Weird artifacts from the bump map

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erbe
Licensed Customer
Posts: 9
Joined: Thu Nov 17, 2016 10:23 am

Hello all,

when I use the bump map channel from a Material I have some Weird artifacts in the texture.
I use Octane 2024.1.2 R4 and Cinema 4D 2024.

Regards,

Jochen
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Screenshot 2025-06-27 103941.jpg
skientia
Licensed Customer
Posts: 254
Joined: Tue Mar 12, 2024 1:50 am
Contact:

For anyone to answer and possibly provide a solution, more information is necessary.
It's also difficult to decipher the rendered image due to the crop and pixelization this close.
The "artifacts" are reminiscent to image compression algorithms.

- what's the mesh it is applied to? (can the mesh topology be causing such issue, as well as its scale)
- what's the file format and is has it ever been converted? (is it overly compressed, lossy)
- what's the material setup? (the less nodes, the less complications)
- what are the complete render settings? (unlikely to be the root cause but always welcomed)

In addition to the report-guidelines recommendations.
erbe
Licensed Customer
Posts: 9
Joined: Thu Nov 17, 2016 10:23 am

I see this artifacts also in the Ocane Live Viewer window.
Attachments
Screenshot 2025-06-30 080432.jpg
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bepeg4d
Octane Guru
Posts: 10340
Joined: Wed Jun 02, 2010 6:02 am
Location: Italy
Contact:

Hi,
probably you need to highly reduce the "Bump Height" value to match the geometry scale.
Please note that the "Bump Height" value works in meters.

ciao,
Beppe
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