Rendering artifacts

Newtek Lightwave 3D (exporter developed by holocube, Integrated Plugin developed by juanjgon)

Moderator: juanjgon

pixym
Licensed Customer
Posts: 597
Joined: Thu Jan 21, 2010 4:27 pm
Location: French West Indies

Hi,
Have you tried to change the ray epsilon value ?
Work Station : MB ASUS X299-Pro/SE - Intel i9 7980XE (2,6ghz 18 cores / 36 threads) - Ram 64GB - RTX4090 + RTX3090 - Win10 64
NET RENDER : MB ASUS P9X79 - Intel i7 - Ram 16GB - Two RTX 3080 TI - Win 10 64
tomas.base
Licensed Customer
Posts: 9
Joined: Tue Jun 02, 2020 1:51 pm
Location: Czech Republic

I would especially recommend quality geometry / meshflow. Much depends on the triangulation and order of the vertices. If the input geometry has 4 verticles / poly and good meshflow for proper automatic triangulation in the OCTANE core (vertex order), then very small bump and normal values are not a problem (+ higher SUB-DIV level). If the geometry is not good, smoothing will stop working on the reflections.

I attach two identical objects, one is triangulated in LW and the other is not.

After automatic triangulation (see oct pass wirefrane) they look almost the same at first glance, the difference is huge.

In some cases, it is better to do triangulation (if the model is not suitable for SUB-DIV) in LW. Sometimes the automatic triangulation of the Octane core is worse on more complex LOW-poly objects and it is better to triangulate in advance in LW. It's individual. The OCT and LW algorithm is different. And a lot depends on the order of the vertices.

Tomas
Attachments
IPR
IPR
octane wireframe pass
octane wireframe pass
source model
source model
pixym
Licensed Customer
Posts: 597
Joined: Thu Jan 21, 2010 4:27 pm
Location: French West Indies

Hi, thanks for this information.
Work Station : MB ASUS X299-Pro/SE - Intel i9 7980XE (2,6ghz 18 cores / 36 threads) - Ram 64GB - RTX4090 + RTX3090 - Win10 64
NET RENDER : MB ASUS P9X79 - Intel i7 - Ram 16GB - Two RTX 3080 TI - Win 10 64
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