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Old 21-03-2011, 05:58 AM   #1
bullet1968
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Default Randomizing textures

Ok this is probably not possible....is there a way to randomize textures either in PS or Maya for walls and courtyards etc etc...I am doing a Warhammer model for a mate (yes he is a geek and still plays with toys)...now the courtyard is for the final scene..as I havent finished the model yet. Look at the bricks and the walls...they are identical and look computer generated....I want to randomize it and make it look realistic...any suggestions besides doing it the old way...by hand..LOL

cheers bullet
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Old 21-03-2011, 07:50 AM   #2
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Have no idea, but your model looks great! Still need to learn hard-surface modeling
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Old 21-03-2011, 09:03 AM   #3
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LOL thanks mate
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Old 21-03-2011, 09:57 AM   #4
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A good way to make things appear less repeated is to use masks to belend between different versions of the same texture or to overlay dirt maps or other textures on top.

You can use the mix8 layered shader (if your using mental ray)
http://www.creativecrash.com/maya/do...-for-mentalray
or mib_color_mix.. however if your not using mental ray shaders maya maya layered texture works fine.
Here is a quick example:

Using a fractal texture which is layered over the orignal grid using another texture as the alpha will give you some variation over the entire surface. In this case I also blended between this result and the original using a ramp so for example if you only want the bottom of your wall to be dirty you could achive an effect this way.

I know its rough but hope you get the picture. There are many ways to blend and effect textures, color gain is really useful, to stack up results, ramps are nice to control effects over a surface and the math nodes and surf luminance nodes can be used to drive textures based on lighting contributions etc.
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Old 21-03-2011, 10:26 AM   #5
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Thanks Laurie...I will look inot that man...good chap. I guess I should have to UV the wall as a single entity...I was for a quick look...ie auto UV and apply texture. I will certainly write this down and when it comes to do the scene proper apply it.

Thanks mate bullet

EDIT: DL'd mate...cheers for that
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Old 21-03-2011, 10:32 AM   #6
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LOL I just had a thought...would be nice to have a brick/block tumbler...like the ones they put green bricks into...and tumble them to give random deformation...hhhhhhmmmmmmmm

EDIT: havent had time Laurie...but did it the cheats way for now so I can gauge what I want later..I will leave it for now and finish the model...then have a crack at that mix8 man.
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