OTOY Forums

Replacing assets/textures with the built in C4D "Project Asset Inspector" (Window-Project Asset Inspector) is broken.

After inspecting the "Octane Texture Manager" it looks like it only replaces the "Suggested Path" leaving the "Real Path" intact with the wrong path.

I'm using Cinema 4D R25

Did you try selecting the Path list in the PAI and choosing Asset > Globalize Filenames and then refreshing the Octane Texture Manager? Make sure you do this on a copy of your scene file. This usually does the trick...

Hi There,

The clipping material unfortunately produces lots of artifacts.
Especially with CAD objects (maybe because of its unclean topology - which I cannot change.)



Any options/settings to get rid of them, or is it,
because its still in beta?

thanks
Mike

Mike, why can't you clean up that geometry? Bad geometry is at the heart of most shading problems. There is only so much that a rendering engine can do in those cases, and the rest is up to you. As they say, "garbage in, garbage out."

Hi jayroth,

Have almost feared something like this!
For smany very complex CAD models I have no chance to clean them all up!

Even the C4D Boole fails in some places.

regards
Mike

Hi, Aoktar
After bringing some 2020.2 projects into 2021.1 RC3(r2), I noticed some shaders have a different gamma/exposure compared to the older engine. Am I missing something?
Regards,

PS: Have just realized, Color space in those cases are set to <<non-color data>>. After switching back to sRGB it got like before. Any way to set sRGB as default?? In the cases the shader has no issues I noticed a <<Linear sRGB + legacy gamma>>, so why doesn't it upgrades equally to all image cases?
Regards,

Mike, I have had good luck with Quad Remesher (a plugin) and also converting into a Volume Mesh object. Much work to be sure, but these tools can resolve many different issues.

Sadly, the tesselators in CAD applications are really stuck in the 1990's, before subdivision surfaces became commonplace.

miohn wrote:Hi There,

The clipping material unfortunately produces lots of artifacts.
Especially with CAD objects (maybe because of its unclean topology - which I cannot change.)

The attachment Clipping.JPG is no longer available

Any options/settings to get rid of them, or is it,
because its still in beta?

thanks
Mike

I have been trying the clipping myself since beta 1. Clean topology whenever possible helps, and also the geometry must be water-tight closed. Lastly, you will have issues if your geometry has co-planar faces, even if they are from different materials - in that case I would offset one co-planar face to avoid artifacts.

miohn wrote:Hi There,

The clipping material unfortunately produces lots of artifacts.
Especially with CAD objects (maybe because of its unclean topology - which I cannot change.)

Clipping.JPG

Any options/settings to get rid of them, or is it,
because its still in beta?

thanks
Mike

Needs to test it. A sample scene pleas as always

Hi,

well I know QuadRemesher and the VolumeBuilder, but this is
no option, if you have to deal with CAD-Files with hundreds of objects.
Also to clean them up, make them watertide, change co-planar faces etc. does not work
with such a mass of objects.

If there would be only one CAD-Object I could, of course, remodel or optimize it.
Maybe a special STP-import setting in C4D could help?

Because these are CAD Files from the client I cannot upload them.
But you can download some from Grabcad.com
Bad topology is the commonality of most CAD objects

Since C4D himself has major problems when it comes to boole complex CAD-Models
(artefacts/flickering/leavin entire object in render), my great hope was to solve this problem
with the Octane Clipping Mat.

regards
Mike