Dirt and bump/normal maps

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benjanowitz
Licensed Customer
Posts: 5
Joined: Mon Sep 18, 2017 6:50 pm

Hey guys,
I can't figure out how to achieve this effect in octane:
medium_blobs_08_i1_0002-1.jpg
medium_blobs_18_close.jpg
The only thing I get with the dirt node is having it on the edges of the surface but not on the normal or bumps crevices:
Cattura.JPG
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bepeg4d
Octane Guru
Posts: 10461
Joined: Wed Jun 02, 2010 6:02 am
Location: Italy
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Hi,
you need to use Octane displacement, or the c4d displace deformer, to make the dirt work as expected, here is an example with Octane Displacement and an Universal material:
universaldisplace.c4d.zip
(80.08 KiB) Downloaded 205 times
2AA0D52B-EBD0-4348-927C-E5639EEC2524.jpeg
ciao Beppe
benjanowitz
Licensed Customer
Posts: 5
Joined: Mon Sep 18, 2017 6:50 pm

Okay, as expected...displace only.
Question: why are you using the universal material?
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bepeg4d
Octane Guru
Posts: 10461
Joined: Wed Jun 02, 2010 6:02 am
Location: Italy
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Just for the simplicity to have all the possibility in one unique material node, without mixing materials.
ciao Beppe
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grimm
Licensed Customer
Posts: 1332
Joined: Wed Jan 27, 2010 8:11 pm
Location: Spokane, Washington, USA

Another possibility is to use a curvature map (you would have to generate it externally with Substance, or 3D-Coat, etc.) and use it to control the mix of materials.
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