Question

I need to draw lines using DrawPrimitiveUP and I need it to use the color value from my defined structure.

Important snippets from the code:

struct PointVertexColor
{
 float x, y, z;   // Position
 DWORD color;   //Colour
};

#define D3DFVF_PointVertexColor ( D3DFVF_XYZ | D3DFVF_DIFFUSE ) 

PointVertexColor myLines[1024];

device->DrawPrimitiveUP( D3DPT_LINELIST, myLinesCount, myLines, sizeof( PointVertexColor ) );

I have a pointlight set, lighting enabled and ambient lighting also.

Problem is that if I set up a material it uses the materials color and not the one from my data struct. How do I set it up so it uses the DWORD color and then set it back to use material for later code ?

Answer 1

The problem was obvious if you know it – you can’t use vertex color and lighting at the same time. The solution is to disable lighting for that part of the code and then re-enable it later.

Hope it helps someone with the same question.