Zeichnen eines Vollbild-Quad?

Question

Was ist los mit diesem:

pVertexBuffer[0].Position = D3DXVECTOR3(0.0f,0.0f,0.0f);
pVertexBuffer[0].TexCoord = D3DXVECTOR2(0.0f,0.0f);

pVertexBuffer[1].Position = D3DXVECTOR3(m_ScreenResolutionX,0.0f,0.0f);
pVertexBuffer[1].TexCoord = D3DXVECTOR2(1.0f,0.0f);

pVertexBuffer[2].Position = D3DXVECTOR3(0.0f,m_ScreenResolutionY,0.0f);
pVertexBuffer[2].TexCoord = D3DXVECTOR2(0.0f,1.0f);

pVertexBuffer[3].Position = D3DXVECTOR3(0.0f,m_ScreenResolutionY,0.0f);
pVertexBuffer[3].TexCoord = D3DXVECTOR2(0.0f,1.0f);

pVertexBuffer[4].Position = D3DXVECTOR3(m_ScreenResolutionX,0.0f,0.0f);
pVertexBuffer[4].TexCoord = D3DXVECTOR2(1.0f,0.0f);

pVertexBuffer[5].Position = D3DXVECTOR3(m_ScreenResolutionX,m_ScreenResolutionY,0.0f);
pVertexBuffer[5].TexCoord = D3DXVECTOR2(1.0f,1.0f);

Wenn ich versuche, dies zu machen, ich sehe nichts. in dem Vertex-Shader verwende ich diese Eckpunktpositionen ohne sie zu verwandeln.

Answer 1

Vertexshader Ausgangs Vertices in homogenen Koordinaten Bildschirm nicht; sie sind in der Regel unabhängige Bildschirmauflösung. Mit anderen Worten, sollten Sie Ausgabekoordinaten von (-1, -1,0) bis (1, 1, 0).