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acid2

Projective texturing with HLSL?

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acid2    451
Hi, I'm quite new to HLSL. But how does this work? I want to be able to project a texture onto a mesh, generally. I see that HLSL has tex2Dproj etc - but don't totally udnerstnad. Someone please enlighten me!

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acid2    451
No, I understand HLSL - what I don't understand is that actual use of tex2Dproj, however - yea i am searching MSDN for some help on that.

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EvilDecl81    360
Quote:
Original post by acid2
Hi,

I'm quite new to HLSL. But how does this work? I want to be able to project a texture onto a mesh, generally. I see that HLSL has tex2Dproj etc - but don't totally udnerstnad.

Someone please enlighten me!


tex2Dproj takes a 4 vector and divides the coordinates by the w component. The third component is ignored for 2D textures.

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