title: Drawing a full screen Quad?
body: <p>What's wrong with this:</p>
  
  <pre><code>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);
  </code></pre>
  
  <p>if i try to render this, i don't see anything. in the vertex shader i use these vertex positions without transforming them.</p>