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Dark GDK / UV mapping coords quick question...

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WLGfx
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Posted: 10th Aug 2011 00:33
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UV coords go from 0.0 to 1.0 normally. If I changed a U or V value to 2.0 would this double the texture over the surface?

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Hassan
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Posted: 10th Aug 2011 02:06 Edited at: 10th Aug 2011 02:10
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if you are sampling with Wrap address mode, yes, you will have a tile, and if you sample with the Mirror address mode, you will have a tile, but it's mirrored in every tile, for the Clamp mode, all coordinates outside 0,1 range will be wrapped to be either 0 or 1, for the border address mode, coordinates outside 0,1 range will have a color specified as the border color in the sampler, though, i only know about Direct3D11 samplers, but i believe it's the same thing in Direct3D9, either have it defined in a the shader, or (Direct3D9 only) do it using the IDirect3DDevice9

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WLGfx
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Posted: 10th Aug 2011 02:52
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@Hassan - Thank you... Been googling but nothing as clear as you've put it...

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