Author Topic: Sandpaper/Stone Material  (Read 4774 times)

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Offline Hawks89

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Sandpaper/Stone Material
« on: January 21, 2017, 01:40:20 pm »
I regularly don't work with stones. Does anyone have suggestions for the creation of Sandpaper or a stone look similar to the picture. it is actual a diamond honing stick used for polishing

Offline TpwUK

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Re: Sandpaper/Stone Material
« Reply #1 on: January 21, 2017, 02:37:29 pm »
Fractal noise applied as a bump and scaled to suit. Your sample picture looks pretty flat so suggests a Diffuse material coloured to suit.

Martin

Offline DMerz III

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Re: Sandpaper/Stone Material
« Reply #2 on: January 23, 2017, 12:28:01 pm »
Also if you're familiar with the material graph editor, try using the procedural noise in the color/diffuse channel, and tweaking the colors to be slightly different but similar in hue, this will give you a nice variation. Apologies if this tip makes zero sense.

This example was made using a plastic shader type with, noise in the diffuse and specular channels as well as in the roughness and bump channels.
(turn off sync so you can change each noise texture independently).

« Last Edit: January 23, 2017, 01:00:18 pm by dmerziii »

Offline Hawks89

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Re: Sandpaper/Stone Material
« Reply #3 on: January 23, 2017, 01:47:00 pm »
dmerziii

looks great! thanks for the advice.

Offline DMerz III

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Re: Sandpaper/Stone Material
« Reply #4 on: January 23, 2017, 02:59:45 pm »
No problem! Also I should mention, I bumped up the IOR a bit higher than usual (I think I went with 3). This is more or less a shortcut to getting a bit more "specular" look in the "grain". There's probably better ways to go about this, but in a quick example, just wanted to show what's possible with the noise procedural!