I have someone who wants to work with pure texturing. Instead of them having to get full $$ 3d programs just so they can see their work realtime while working in PS, I wanted to see about a free program to give them a choice instead.
Again, something thats very simple, that has a REALTIME update of textures from files. Maybe even as far as accepting photoshop psd to make it easy.
Can import obj or 3ds files.
Also not neccessary, but it could help them with like specular and alpha maps, but a 3D viewpoint that can show different channels of input.
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they update textures automatically, support alphas, support an ass load of file formats (psd, obj and 3ds included), and are shareware. deep replaced 3d ages ago, but i still use it.
That'd be awesome, and probably worth turning into a commercial product.
http://www.unwrap3d.com/index.aspx
http://www.quick3d.org/
I also installed this one a while ago while searching for a good .x file viewer (stayed with deep exploration in the end anyway). Nice simple shareware viewer from what I've seen - though I haven't really tested it with textured stuff as far as realtime updates go.
http://www.softimage.com/products/pipeline/ftk/v363/