Texture UVW... What's W?
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| I'm certainly familiar with how texture UV data works... but what effect does the W value have? I've come across this before in other applications, but never found any clear explanation. ...So what's it do??? |
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| W does nothing in Blitz. It's just listed for future expansion. A texture as you know it is 2D. W is for 3D textures. 3D textures aren't used much yet except in 3D rendering packages. Sometimes the W will be used to combine a 2D and a 1D texture to make a pseudo 3D texture, for lighting for example, but again that's not something you can do in Blitz. |
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| I had a feeling that'd be the case. Thanks for the info! |
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| There's also this loose relation: xyz = uvw, but like Mr. S said usually we use and talk about UV-mapping since W is unused. |
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| W is listed for a future expansion that would maybe never come ;) |
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| http://www.google.co.uk/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&oi=defmore&q=define:w |
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