Hello!, I'm wanting to use grunge/scratch/fingerprint texture maps to break up the Specular Roughness in the aiStandard Shader, similar to this:
I’ve been doing some tests, but not getting the expected results. The texture map i’m using is a 16 bit Grayscale image. I also converted it to an RGB image and connected the R channel to the Specular Roughness, but still not getting the expected results. Is there something obvious i’m missing?
First image is basic shader with some Roughness dialed in:
Second image is with the R channel of the texture map assigned to Specular Roughness. I'm not getting the desired results.
Any suggestions fully appreciated!
Thx,
-Steve
I tried with a few random textures and they all affected the specular roughness in my test scene.
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