Cinema4D version 2021.1-RC3(r2) (obsolete build) 14.10.2021

Forums: Cinema4D version 2021.1-RC3(r2) (obsolete build) 14.10.2021
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Re: Cinema4D version 2021.1-RC3(r2) (Current 2021) 14.10.2021

Postby sivertbakkeng » Tue Oct 26, 2021 10:17 pm

sivertbakkeng Tue Oct 26, 2021 10:17 pm
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
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Re: Cinema4D version 2021.1-RC3(r2) (Current 2021) 14.10.2021

Postby jayroth2020 » Wed Oct 27, 2021 12:44 am

jayroth2020 Wed Oct 27, 2021 12:44 am
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...
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still problems with clipping mat

Postby miohn » Wed Oct 27, 2021 1:19 pm

miohn Wed Oct 27, 2021 1:19 pm
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
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Re: Cinema4D version 2021.1-RC3(r2) (Current 2021) 14.10.2021

Postby jayroth2020 » Wed Oct 27, 2021 4:25 pm

jayroth2020 Wed Oct 27, 2021 4:25 pm
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."
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Re: Cinema4D version 2021.1-RC3(r2) (Current 2021) 14.10.2021

Postby miohn » Wed Oct 27, 2021 6:14 pm

miohn Wed Oct 27, 2021 6:14 pm
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
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Re: Cinema4D version 2021.1-RC3(r2) (Current 2021) 14.10.2021

Postby Kalua » Wed Oct 27, 2021 8:09 pm

Kalua Wed Oct 27, 2021 8:09 pm
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,
Attachments
Screenshot 2021-10-27 141837.jpg
Automatically upgraded color space
Screenshot 2021-10-27 141349.jpg
Screenshot 2021-10-27 141313.jpg
Screenshot 2021-10-27 140436.jpg
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Re: Cinema4D version 2021.1-RC3(r2) (Current 2021) 14.10.2021

Postby jayroth2020 » Wed Oct 27, 2021 9:54 pm

jayroth2020 Wed Oct 27, 2021 9:54 pm
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.
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Re: still problems with clipping mat

Postby Kalua » Thu Oct 28, 2021 1:27 am

Kalua Thu Oct 28, 2021 1:27 am
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.
Attachments
image (1).png
Example 2: minimum offset between polygons gives clean clipping!
a.jpg
Example: clipping clean and enclosed manifold geometry of window frames and glass have co-planar goemetry = artifacts
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Re: still problems with clipping mat

Postby aoktar » Thu Oct 28, 2021 4:16 am

aoktar Thu Oct 28, 2021 4:16 am
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
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Re: Cinema4D version 2021.1-RC3(r2) (Current 2021) 14.10.2021

Postby miohn » Thu Oct 28, 2021 11:12 am

miohn Thu Oct 28, 2021 11:12 am
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
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