C++ CD3DTexture::select方法代码示例

void Combined()
{
    // Begin rendering the Sobel Filter along the X-axis
    gRenderTarget.begin(&gBlurTexture2);
    gRenderTarget.clear(D3DCOLOR_XRGB(255, 255, 255));

    // Select unfiltered render target to the left side of the screen
    gDiffTex.select();
    g3D->renderSAQ(0, 0, 256, 256, "GuassianBlurVert");

    gRenderTarget.end(); // Finish rendering to the shadow map

    // Begin rendering the Sobel Filter along the Y-axis
    gRenderTarget.begin(&gBlurTexture1);

    gRenderTarget.clear(D3DCOLOR_XRGB(255, 255, 255));

    // Select unfiltered render target to the left side of the screen
    gBlurTexture2.select();
    g3D->renderSAQ(0, 0, 256, 256, "GuassianBlurHorz");

    gRenderTarget.end(); // Finish rendering to the shadow map

    ////// Sobel

    // Begin rendering the Sobel Filter along the X-axis
    gRenderTarget.begin(&gBlurTexture2);
    gRenderTarget.clear(D3DCOLOR_XRGB(255, 255, 255));

    // Select unfiltered render target to the left side of the screen
    gBlurTexture1.select();
    g3D->renderSAQ(0, 0, 256, 256, "SobelFilter");

    gRenderTarget.end(); // Finish rendering to the shadow map
}

void RenderScene()
{
    g3D->begin(); // Begin the scene
    g3D->clear(D3DCOLOR_XRGB(0,0,0)); // Clear the frame buffer color, z-buffer, and stencil buffer

    // Select unfiltered render target to the left side of the screen
    gDiffTex.select();
    g3D->renderSAQ(0,0,256,256);

    gBlurTexture2.select();
    g3D->renderSAQ((float)kWinWid-256,0,256,256);

    g3D->end();
}

void RenderScene()
{
	g3D->begin(); // Begin the scene
	g3D->clear(D3DCOLOR_XRGB(0,0,25)); // Clear the frame buffer color, z-buffer, and stencil buffer
			
	D3DXMATRIX wMat; // world matrix for each object we want to render
	
	// Select the shadow map as the active texture
	gShadowMap.select();
	
	// Translate and draw the ground
	D3DXMatrixTranslation(&wMat, kGroundPos.x, kGroundPos.y, kGroundPos.z);
	g3D->setWorldMatrix(&wMat);
	g3D->render("PerPixelLightingWithShadowMap", gGround);
			
	// Translate and draw the box
	D3DXMatrixTranslation(&wMat, kBoxPos.x, kBoxPos.y, kBoxPos.z);
	g3D->setWorldMatrix(&wMat);
	g3D->render("PerPixelLightingWithShadowMap", gBox);
	
	// Translate and draw the sphere		
	D3DXMatrixTranslation(&wMat, kSherePos.x, kSherePos.y, kSherePos.z);
	g3D->setWorldMatrix(&wMat);
	g3D->render("PerPixelLightingWithShadowMap", gSphere);
	
	// Draw the tiny sphere representing the light
	D3DXMatrixIdentity(&wMat);
	D3DXMatrixTranslation(&wMat, gLightPos.x, gLightPos.y, gLightPos.z);
	g3D->setWorldMatrix(&wMat);
	g3D->render(gLight);
	
	g3D->end();
}

void RenderSobelFilter()
{
    // Begin rendering the Sobel Filter along the X-axis
    gRenderTarget.begin(&gBlurTexture2);
    gRenderTarget.clear(D3DCOLOR_XRGB(255, 255, 255));

    // Select unfiltered render target to the left side of the screen
    gDiffTex.select();
    g3D->renderSAQ(0, 0, 256, 256, "SobelFilter");

    gRenderTarget.end(); // Finish rendering to the shadow map
}

// Main window program
int WINAPI WinMain(HINSTANCE hinstance, HINSTANCE hprev, PSTR cmdline, int ishow)
{
	HWND hwnd = NULL;
	MSG msg = {0};
	WNDCLASSEX wndclassex = {0};

	// Init fields we care about
	wndclassex.cbSize = sizeof(WNDCLASSEX); // Always set to size of WNDCLASSEX
	wndclassex.style = CS_HREDRAW | CS_VREDRAW;
	wndclassex.lpfnWndProc = WinProc;
	wndclassex.hInstance = hinstance;
	wndclassex.lpszClassName = kClassName;
	wndclassex.hCursor = (HCURSOR)LoadImage(NULL, MAKEINTRESOURCE(IDC_ARROW),
											IMAGE_CURSOR, 0, 0, LR_SHARED);

	RegisterClassEx(&wndclassex); // Register the WNDCLASSEX

	RECT rect = { 0, 0, kWinWid, kWinHgt }; // Desired window client rect

	DWORD winStyleEx = WS_EX_CLIENTEDGE;
	DWORD winStyle = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME |
					 WS_CLIPCHILDREN | WS_CLIPSIBLINGS;

	// Adjust window rect so it gives us our desired client rect when we 
	// create the window
	AdjustWindowRectEx(&rect, winStyle, false, winStyleEx);
	
	// Create the window
    hwnd = CreateWindowEx(winStyleEx, // Window extended style
					      kClassName,
						  "www.GameTutorials.com -- D3D Vertex Buffers",
						  winStyle, // Window style
						  CW_USEDEFAULT,
						  CW_USEDEFAULT,
						  rect.right - rect.left,
						  rect.bottom - rect.top,
						  NULL,
						  NULL,
						  hinstance,
						  NULL);
						  
	// Get the client rect and make sure our client is the size we want
	GetClientRect(hwnd, &rect);
	assert(rect.right == kWinWid && rect.bottom == kWinHgt);

	// Init our global 3D object
	if(g3D->init(hwnd) == false)
		return EXIT_FAILURE; // There's been an error, lets get out of this joint
		
	if(gTexture.load("Texture.jpg") == false)
		return EXIT_FAILURE; // There's been an error, lets get out of this joint
		
	// Create and set the vertex buffer in our CD3DMesh object
	if(gQuad.setVertexData(gQuadVertexData, kMaxVerts) == false)
		return EXIT_FAILURE; // This is bad!  The tutorial is officially broken

	// Set the perspective matrix once because it will never change
	g3D->setProjMatrix(DEG2RAD(60), (float)rect.right / (float)rect.bottom, 1.0f, 8192.0f);
	
	// We set up our view matrix once because it will never change
	g3D->setViewMatrix(CPos(0.0f, 0.0f, -5.0f), CPos(0.0f, 0.0f, 0.0f));

	ShowWindow(hwnd, ishow);
	UpdateWindow(hwnd);

    while(1) // While the app is running
	{
		if(PeekMessage(&msg,NULL,0,0,PM_REMOVE)) // Handle messages from the OS
		{
			if(msg.message == WM_QUIT)
				break;
			
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
		else if(LockFrameRate()) // If it is time to draw, do so
		{
			g3D->begin(); // Begin the scene
			g3D->clear(); // Clear the Z-buffer
			
			gTexture.select(); // Select the texture to be used
			
			// Render the textured quad
			gQuad.render();
			
			g3D->end(); // End the scene
		}
		else
			Sleep(1); // Give the OS a slice of time to process other things
	
	} // end of while(1)

	g3D->deinit(); // Free up CD3DObj
	UnregisterClass(kClassName, hinstance); // Free up WNDCLASSEX
	    return EXIT_SUCCESS; // Application was a success
}