hard edges with bump Tweet

[AdrienG]

Hi everybody,
Simple noobie question i guess :
Once i plug a proc noise in bump it bring me hard edge.
How to fix that ? cheers

[BK]

Hi everybody,
Simple noobie question i guess :
Once i plug a proc noise in bump it bring me hard edge.
How to fix that ? cheers

Hi AdrienG,

Thank you so much for sharing the rendered images.
Would you please try using the **OpenSubD level** from the Attribute Editor>Octane rollout and see if it goes away?

cheers

[AdrienG]

Hi thanks for the feedback. i tried that but it simply subdivide the geo which i try to avoid. I ve got a mesh to render which is not smooth friendly because imported from a step file..
It looks like it does the same with normals maps..
It feels very weird, i ve had used redshift (and other renderers before that) and i didnt have this kind of situation. Is that because of the light behaviour and the lowpoly angle between faces?

[BK]

Hi thanks for the feedback. i tried that but it simply subdivide the geo which i try to avoid. I ve got a mesh to render which is not smooth friendly because imported from a step file..
It looks like it does the same with normals maps..
It feels very weird, i ve had used redshift (and other renderers before that) and i didnt have this kind of situation. Is that because of the light behaviour and the lowpoly angle between faces?

Hi AdrienG,
Thanks so much for clarifying.
The issue might be related to mesh edge. Would you please try "Soften Edge" operation from Mesh display menu and see if it resolve?
If not, then please share the scene for us to investigate!

cheers

[AdrienG]

i need help for that because i cant figure out whats the issue, to me it looks like a plug in dev problem, hopefully you ll tell me i m wrong.
Whatever i do with my normals (soften/lock unlock/vertex/faces...) the bump (a basic oct noise) is bringing that hard edge look.
I share another render comparaison.
plus, a very basic scene with a torus if you want to try.
Cheers

[AdrienG]

edit : cant send *.ma here but the scene is the most simple, torus with noise bump : impossible to get rid of thats edges, to smoooth them out....

[elsksa]

I don't use Octane for Maya. The questions that come to me are:

• could it be caused by a lack of Octane Object "tag"/properties?
• is the material-level "smooth" option (checkbox) enabled?
• does an Alembic (or ORBX) export to Standalone showcases the same issue?
• does it occur with normal or displacement?

[BK]

edit : cant send *.ma here but the scene is the most simple, torus with noise bump : impossible to get rid of thats edges, to smoooth them out....

Hi Adrien,

Please try elsksa's suggestion also have you tried attaching the OctaneRound Edge node?
If it still does not work then please zip the .ma and upload it?

cheers

[astor]

Maybe your model size is too big
try it. scale 1=>0.1

[AdrienG]

Scene scale didnt bring much and to my mind thats a dangerous setting to play with.
Nevertheless, i found this post which talks about the same issue, lowpoly/blocky self shadows :
https://render.otoy.com/forum/viewtopic.php?f=32&t=69511
adding a slight displacement works great (dont forget to use the texture baking node if you use proc noise)
checking on the material shadow path term. seems to work too