simple:
effect.BeginPass(1);
effect.SetValue("back_Tex", backTex);
effect.SetValue("ViewProjection", device.Transform.World * device.Transform.View * device.Transform.Projection);
mainMesh.DrawSubset(0);
effect.EndPass();
dont work :(
Ok,
you have to do some steps:
1) Ensure that you texture are render targets:
LPDIRECT3DTEXTURE9 myRenderTexture;
D3DXCreateTexture(m_pd3dDevice, xres, yres, 1, D3DUSAGE_RENDERTARGET, D3DFMT_X8R8G8B8, D3DPOOL_DEFAULT, &myRenderTexture);
Verify that your video card can use the format X8R8G8B8 as render target (use GetCaps). Some video cards need other formats like D3DFMT_A8R8G8B8.
2) Get the surface from your render texture:
LPDIRECT3DSURFACE9 texSurf;
myRenderTexture->GetSurfaceLevel(0, &texSurf);
3) Set the surface as render target, but BEFORE save your original target! :
LPDIRECT3DSURFACE9 oldTarget;
m_pd3dDevice->GetRenderTarget(0, &oldTarget);
m_pd3dDevice->SetRenderTarget(0, texSurf);
4) Now you call your drawing function.
5) Restore your render target:
m_pd3dDevice->SetRenderTarget(0, oldTarget);
You can use multiple render target as well.
Hope this help,
Happy coding!
AGPX
