g_pd3dDevice->SetRenderState( D3DRS_POINTSPRITEENABLE, TRUE );
g_pd3dDevice->SetRenderState( D3DRS_POINTSCALEENABLE, TRUE );
g_pd3dDevice->SetRenderState( D3DRS_POINTSIZE, FtoDW(1.0) );
g_pd3dDevice->SetRenderState( D3DRS_POINTSIZE_MIN, FtoDW(1.0f) ); g_pd3dDevice->SetRenderState( D3DRS_POINTSCALE_A, FtoDW(0.0f) );
g_pd3dDevice->SetRenderState( D3DRS_POINTSCALE_B, FtoDW(0.0f) );
g_pd3dDevice->SetRenderState( D3DRS_POINTSCALE_C, FtoDW(1.0f) );
SetRenderStates for Points
Author
I have read through the SDK documents, I know in order to use point sprites, I have to set the following render states:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/point_sprites.asp
You can find details of how they interact with each other in the SDK docs:
DirectX Graphics ->
Direct3D 9 ->
Programming Guide ->
Advanced Topics ->
Vertex Pipeline ->
Point Sprites ->
"Point Size Computations"
A is the constant factor, B is the linear factor and C is the quadratic factor that combined (see above) let you control the curve used to scale the point sprites.
DirectX Graphics ->
Direct3D 9 ->
Programming Guide ->
Advanced Topics ->
Vertex Pipeline ->
Point Sprites ->
"Point Size Computations"
A is the constant factor, B is the linear factor and C is the quadratic factor that combined (see above) let you control the curve used to scale the point sprites.
This topic is closed to new replies.
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