Hello! I found strange behavior of Light and Sky with HDRI when Occlude other lights option in Light tag unchecked. Other options are default.

A caustic-like effect appears. The light from the HDRI passes through the grille in the ceiling, passes through the plane of Light and is refracted strangely as it hits the floor. Render result of my setup in attachment. This effect does not disappear when I change other settings in Light tag

Is it bug or feature?

Simple scene in attachment. HDRI texture is Rural Asphalt Road from HDRI Haven, here is link https://polyhaven.com/a/rural_asphalt_road

Hi, Kirgman! Thanks for answer! This problem appears in 2023 and 2024 versions, but in the 2024 version this bug appears more often. I did some tests, and looks like problem with EXR textures, tag with HDR pass changing texture, reopen IPR, deleting cache file, PV render in 2024 version. *.jpg, *.png, ets. in tag works fine too.

I'm trying S24 version, seems like everythin ok and Enviroment Tag with texture works right. And cache file (*.cntx) created. By the way, if you then open the same scene in 2024, when the cache file was created by version S24, the chance of catching a bug is minimal

But...) When I open this scene in S24 version, the Color Node in material node editor becomes a potato)

Hello again, Kirgman!

I found that this error completely disappears on drivers version 537.34 from September 2023.

But before rolling back to the old version of the driver, I found an error with the Environment Tag. And its symptoms are very similar to the previous one.

When I add Sky with Environment Tag everything is fine, but when I add texture to Environment Tag - Centileo IPR lives only one attempt. Exactly the same as in the case when the Denoiser turned on early. When I open an existing scene with a texture in the Environment Tag, the render fall on the first try. But when I add a very big Sphere with Emission material with the same texture to the scene instead of Sky - everything fine

I added a short screenrec, maybe it will help solve the problem. File ScreenRecorderProject2_5.mp4 by the link https://drive.google.com/drive/folders/1tkmPEirOisbdbdogR6YRz2iLV24kEGB1?usp=sharing

Hello! Found this fun bug. When no Camera is selected as POV, Picture Viewer render nothing, while Centileo IPR is ok. I've attached a short screenrec how this happens

Hi, Kirgman! Thanks for your fast answer!

Quote
Kirgman wrote: For now you may even turn Denoiser value to zero and the glitch will dissappear.

Turning Denoiser to zero value works perfect. On other hand I just increased iterations. IPR and Production Render works fine again!

You really helped me now! Thanks for your work!

Best regards,
Junky

Greetings! I have encountered some very strange crashes with CentiLeo. They happen on every second render with all Centileo's scenes. The computer starts, I open the c4d scene, press the render IPR CentiLeo, everything is fine. Then I close the IPR window and open it again and this strange pattern covers image. After closing the window, Cinema crashes. All further attempts lead to the same thing. Link to screen record video of this glitches - https://drive.google.com/drive/folders/1tkmPEirOisbdbdogR6YRz2iLV24kEGB1?usp=sharing

The strange pattern covers the entire image, and it is also saved to pictures while task in render queue or production render. I tried other versions of CentiLeo, also tried in combinations with other versions of Cinema 4d, the result is the same. Only one clean render attempt after PC restart.

The first thing I thought was a problem with the GPU. But long tests show that GPU is fine. I tried other render engines (v-ray, redshift, cinebench..), some GPU stress tests, such as Furmark, some heavy games. Everything is fine.

Before that, I used CentiLeo for more than 8 months and only last week this terrible glitch appeared. Now I want to understand, is this a problem with the software, or this is the first call of upcoming GPU death?

GPU: RTX 2080, Win 11, GPU Driver 546.01

Thanks!