声明：
//Mesh objects 网格对象
LPD3DXMESH g_teapot=NULL; LPD3DXMESH g_cube=NULL;LPD3DXMESH g_sphere=NULL;//球体LPD3DXMESH g_torus=NULL;//圆环bool InitializeObjects()
{ // Set the projection matrix. D3DXMatrixPerspectiveFovLH(&g_projection, 45.0f, WINDOW_WIDTH/WINDOW_HEIGHT, 0.1f, 1000.0f);g_D3DDevice->SetTransform(D3DTS_PROJECTION, &g_projection);
// Set default rendering states. 关闭光照
g_D3DDevice->SetRenderState(D3DRS_LIGHTING, FALSE); //Create the objects 创建茶壶 if(FAILED(D3DXCreateTeapot(g_D3DDevice,&g_teapot,NULL))) return false; //创建盒子 if(FAILED(D3DXCreateBox(g_D3DDevice,2,2,2,&g_cube,NULL))) return false; //创建球体 if(FAILED(D3DXCreateSphere(g_D3DDevice,1.5,25,25, &g_sphere,NULL))) return false; //创建圆环 if(FAILED(D3DXCreateTorus(g_D3DDevice,0.5f,1.2f,25,25, &g_torus,NULL))) return false;// Define camera information.
D3DXVECTOR3 cameraPos(0.0f, 0.0f, -8.0f);//摄像机的位置 D3DXVECTOR3 lookAtPos(0.0f, 0.0f, 0.0f); //观察点 D3DXVECTOR3 upDir(0.0f, 1.0f, 0.0f); //以上方向为准// Build view matrix. 创建视图矩阵
D3DXMatrixLookAtLH(&g_ViewMatrix, &cameraPos, &lookAtPos, &upDir);return true;
}void RenderScene()
{ // Clear the back buffer.清空后台缓存为指定色 g_D3DDevice->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,0), 1.0f, 0);// Begin the scene. Start rendering. 启动绘制
g_D3DDevice->BeginScene();// Apply the view (camera).从世界空间到视图空间的视图转换
g_D3DDevice->SetTransform(D3DTS_VIEW, &g_ViewMatrix);//Draw teapot
D3DXMatrixTranslation(&g_WorldMatrix,2.0f,-2.0,0.0f);//平移矩阵 g_D3DDevice->SetTransform(D3DTS_WORLD,&g_WorldMatrix);//从模型空间到世界空间的世界转换 g_teapot->DrawSubset(0); //绘制茶壶// Draw Cube.
D3DXMatrixTranslation(&g_WorldMatrix, -2.0f, -2.0, 0.0f); // 平移矩阵 g_D3DDevice->SetTransform(D3DTS_WORLD, &g_WorldMatrix); // 从模型空间到世界空间的世界转换 g_cube->DrawSubset(0); // 绘制盒子// Draw Sphere.
D3DXMatrixTranslation(&g_WorldMatrix, 2.0f, 2.0, 0.0f); // 平移矩阵 g_D3DDevice->SetTransform(D3DTS_WORLD, &g_WorldMatrix); // 从模型空间到世界空间的世界转换 g_sphere->DrawSubset(0); // 绘制球体// Draw Torus.
D3DXMatrixTranslation(&g_WorldMatrix, -2.0f, 2.0, 0.0f); // 平移矩阵 g_D3DDevice->SetTransform(D3DTS_WORLD, &g_WorldMatrix); // 从模型空间到世界空间的世界转换 g_torus->DrawSubset(0); // 绘制圆环// End the scene. Stop rendering.
g_D3DDevice->EndScene();// Display the scene.
g_D3DDevice->Present(NULL, NULL, NULL, NULL);} void Shutdown(){ if(g_D3DDevice != NULL) g_D3DDevice->Release(); if(g_D3D != NULL) g_D3D->Release();if(g_teapot != NULL) { g_teapot->Release(); g_teapot = NULL; }
if(g_cube != NULL) { g_cube->Release(); g_cube = NULL; } if(g_sphere != NULL) { g_sphere->Release(); g_sphere = NULL; } if(g_torus != NULL) { g_torus->Release(); g_torus = NULL; }// g_D3DDevice = NULL;
//g_D3D = NULL;}