d3dutility.h

d3d编程中的场景中的光照效果的实现的一个简单DEMO

#ifndef __d3dUtilityH__
#define __d3dUtilityH__

#include <d3dx9.h>
#include <string>

namespace d3d
{
	bool InitD3D(//初始化d3d
		HINSTANCE hInstance,       // [in] Application instance.
		int width, int height,     // [in] Backbuffer dimensions.
		bool windowed,             // [in] Windowed (true)or full screen (false).
		D3DDEVTYPE deviceType,     // [in] HAL or REF
		IDirect3DDevice9** device);// [out]The created device.

	int EnterMsgLoop(			//	消息循环
		bool (*ptr_display)(float timeDelta));//函数指针形式

	LRESULT CALLBACK WndProc(			//	回调函数
		HWND hwnd,
		UINT msg, 
		WPARAM wParam,
		LPARAM lParam);

	template<class T> void Release(T t)
	{
		if( t )
		{
			t->Release();
			t = 0;
		}
	}
		
	template<class T> void Delete(T t)
	{
		if( t )
		{
			delete t;
			t = 0;
		}
	}

	//颜色常量
	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) );
	const D3DXCOLOR    AAA( D3DCOLOR_XRGB(75, 75,75) );

	//
	// Lights
	//
	//	方向光
	D3DLIGHT9 InitDirectionalLight(
		D3DXVECTOR3* direction, //方向
		D3DXCOLOR* color//颜色
	);
	//	点光源
	D3DLIGHT9 InitPointLight(
		D3DXVECTOR3* position, //位置
		D3DXCOLOR* color//颜色
	);
	//	聚光灯
	D3DLIGHT9 InitSpotLight(
		D3DXVECTOR3* position, //位置
		D3DXVECTOR3* direction, //方向
		D3DXCOLOR* color//颜色
	);

	//
	// Materials
	//
	//	初始化材质
	D3DMATERIAL9 InitMtrl(D3DXCOLOR a, D3DXCOLOR d, D3DXCOLOR s, D3DXCOLOR e, float p);

	// 材质常量
	const D3DMATERIAL9 WHITE_MTRL  = InitMtrl(WHITE, WHITE, WHITE, BLACK, 2.0f);
	const D3DMATERIAL9 RED_MTRL    = InitMtrl(RED, RED, RED, BLACK, 2.0f);
	const D3DMATERIAL9 GREEN_MTRL  = InitMtrl(GREEN, GREEN, GREEN, BLACK, 2.0f);
	const D3DMATERIAL9 BLUE_MTRL   = InitMtrl(BLUE, BLUE, BLUE, BLACK, 2.0f);
	const D3DMATERIAL9 YELLOW_MTRL = InitMtrl(YELLOW, YELLOW, YELLOW, BLACK, 2.0f);
}

#endif // __d3dUtilityH__