C4DtoA_Cuda crash error when switching AOV while IPR is running

[alexandre.adrien]

Hello everybody !

I am used to Octane and Redshift and would really like to work under Arnold, especially with the GPU. My concern:

when I want to look at my passes in the IPR I have a "crash CUDA error".

If I want to avoid the C4D crash, I have to stop rendering [>], then change my beauty to the desired pass, then restart [>] the rendering so that it switches correctly (when I have luck and that also does not crash).

Here is the log I have:

Arnold IPR started at Tue Feb 2 16:18:34 2021

=================================================== ============================

[c4dtoa] 00:00:09 2842MB ERROR | [gpu] an error happened during rendering. OptiX error is: Unknown error (Details: Function "_rtContextLaunch2D" caught exception: Encountered a CUDA error: cudaDriver (). CuEventSynchronize (m_event) returned (700): Illegal address, file: <internal>, line: 0)

GPU 0 had 18979MB free before rendering started and 18736MB free when crash occurred

The problem, of course, does not appear when using the CPU.

I don't know if this is a dumb question or not, I'm starting to understand that Arnold is a bit more focused on the settings and leaves little room for errors. However, the sudden C4D crash when switching from one AOV to another is VERY annoying when working 🙂 It does on all my scenes, even the most basic ones like the one I put below. I thought it was the color space, but I did not touch anything ...
https://drive.google.com/file/d/1VwQ5A75g0clRBubevsUnsH9Rqucx0wQ4/view?usp=sharing

Thank you in advance for your answers 🙂

System: i7-5960X // 64GB RAM // RTX 3090 FE // RTX 2080 Super FE // C4D 23 // C4DtoA v3.3.0

[peter.horvath6V6K3]

Thank you for reporting the issue! I've just noticed this a couple of days ago and we are looking into it.

As a workaround, go to the Render menu in the IPR window and enable Render all AOVs. Then all AOVs are rendered in one go and switching AOVs don't require a re-render.

[alexandre.adrien]

Ah ah thank you, it was as "simple" as that. Hope the post can help others!

One would almost wonder why it is not activated as a base 🙂

Thanks again !

[peter.horvath6V6K3]

Yes, probably rendering all AOVs should be the default.