Making rock - Without bad UV warping

odium · Jul 2005

Hey guys.

I'm in the middle of making some map models for my level, and rock has come into play. I have quite a lrage section that will be rock, however when i do the model I get quite a bit of stretching on the texture due to odd UV points.

Does anybody have any tips for making better rock models that don't map quite so horrid?

Michael Knubben · Jul 2005

Maybe this tutorial will be helpfull:
http://waylon-art.com/tutorial/tutorial_1.html

LiveWire · Jul 2005

three ways to avoid seems but might still get stretching depending on your unwrap:

1: if you have a texture that tiles in four directios you can map a cube then subdivide it and model from there.

2: planar map your mesh from one angle the fix up any stretching around the edges. the texture will be mirrored on each side but you shouldn't notice

3: use a precedual texture and bake it to the unwrap.

Rhinokey · Jul 2005

i've made a million rocks for games over the years, usualy i jsut make a good tiling rock texture, and sometimes i can just box map the rock and it will be fine, may need to move and rotate soem of the chunks to get rid of obvious seams, now days i would jsut break it into a few chunks and relax the uvs, i would never bother with trying to lay out uv's on a texture sheet unless the rock was verry specialized, if your engine suports texture blending you can blend a mossty texture onto the object in certain places,

LiveWire · Jul 2005

for most organic or natural things texture stretching can help it look more natural and more random. depends on the detail of the texture though, when i say stretching though i don't mean great big smears across faces

odium · Jul 2005

ITs for a per pixel based engine so obviously local maps and specular. The local stage is what sticks out the most however when its warped.

jRocket · Jul 2005

Unfortunately there is no way to uv a spherical object without seam or stretching. Consider hiding the seams or stretches in a place where the viewer will not see them.. like under the rock. If you have a 3d paint program you can attempt to go back and fix these problem areas in 3d.

Making rock - Without bad UV warping

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