dx11 and texture projection...
2 replies to this topic
Posted 14 January 2012 - 10:48 PM
I'm in the process of moving from dx9 to 11 and in my old shaders i was able to use tex2dproj to project a texture to a mesh. Does anyone know how this is now done in shader model 5? thanks for any hints in the right direction to go.
Posted 14 January 2012 - 11:40 PM
I don't believe there is a specific function for projective texture lookup now. Instead, you must do the divide by w yourself and then do a regular sample.
// DX9 tex2Dproj(sampler, uvw); // DX10/11 float2 uv = uvw.xy / uvw.w; texture.Sample(sampler, uv);
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Posted 15 January 2012 - 12:32 AM
That worked a treat! now I understand, I really appreciate the help with this, thank you!
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