These are NOT nVidia specific, even though nVidia uses their CUDA and OPtix technologies in implementation. (See PS5/XBox 2020)Īs for ‘cornering the market’ – RTX features and technologies are already in Vulkan and other full OSS frameworks. However, the base technologies of real-time RT and new AI/ML features are not nVidia’s, and won’t be locked to nVidia – as the next AMD GPUs will have similar hardware support. NVidia is like most other companies, with Intel and AMD also having a history of being horrible.
The Blender preferences expose this as a new device type, which lists RTX supported GPUs in the system and supports both single and multi-GPU rendering: Our approach was to implement a new backend to Cycles which uses the OptiX API to manage acceleration structures plus ray intersection with its programmable parts calling into Cycles’ existing code for ray generation and shading. It provides a complete package with programmable ray generation, intersection and shading while using RT Cores on NVIDIA RTX GPUs for accelerating Bounding Volume Hierarchy (BVH) traversal and ray/triangle intersection testing. NVIDIA OptiX is a domain-specific API designed for accelerating ray tracing. To achieve consistent images across the options, most of the rendering code is shared. What was done?Ĭycles today already supports a range of hardware types, including options for both CPU and GPU rendering. In this blog, I’ll discuss the technical approach taken, review performance you can expect and share possible a future direction.
I’ve provided instructions in the linked review. If you’d like to try it out, the source code is currently undergoing review before being merged and is available for anyone to download, build and run. Now, Cycles can fully utilize available hardware resources to considerably boost rendering performance. To do this, we created a completely new backend for Cycles with NVIDIA OptiX, an application framework for achieving optimal ray tracing performance on NVIDIA RTX GPUs. Over the past few months, NVIDIA worked closely with Blender Institute to deliver a frequent user request: adding hardware-accelerated ray tracing to Cycles.
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