float 4x4 view_proj_matrix; float4 vs_main( float4 inPos:POSITION ) { return mul( inPos , view_proj_matrix ); } float4 ps_main( float4 inDiffuse : COLOR0 ) : COLOR0 { float4 color = float4(0,0,0,0); color.r = 1.0; color.a = 1.0; return color; }