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E-Cycles RTX 2019

2.82 builds with Mantaflow, USD, UDIM, light groups and much more already available! 50% off during Holidays with this coupon: https://gum.co/ECyclesRTX/holidays

E-Cycles RTX is a very optimized version of Cycles for Windows using NVidia's RTX GPUs. You can just hit render and benefit from all the advantages. Render your scenes up to 2.5x faster out of the box than Cycles Optix, always using the latest and greatest Blender thanks to weekly builds. Users say it best:

"E-Cycles lets me render & proof huge print ready assets locally on 3 gpus – no renderfarm rt required!" – Paul, CG Artist

E-Cycles is very fast out of the Box, with same image quality. With one click, you select a profile and get even greater speed. Benchmark by E-Cycles user Hyesung.

E-Cycles helps you:

- save a lot of time by rendering faster. The mean speedup for the path tracing phase is around 2x out of the box (you can render about 3x more frames in the same time). It can be up to 20x faster using quality presets. You can also use the extra speed to render with higher quality in the same time

- Render very clean preview images thanks to a new AI denoiser that gives great results on still images at 16 samples. Really helpful for quick feedback with your clients

- scene preparation is much faster thanks to optimized BVH building in final render

- save tweaking time by using auto tile size and quick quality presets

- keep your hardware on a budget

- spare a lot on your electricity bill thanks to shorter render times

- get more out of your current GPU

What artists say about E-Cycles:

Alleyne Studio, you can see several screen recording of him using E-Cycles on his channel https://www.youtube.com/channel/UCKUhZgvE_RqZm9ImzKQ0RjA


Flavio Della Tommasa "Obviously in terms of performance I believe the data speak for themselves. On 8 images, 2h each, I lost a day of calculation. With E-Cycles, in just over 2 hours I solved everything." https://blenderartists.org/t/e-cycles-faster-cuda-rendering/1139717/116

"Impressive speed-ups", "support is good, all issues (specific to E-Cycles build) I have found and reported were quickly fixed" https://blenderartists.org/t/e-cycles-faster-cuda-rendering/1139717/79

"The Speedup is amazing" https://blenderartists.org/t/e-cycles-faster-cuda-rendering/1139717/60

"91s to 45s with a RTX 2070" https://blenderartists.org/t/e-cycles-faster-cuda-rendering/1139717/51

"3m:09s to 1m:42s, needless to say, I’m impressed!" https://blenderartists.org/t/e-cycles-faster-cuda-rendering/1139717/99

Known Limitations:

- Requires Windows or Linux with RTX GPUs and Nvidia driver version 436+

- Some features are not supported. If you need those, please use regular E-Cycles:

  - Volumetrics,

  - Branched Path Tracing

  - Raytracing nodes (Bevel and AO)

  - Baking

  - Dithered sobol and adaptive sampling

- first render takes more time due to kernel compilation.

- no CPU+GPU rendering


Support is only for the E-Cycles parts. Bugs found in buildbots are to be reported to the Blender Foundation on developer.blender.org

System Memory:

Scenes have to fit in the GPU memory for the speed-up to work properly. Since some months, Blender supports rendering scenes on GPU while using system memory to some extent. While E-Cycles allows this too, the speed of the system memory is too low and your GPU will just wait for datas to arrive. In most cases, scenes requiring more memory than available on the GPU should be rendered on CPU

Minimum system requirements:

- NVidia RTX card

- 64bit Windows or Linux

- drivers v436 and up.

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