Can UVW be considered the standard for 3D games as opposed to UV? If not, why?
There doesn't seem to be as much information on the subject as I'd hoped.
Are UVW coordinates the standard for 3d games?
It is always hard to tell if some technique is considered as standard. I think that most games still use UV instead of UVW. It depends on the used engine and most engines will most probably only use the W coord for 3d textures.
What would be the benefit of using the additional W coord and how does it hold up to memory and bandwidth consumption ?
What would be the benefit of using the additional W coord and how does it hold up to memory and bandwidth consumption ?
I think the W is used for trapezoids: low-poly sphere texturing at the poles. Skydomes. But it's not essential to regular models.
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Seems that is a definitive no. Perhaps if volumetric textures ever begin to replace 2D textures things could change. Right now they seem awfully useless.
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