This page provides information about the supported features by Chaos Cloud rendering.
Chaos Cloud supports and renders scenes using both the V-Ray CPU and the V-Ray GPU engines. Chaos Cloud supports V-Ray GPU rendering running on CUDA and RTX enabled devices.
Please note that there are several important limitations using the V-Ray GPU engine:
Version V-Ray 5 and onwards: all submitted V-Ray GPU jobs are rendered with Progressive mode! It is recommended to use Progressive mode when submitting jobs to Chaos Cloud, as it runs faster than the Bucket mode.
For V-Ray Next and prior versions: V-Ray GPU runs only in Bucket mode! Any V-Ray GPU Progressive scene will be forced to render with the default Bucket mode sampling settings if no prior Bucket adjustments are done to the scene. If any Bucket adjustments are done in the scene, regardless of whether Progressive is chosen afterwards, Chaos Cloud will use those Bucket settings. We recommend using the Bucket image sampler when submitting a scene for rendering in GPU mode in order to keep greater control over the render settings and quality.
Chaos Cloud supports only versions V-Ray Next Update 1 (4.10.x) and above for V-Ray GPU, i.e. any V-Ray GPU scene created with a previous version will be rendered with V-Ray Next Update 1 (4.10.x).
V-Ray GPU jobs are rendered with GPU devices, but submitted scenes should not exceed 16 GB of GPU memory. Else, the jobs fail. In such cases you can use the CUDA CPU Override option and re-render the job using only CPU.
Render region option in V-Ray for Maya is supported in the cloud. You can set the region in your host platform, and then export the scene to Chaos Cloud.
Rendering in Chaos Cloud is handled by V-Ray Standalone. Keep that in mind in case you are using any third-party plugins unsupported by V-Ray Standalone.
Scenes containing Phoenix FD simulations are rendered in the Cloud. However, running simulations in Chaos Cloud is not supported yet.
VRscan materials are supported in Chaos Cloud.
For detailed information on the supported features by V-Ray in Chaos Cloud, please visit the corresponding page:
Some custom V-Ray settings are overridden in the Chaos Cloud environment to ensure best optimization of the resources. Below is a full list of those settings.
Bucket Image Sampler
When using the Bucket render mode, the Bucket size is automatically set depending on the hardware type used for rendering. This ensures the best cloud rendering performance based on the machines' specifications and the performance tests we continuously run. If the Bucket size in the scene is different, it will be overridden.
GPU Acceleration for Denoiser and Lens Effects
GPU Acceleration is always used for the Denoiser and Lens Effects in case the hardware allows it.
In case the job runs on a hardware without GPU and this option is enabled, Chaos Cloud will disable it and continue applying the effects without GPU Acceleration.
AI Denoiser to V-Ray Denoiser
NVidia AI Denoiser is always overridden by the default V-Ray Denoiser in Chaos Cloud.
V-Ray Dynamic Memory Limit
To ensure that the CPU isn't underutilized in the Cloud, the following system settings are done:
- Dynamic geometry limit is removed;
- Compact memory feature is disabled.