This is quite simple really but I hadn't figured it out until now.

this is a red-->yellow and green-->blue gradient within another gradient. I picked garish colors to make the testing easier but you can change the attribute nodes to anything else.

The start and end for each gradient is quite close to make a sudden transition from one color to the next.

The material assumes 15cm from bottom to top of the pattern but once you apply the material to your model you can translate, rotate and scale it to fit any other size or direction.

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Update: Here's an ultra nested mat that does seven colors for the full ROY G BIV spectrum

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Now I can finally make that gay teapot that has eluded me for all these many years.

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Here's an example of scaling it onto a larger character by varying the scale Y property once the material is on the model. If you use a Shift-Q render-lock box you can watch the material change as you change the property.

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Thank's Rob that looks prety usefull,like the teapot btw

yes thank you

Thanks!

Seven-stripe version added at top post.

Thanks!

Hi Robert

Any chance you could modify your rainbow material to be more evenly distributed for a character 6' tall? I cant seem to make heads or tails of how to easily adjust materials and get an intentional result. Currently your material just puts stripes on the feet.

I'm not sure that the God-fearing folks in Utah would appreciate the effort.

After you drop the material on a model you can alter the scale properties to stretch it along one axis and alter the translate property to move it up or down.

It's best to alter those in shortcut to the material that is in the model rather than in the material itself although either will get a result.


Edit: I've added a screencap at the top

Thanks that helped.