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Re: Octane 2026.3 for Cinema4D - v1.9.1
Posted: Thu May 21, 2026 7:45 am
by ChrisHekman
Tim0042 wrote: Thu May 21, 2026 7:34 am
ChrisHekman wrote: Wed May 20, 2026 3:40 pm
This was an oversight. I'll see if we can fix this.
Aah, perfect, thank you! : )
One more thing I noticed when rendering an existing scene from 1.9.0 in 1.9.1: Some node heavy materials change their look a bit. I think it might be connected to usage of the Gradient Node and you do list this node under the "improved color conversion" section. Could this be possible, even for just a grayscale gradient? I will try to make some tests with a simpler material.
Yes. For 2026 color conversion for these nodes was basically always wrong unless using legacy srgb or the value was exactly 1 or 0.
However we did add scene conversion that should keep scenes the same
Could you send me a scene with some of those materials (before they were converted to 1.9.1)
Re: Octane 2026.3 for Cinema4D - v1.9.1
Posted: Thu May 21, 2026 9:04 am
by Tim0042
Tim0042 wrote: Thu May 21, 2026 7:34 am
One more thing I noticed when rendering an existing scene from 1.9.0 in 1.9.1: Some node heavy materials change their look a bit. I think it might be connected to usage of the Gradient Node and you do list this node under the "improved color conversion" section. Could this be possible, even for just a grayscale gradient? I will try to make some tests with a simpler material.
Brought the material into a basic scene and simplified it a little bit. Purple submaterial has a noise node going into a gradient going into the bump, blue submat has a fresnel masked via a noise, also filtered through a gradient.
The same scene in 1.9.1 seems to result in a brighter fresnel and a clipped or otherwise adjusted bump noise. Still not sure if it does have something to do with the gradient, but I attached the c4d. =/
//EDIT: Ah, just saw your response after I was done typing - yep, I hope this helps and thanks for looking into it! : )
//EDIT: Updated the image, as I forgot to re-apply ACES in the LV for the new plugin version, so now the comparison is clearer - sorry!
Re: Octane 2026.3 for Cinema4D - v1.9.1
Posted: Thu May 21, 2026 11:21 am
by ChrisHekman
Tim0042 wrote: Thu May 21, 2026 9:04 am
Tim0042 wrote: Thu May 21, 2026 7:34 am
One more thing I noticed when rendering an existing scene from 1.9.0 in 1.9.1: Some node heavy materials change their look a bit. I think it might be connected to usage of the Gradient Node and you do list this node under the "improved color conversion" section. Could this be possible, even for just a grayscale gradient? I will try to make some tests with a simpler material.
Brought the material into a basic scene and simplified it a little bit. Purple submaterial has a noise node going into a gradient going into the bump, blue submat has a fresnel masked via a noise, also filtered through a gradient.
The same scene in 1.9.1 seems to result in a brighter fresnel and a clipped or otherwise adjusted bump noise. Still not sure if it does have something to do with the gradient, but I attached the c4d. =/
//EDIT: Ah, just saw your response after I was done typing - yep, I hope this helps and thanks for looking into it! : )
Gradient Test Material Look Change fix.png
//EDIT: Updated the image, as I forgot to re-apply ACES in the LV for the new plugin version, so now the comparison is clearer - sorry!
Thanks for the report. Apparently the gradient node was not being version converted to the new version of the plugin resulting in different values.
I added a fix. It will be part of the upcomming hotfix. I suspect tomorrow.
Re: Octane 2026.3 for Cinema4D - v1.9.1
Posted: Thu May 21, 2026 11:27 am
by ChrisHekman
Edovech87 wrote: Wed May 20, 2026 8:33 pm
I tried a new standard interface but cinema4d crash on kernel change, always. Now i'm back on v1.9.0
We tried but QA and I cannot reproduce this crash. Could you provide more information on your settings, scene, c4d version and steps to reproduce the crash?
Re: Octane 2026.3 for Cinema4D - v1.9.1
Posted: Thu May 21, 2026 11:35 am
by Edovech87
I've the last versione of cinema4d. When I open it, i select octane renderer (no save section with 1.9.1) and nothing else. Then I select path tracing and there's the crash. Very simple
Re: Octane 2026.3 for Cinema4D - v1.9.1
Posted: Thu May 21, 2026 1:04 pm
by DinoMuhic
Edovech87 wrote: Thu May 21, 2026 11:35 am
I've the last versione of cinema4d. When I open it, i select octane renderer (no save section with 1.9.1) and nothing else. Then I select path tracing and there's the crash. Very simple
Can you please try with a default C4D Layout or re-instaling the plugin?
You say "no save section with 1.9.1" what do you mean with that? There is a save section in the Render Settings when you choose OctaneRender
Re: Octane 2026.3 for Cinema4D - v1.9.1
Posted: Sat May 23, 2026 6:14 pm
by Edovech87
I made a video to show you what's wrong with this version. As you can see, the save section is no longer available and free vram seems a little less than before with a default empty scene
Re: Octane 2026.3 for Cinema4D - v1.9.1
Posted: Sat May 23, 2026 6:26 pm
by DinoMuhic
Edovech87 wrote: Sat May 23, 2026 6:14 pm
I made a video to show you what's wrong with this version. As you can see, the save section is no longer available and free vram seems a little less than before with a default empty scene
We have a 1.9.3 out already
viewtopic.php?t=85668&sid=04a1b01bfe5b237c3c9847b7261d52d0
Please redo any c4d layouts you may have using octane
Also any VRAM related things are usually related to the core engine and not the plugin
Re: Octane 2026.3 for Cinema4D - v1.9.1
Posted: Sat May 23, 2026 6:54 pm
by Edovech87
I see and now it works. The free vram is about 1 GB less the 1.9.0. I'll post in the right section. Sorry. I know it's about the octane core.