Kalua wrote:linograndiotoy wrote:Kalua wrote:Sometimes when I increase/decrease "Parallel Samples" and "Max Tiles Samples" during a render will occure to error. No need to restart Octane or host application.
Hope it helps or perhaps I should avoid doing this.
It looks like this could be a very specific Cinema 4D version issue. Tried in both Standalone and Octane for Blender and got no error.
Yes. It does't fail everytime, it usually fails with heavy scenes wich doesn't require "Out-of-core memory" and however are on Vram limit... as I increase the Parallel and Max Tiles, the scene asks for "out-of-core" and that is when it crashes.
Increasing the number of parallel samples allows the kernel to increase its throughput at the price of a higher VRAM usage. This is more samples are calculated in parallel, which in turn requires more memory.
Since your scene is probably large as you mention, you might be close to your HW limits so bumping the number of samples will cause to go beyond the available VRAM size. Because OOC is disabled in your setup Octane runs out of memory.
You could try enabling OOC/NVlink in this scenario but take into account that if your scene starts using either OOC or NVlink due to a large number of samples you will experience worse performance, so it will have the opposite effect that in principle you might expect.