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mike74

3d textures

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Does anyone know a good place to find true 3d textures? (i.e. textures that are 100x100x100) Are there very many of these out there? And, if so, how do people create them? Mike http://www.coolgroups.com/forum

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i opened some of 3d textures in photoshop, and they have 2d images side by side. but i am not sure if you are looking for that, and dont know the road of their construction..
maybe this helps: http://www.bitbrush.com/textures.html

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3d textures come from either volumetric data or would have been procedurally generated. What use do you have for them?

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Those aren't 3d.

Mike
http://www.coolgroups.com/forum

Quote:
Original post by stroma
i opened some of 3d textures in photoshop, and they have 2d images side by side. but i am not sure if you are looking for that, and dont know the road of their construction..
maybe this helps: http://www.bitbrush.com/textures.html


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Getting the texture coordinates without distortion is probably too difficult on a 2d model.

Mike
http://www.coolgroups.com/forum

Quote:
Original post by GodBeastX
I don't see the point of using 3d textures for rocks. Why not have 3d model with 2d texture on it?


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Hmm, I hope you don't expect to find photographic 3d textures of rock...
It's hard to take pictures in there... they'd have to slice the sucker and they'd get (tada) a series of 2d images (perhaps side by side in photoshop)

Besides that, there's not much texture info on the inside of a rock... Some are just kinda... gray.
Most of the detail is going to come from (a little bit of that base color, but mainly from) staining and growth, chipping, etc on the rock itself (ie, surface detail.)

If you just want a 3d texture to dip your mesh into, check out volumetric textures (like Perlin Noise)
Really though, you'd be best off to somehow procedurally texture these things, or find some 2d photo textures and hand texture them.

-Michael g.

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"Those aren't 3d"
. i didn't examine, just they says so :)

"Getting the texture coordinates without distortion is probably too difficult on a 2d model. "
. that is not a big problem for modellers using todays modelling aplications. they have great texture coord. generate algos and todays game modellers uses these techics. e.g. look up doom^s rock models. they are great.
3D textures are really slow to show. they are used in medical applications, like MR visualition. so you cant make a swift game with todays hardware even if you will just show a 3d textured rock. maybe used in renders. and i think, this is not reasonable. ( besides,i dont like 3d textures quality, try out some demos and see the results )
edit : you may use normalmaps and heightmaps to get more "3D" effect faster..

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Why would 3d textures be slow? I'm not talking about filling the volume of anything - just getting the surface colors from a 3d texture. Can you point me to some of those demos?

Mike
http://www.coolgroups.com/forum

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