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This page will help you configure V-Ray for GPU rendering. For help with common questions, please see the V-Ray GPU Frequently Asked Questions page.
Overview
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Why V-Ray GPU?
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If V-Ray GPU cannot find a supported CUDA device on the system, it silently falls back to CPU code. If V-Ray GPU cannot find a supported RTX device on the system, the process stops.
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Тo use NVLINK on supported hardware, NVLINK devices must be set to TCC mode. This is recommended for Pascal, Volta and Turning-based Quadro models. For GeForce RTX cards, a SLI setup is sufficient. Also note that to prevent performance loss, not all data is shared between devices. For more information, see the OptiX and NVLink FAQ page. |
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V-Ray GPU is not officially supported on macOS. It works only with C++/CPU devices. V-Ray GPU can still be used in distributed rendering where a macOS machine runs the CUDA engine on a CPU device together with Windows/Linux machine(s) running CUDA engine on GPU device(s). |
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Choosing Which Devices to Use for Rendering
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When choosing the devices from the Asset Editor - it is done only for the current session in SketchUp.
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If you see your CPU listed twice, choose the option with "C++/CPU " in the name. |
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Hybrid Rendering with CPUs and the CUDA Engine Anchor#Hybrid #Hybrid
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More info about the nature of Hybrid rendering is available at the blog post Understanding V-Ray Hybrid rendering.
Notes
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Memory usage can be viewed from the Stats section of the new V-Ray Frame Buffer.
References
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