In Modo, the situation is more complex, in that Foundry’s 3D software already has a GPU render engine, in the shape of AMD’s Radeon ProRender, which Foundry began integrating in Modo 13.0 earlier this year. Modo: a successor to the original CPU-based REYES renderer? As well as RTX cards, the new GPU ray tracing system works with older Nvidia GPUs. Updated 12 November 2019: KeyShot 9 has now shipped. If the software detects a compatible GPU in the user’s system, a new button appears on the KeyShot Ribbon interface to enable GPU rendering otherwise, the scene renders on the CPU as normal. KeyShot’s implementation gets around the chief drawback of RTX – that it only works with Nvidia GPUs – by making RTX rendering an either/or choice. “With NVIDIA’s RTX technology GPUs with over 8GB of memory, and the free OptiX SDK, now is the time to do it,” he said. RTX support will be available in KeyShot 9, due in “fall 2019”.Īccording to Luxion chief scientist Henrik Wann Jensen – a sci-tech Academy Award winner for his work on subsurface scattering – the firm had “evaluated GPU rendering for several years”. To that list, we can now add Luxion’s KeyShot, used both for product visualisation and as the primary external renderer for ZBrush. KeyShot: due in version 9 this fall as an alternative to pure CPU rendering RTX ray tracing is also used for texture baking in both Substance Painter and Substance Designer. Render engines now supporting the RTX platform include Clarisse iFX, which uses it for viewport previews.įor final-quality output, there are alpha or beta implentations in Arnold GPU, OctaneRender, Redshift, and Unreal Engine – the latter primarily as a hybrid rasterisation/ray tracing renderer. Software access to those cores is provided via OptiX, Nvidia’s ray tracing framework, which the firm made free for commercial use in 2017, or via alternative graphics APIs DXR and Vulkan. Nvidia’s current-gen RTX GPUs – the GeForce RTX consumer cards, Quadro RTX workstation cards, and the can’t-quite-make-up-its-mind Titan RTX – have dedicated hardware cores for ray tracing calculations. What is RTX, and which other applications have supported it? The new path tracing render engines coming up in KeyShot 9 and an unspecified future version of Modo are both on show at Siggraph 2019, while early source code for the Blender implementation is already available. Modo, KeyShot and Blender have become the latest DCC applications to announce support hardware-accelerated ray tracing on Nvidia’s new RTX GPUs. Luxion’s intutive renderer for product visualisation, also used as an external render engine for ZBrush, is due to support hardware-accelerated ray tracing on Nvidia RTX GPUs later this year.
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