAL9 BLUE_MTRL = InitMtrl(BLUE,BLUE,BLUE,BLACK,8.0f);
            const D3DMATERIAL9 YELLOW_MTRL = InitMtrl(YELLOW,YELLOW,YELLOW,BLACK,8.0f);

            //=========================================
               /**
               @brief  
               @param 燈光
               @return
                           */
            //=========================================
            D3DLIGHT9 InitDirectionalLight(D3DXVECTOR3* direction, D3DXCOLOR* color);
            D3DLIGHT9 InitPointLight(D3DXVECTOR3            * position, D3DXCOLOR* color);
            D3DLIGHT9 InitSpotLight(D3DXVECTOR3            * position, D3DXVECTOR3* direction, D3DXCOLOR* color);

            //=========================================
            /**
            @brief  
            @param 初始化材質
            @return
            */
            //=========================================
            D3DMATERIAL9 InitMtrl(D3DXCOLOR a,D3DXCOLOR d,D3DXCOLOR s,D3DXCOLOR e,float p)
            {
               D3DMATERIAL9 mtrl;
               mtrl.Ambient             = a;
               mtrl.Diffuse             = d;
               mtrl.Specular             = s;
               mtrl.Emissive             = e;
               mtrl.Power             = p;
                           return mtrl;

            }

            //=========================================
               /**
               @brief  
               @param 燈光
               @return
                           */
            //=========================================

            D3DLIGHT9 InitDirectionalLight(D3DXVECTOR3            * direction, D3DXCOLOR* color)
            {
               D3DLIGHT9 light;
               ::ZeroMemory(            &light, sizeof(light));

               light.Type                  = D3DLIGHT_DIRECTIONAL;
               light.Ambient               = *color * 0.4f;
               light.Diffuse               = *color;
               light.Specular             = *color * 0.6f;
               light.Direction             = *direction;

                           return light;
            }

            D3DLIGHT9 InitPointLight(D3DXVECTOR3            * position, D3DXCOLOR* color)
            {
               D3DLIGHT9 light;
               ::ZeroMemory(            &light, sizeof(light));

               light.Type                  = D3DLIGHT_POINT;
               light.Ambient               = *color * 0.4f;
               light.Diffuse               = *color;
               light.Specular             = *color * 0.6f;
               light.Position             = *position;
               light.Range                    = 1000.0f;
               light.Falloff                  = 1.0f;
               light.Attenuation0             = 1.0f;
               light.Attenuation1             = 0.0f;
               light.Attenuation2             = 0.0f;

                           return light;
            }

            D3DLIGHT9 InitSpotLight(D3DXVECTOR3            * position, D3DXVECTOR3* direction, D3DXCOLOR* color)
            {
               D3DLIGHT9 light;
               ::ZeroMemory(            &light, sizeof(light));

               light.Type                  = D3DLIGHT_SPOT;
               light.Ambient               = *color * 0.4f;
               light.Diffuse               = *color;
               light.Specular             = *color * 0.6f;
               light.Position             = *position;
               light.Direction             = *direction;
               light.Range                    = 1000.0f;
               light.Falloff                  = 1.0f;
               light.Attenuation0             = 1.0f;
               light.Attenuation1             = 0.0f;
               light.Attenuation2             = 0.0f;
               light.Theta                    = 0.5f;
               light.Phi                      = 0.7f;

                           return light;
            }

            }
            

            
		
            
		Posted on 2009-08-15 17:15 zyb_debug 閱讀(1102) 評論(0)  編輯 收藏 引用  
			
			


		
            
	
            


            
	    
    




            






            

				
	
            
	
	
	

            
    
    







            
	   
	



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