pbrt-v4 is a physically based ray tracing system that implements modern rendering algorithms and techniques.
It is the rendering system described in the fourth edition of Physically Based Rendering: From Theory to Implementation.
This is free and open source software.
Key Features
- Spectral rendering using point-sampled spectra.
- Modern volumetric scattering with support for emissive volumes and RGB-valued absorption and scattering coefficients.
- GPU rendering on systems with CUDA and OptiX.
- Support for volumetric and subsurface scattering.
- Physically based BxDFs and materials.
- Accurate simulation of scattering from layered materials using Monte Carlo random walks.
- Many-light sampling using light BVHs.
- Solid angle sampling for triangle and quadrilateral light sources.
- Rendering in absolute physical units with modelling of real cameras.
- Blue noise Sobol’ sampling.
- G-buffer output providing position, normal, albedo, and other information for each pixel.
- Optional path regularization.
- Progressive image display using the tev image viewer.
- Writes images in OpenEXR, PNG, and PFM formats.
Website: github.com/mmp/pbrt-v4
Support:
Developer: Matt Pharr, Wenzel Jakob, and Greg Humphreys
License: Apache License 2.0
pbrt is written in C++. Learn C++ with our recommended free books and free tutorials.
Related Software
| Ray Tracing Software | |
|---|---|
| POV-Ray | Full-featured ray tracer |
| Blender | 3D content creation suite with a huge range of uses |
| McXtrace | Monte Carlo Xray Tracing for simulation X-ray beamlines and experiments |
| McStas | Simulator for neutron scattering instruments and experiments |
| BRL-CAD | Combinatorial Constructive Solid Geometry (CSG) solid modeling system |
| Embree | High-performance ray tracing library |
| LuxCoreRender | Rendering system for physically correct image synthesis |
| Visionaray | C++ ray tracing template library |
| YafaRay | Montecarlo raytracing engine |
| MantaRay | Advanced renderer using modern rendering techniques |
| Tachyon | Parallel / multiprocessor ray tracing system |
Read our verdict in the software roundup.
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