DirectX3D 纹理贴图

//初始化部分
// 创建一个cube
	g_Box = new Cube(g_Device);

	// 设置方向光源
	D3DLIGHT9 light;
	::ZeroMemory(&light, sizeof(light));
	light.Type      = D3DLIGHT_DIRECTIONAL;
	light.Type      = D3DLIGHT_DIRECTIONAL;
	light.Ambient   = D3DXCOLOR(0.8f, 0.8f, 0.8f, 1.0f);
	light.Diffuse   = D3DXCOLOR(1.0f, 1.0f, 1.0f, 1.0f);
	light.Specular  = D3DXCOLOR(0.2f, 0.2f, 0.2f, 1.0f);
	light.Direction = D3DXVECTOR3(1.0f, -1.0f, 0.0f);
	g_Device->SetLight(0, &light);
	g_Device->LightEnable(0, true);
	
	g_Device->SetRenderState(D3DRS_NORMALIZENORMALS, true);
	g_Device->SetRenderState(D3DRS_SPECULARENABLE, true);

	// 创建一个纹理
	D3DXCreateTextureFromFile(g_Device, "crate.jpg", &g_Tex);
	// 设置纹理过滤器
	//g_Device->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
	//g_Device->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR);
	//g_Device->SetSamplerState(0, D3DSAMP_MIPFILTER, D3DTEXF_LINEAR);
	// 高质量贴图，需要硬件支持，用前查询CAPS结构
	g_Device->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_ANISOTROPIC);
	g_Device->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_ANISOTROPIC);
	g_Device->SetSamplerState(0, D3DSAMP_MIPFILTER, D3DTEXF_ANISOTROPIC);
	g_Device->SetSamplerState(0,D3DSAMP_MAXANISOTROPY,4);


	// 设置投影矩阵
	D3DXMATRIX proj;
	D3DXMatrixPerspectiveFovLH(
		&proj,
		D3DX_PI * 0.5f, // 90 - degree
		(float)WINDOW_WIDTH / (float)WINDOW_HEIGHT,
		1.0f,
		1000.0f);
	g_Device->SetTransform(D3DTS_PROJECTION, &proj);

//显示部分
if (g_Device)
	{
		static float angle  = (3.0f * D3DX_PI) / 2.0f;
		static float height = 2.0f;

		if( ::GetAsyncKeyState(VK_LEFT) & 0x8000f )
			angle -= 0.5f * timeDelta;

		if( ::GetAsyncKeyState(VK_RIGHT) & 0x8000f )
			angle += 0.5f * timeDelta;

		if( ::GetAsyncKeyState(VK_UP) & 0x8000f )
			height += 5.0f * timeDelta;

		if( ::GetAsyncKeyState(VK_DOWN) & 0x8000f )
			height -= 5.0f * timeDelta;

		D3DXVECTOR3 position( cosf(angle) * 3.0f, height, sinf(angle) * 3.0f );
		D3DXVECTOR3 target(0.0f, 0.0f, 0.0f);
		D3DXVECTOR3 up(0.0f, 1.0f, 0.0f);
		D3DXMATRIX V;
		D3DXMatrixLookAtLH(&V, &position, &target, &up);

		g_Device->SetTransform(D3DTS_VIEW, &V);

		// 绘制场景
		g_Device->Clear(0, 0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0x00008060, 1.0f, 0);
		g_Device->BeginScene();

		g_Device->SetMaterial(&d3d::WHITE_MTRL);
		g_Device->SetTexture(0, g_Tex);

		g_Box->draw(0, 0, 0);

		g_Device->EndScene();
		g_Device->Present(0, 0, 0, 0);

	}