Wood grain, realistic

[Kevin Mather]

Recently I’ve had the urge to create a wooden bowl. Sculpting is quite trivial. There are various ways to apply a wood-grain texture, but is there any way to make the grain variations accurate (i.e. as if carved from a single wood block) ? It doesn’t seem possible with the texture mapping/painting techniques I’m familiar with. Tutorials I’ve found on carving just apply displacement to a surface pattern.  I may need to put on my “problem-solving” hat.  One nice reference:

[Jonathan Lampel]

Hey Kevin, you could try placing one seam around the rim and then unwrapping it like this: 

The two circular islands are laid directly on top of each other. Is that close enough? 

[Kevin Mather]

Hmm. “Project from view” (top/bottom) is pretty close to the desired, if the bowl is convex and not too steep. (If the rim is smaller than the width, things get tricky.) I tried to visualize it “procedurally” and got something like the following.

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