VL.Nvidia.PathTracing 0.7.5

VL.Nvidia.PathTracing

Real-time path tracing for vvvv gamma powered by NVIDIA RTXPT, NRD denoising, ReSTIR DI/GI sampling, DLSS Ray Reconstruction, and Shader Execution Reordering.

New in 0.7.3

• Wire DepthOfField directly into the renderer for aperture and focus control. Output-resolution HDR bokeh follows DLSS-RR, with improved focus transitions and edge coverage.
• Wire Fog directly into the renderer for homogeneous, single-scattered light beams and shadowing from finite lights on primary camera rays.
• Use cached noise, interwoven-helix and flow-line PointField layouts and the updated Depth of Field and Fog help patches.
• Existing user SDFs automatically skip ray segments outside their object bounds. A representative 131,072-object scene measured about 2.4x faster GPU path tracing; results depend on the scene and GPU operating conditions.
• Common SDF include edits select fresh immutable shader generations. Expected first-frame activation no longer leaves a persistent warning on the renderer.

DX12Bridge 0.7.3 adds HDR10 ten-bit video recording. Select the path tracer's ProcessedColor resource to retain scene-linear highlights before tone mapping. HEVC/NVENC file output is verified; actual AV1 encoding remains unverified. DOF acceptance covers the inspected examples, not all transparent/reflected layers or complete elimination of camera-motion noise. Fog is not full volumetric path tracing.

Requirements

• NVIDIA RTX GPU (Ampere / RTX 30-series or newer recommended)
• Windows 10 / Windows 11
• vvvv 2025.7 or later
• Latest NVIDIA Game Ready or Studio driver

Features

Installation

Install via vvvv's NuGet feed or manually:

nuget install VL.Nvidia.PathTracing

This automatically installs the full dependency stack:

• VL.Nvidia.PathTracing — RTXPT renderer, NRD denoiser, RTXDI sampler
• VL.Nvidia.Streamline — Streamline / DLSS-RR / DLSS-G integration
• VL.Stride.DX12Bridge — high-performance DX11↔DX12 bridge

Architecture

vvvv patch
  └── VL.Nvidia.PathTracing        (path tracing renderer nodes)
        └── VL.Nvidia.Streamline  (DLSS-RR, Reflex, DLSS-G)
              └── VL.Stride.DX12Bridge  (DX11↔DX12, mesh shaders, RT)
                    └── NVIDIA SDKs (Streamline, NRD, RTXPT, DLSS)

License

Free for personal, non-commercial use. © 2026 Tebjan Halm — see LICENSE.txt for full terms.

All other use requires a commercial license from Tebjan Halm — this includes companies, studios, universities, research institutions, NGOs, government bodies, and freelancers. To obtain a license, contact me via tebjan.de.

NVIDIA SDK Notice

This package includes pre-built NVIDIA SDK binaries (Streamline, NRD, RTXPT, DLSS). Use of those binaries is additionally governed by NVIDIA's Software License Agreement for each respective SDK.