DrawPrimitive画图 没有颜色的问题

主要代码如下： 1 顶点结构 struct CUSTOMVERTEX { FLOAT x, y, z; DWORD color; }; #define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE) //顶点格式 2 顶点buf创建，填充 CUSTOMVERTEX vertices[] = { { 1.0f, 3.0f, 0.0f, 0xffff0000, }, { 2.0f, 1.0f, 0.0f, 0xff00ff00, }, { 1.5f, 0.2f, 0.0f, 0xff0000ff, }, }; //创建顶点缓冲区 if( FAILED( g_pd3dDevice->CreateVertexBuffer( 3*sizeof(CUSTOMVERTEX), 0, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &g_pVB, NULL ) ) ) { return E_FAIL; } //填充顶点缓冲区 VOID* pVertices; if( FAILED( g_pVB->Lock( 0, sizeof(vertices), (void**)&pVertices, 0 ) ) ) return E_FAIL; memcpy( pVertices, vertices, sizeof(vertices) ); g_pVB->Unlock(); 3 渲染环境的设置和绘制 //清空后台缓冲区 g_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(45, 50, 170), 1.0f, 0 ); //开始在后台缓冲区绘制图形 if( SUCCEEDED( g_pd3dDevice->BeginScene() ) ) { g_pd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CCW); //在后台缓冲区绘制图形 g_pd3dDevice->SetStreamSource( 0, g_pVB, 0, sizeof(CUSTOMVERTEX) ); g_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX ); g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLELIST, 0, 1 ); //结束在后台缓冲区绘制图形 g_pd3dDevice->EndScene(); } //将在后台缓冲区绘制的图形提交到前台缓冲区显示 g_pd3dDevice->Present( NULL, NULL, NULL, NULL ); ============================================================================== D3DFVF_XYZ默认的用户区中心坐标是（0，0），而D3DFVF_XYZRHW是左上角为（0，0） 用D3DFVF_XYZ默认的为非光照的，而D3DFVF_XYZRHW是高洛德光照。 当使用D3DFVF_XYZ时，要设置渲染状态： g_pd3dDevice->SetRenderState(D3DRS_LIGHTING,FALSE) 而且要设置观察矩阵和投影矩阵，例如： D3DXMATRIX matProj; D3DXMATRIX matView; // Create and set the projection matrix D3DXMatrixPerspectiveFovLH(&matProj, D3DX_PI/4.0f, 1.33333f, 1.0f, 1000.0f); g_pd3dDevice->SetTransform(D3DTS_PROJECTION, &matProj); // Create and set the view matrix D3DXMatrixLookAtLH(&matView, \ &D3DXVECTOR3(0.0f, 0.0f, -500.0f), \ &D3DXVECTOR3(0.0f, 0.0f, 0.0f), \ &D3DXVECTOR3(0.0f, 1.0f, 0.0f)); g_pd3dDevice->SetTransform(D3DTS_VIEW, &matView); 否则没有渲染结果。