FOR IMMEDIATE RELEASE

hdRstr: A ReSTIR/RTXDI-based Hydra Render Delegate

Coming soon: Direct lighting from tens of thousands of lights with
real-time frame rates directly inside the viewport.

Frankfurt/M, Germany, 2021-07-12 -- Stefan Krake (@stkrake), announced 
hdRstr, a ReSTIR/RTXDI-based Hydra Render Delegate. This brings
real-time ray tracing of very large numbers of light sources into any
Hydra-based application.

Features:

- ReSTIR-based direct lighting. Uses Nvidia's RTXDI implementation for
  maximum speed and quality.
- High quality real-time denoising through Nvidia's NRD solution.
- Optional 1-bounce indirect lighting accelerated with ReSTIR.
- Arbitrary emissive geometry ("mesh lights") and emissive textures.
- UsdPreviewSurface with metallic workflow.
- Works with SideFX's Houdini 18.5+. Requires Windows 10 with DXR 1.1
  (Linux/Vulkan planned).
- DXR-capable GPU required. RTX 2070 or higher recommended.

hdRstr will be soon available on https://gumroad.com/stkrake (Pricing is
not decided yet. A pre-order discount is planned). Open beta will start
in the next weeks on https://github.com/stkrake/hdRstr

Embeddable videos and screenshots can be found on:
https://stkrake.de/hdRstr (and also on https://vimeo.com/stkrake)


About ReSTIR, RTXDI and NRD

ReSTIR (Reservoir-based Spatio-Temporal Importance Resampling) is a
real-time, many-light algorithm for rendering dynamic direct
illumination from millions of lights. More:
https://research.nvidia.com/publication/2020-07_Spatiotemporal-reservoir-resampling
 
RTXDI is Nvidia's improved implementation of ReSTIR. More: https://developer.nvidia.com/rtxdi

NRD (NVIDIA Real-Time Denoisers) is a spatio-temporal API agnostic
denoising library designed to work with low ray per pixel signals. More:
https://developer.nvidia.com/nvidia-rt-denoiser


About Stefan Krake

Stefan Krake is a freelance programmer from Frankfurt/M, Germany,
specializing in C/C++, DirectX 12, DXR, CUDA, Optix. He started in the
1990s with graphics programming, tool development and engine porting and
worked many years in enterprise Java programming. The temptation of
real-time ray tracing lured him back to graphics.


Mail: stkrake@stkrake.de
Web: https://stkrake.de/
Twitter: @stkrake
Github: https://github.com/stkrake
Gumroad: https://gumroad.com/stkrake
Vimeo: https://vimeo.com/stkrake

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