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openframeworks

OpenFrameworks is a cross platform open source toolkit for creative coding in C++.

openshadinglanguage

Advanced shading language for production GI renderers

opensubdiv

An Open-Source subdivision surface library.

openvdb_ax

Development repository for OpenVDB AX: a JIT expression language for VDB

openvdb_dev

OpenVDB Development Repository

openvdb_points_dev

OpenVDB Points Development Repository

oslshaderwriting

Siggraph 2023 Shader Writing in OSL Course Supplementary Material

pathdeformer

Path deformer modifier for Houdini

pbrt-v2

Source code for the version of pbrt described in the second edition of "Physically Based Rendering"

pbrt-v3

Source code for pbrt, the renderer described in the third edition of "Physically Based Rendering: From Theory To Implementation", by Matt Pharr, Wenzel Jakob, and Greg Humphreys.

pcc_2e

Online resources for Python Crash Course (Second Edition), from No Starch Press

physhader-for-mantra

Physical-based shader for Mantra renderer

pop

Extensible iOS and OS X animation library.

positionbaseddynamics

potpourri3d

An invigorating blend of 3D geometry tools in Python.

primitive

Reproducing images with geometric primitives.

ptex

Per-Face Texture Mapping for Production Rendering

ptexutils

open source Ptex utilities (e.g. texture transfer)

pvr

python_for_td

qlib

A procedural asset library for SideFX Houdini. https://www.facebook.com/qLibHoudini

qlib-dev

Development repository of qLib.

quadriflow

QuadriFlow: A Scalable and Robust Method for Quadrangulation

radeonprorenderusd

raytracinginoneweekend

The source for the ebook Ray Tracing in One Weekend by Peter Shirley. This work is in the public domain.

raytracingthenextweek

Code associated with ebook Ray Tracing The Next Week by Peter Shirley. This work is in the public domain.

raytracingtherestofyourlife

Code associated with ebook Ray Tracing The Rest of Your Life by Peter Shirley. This work is in the public domain.

rbdtutorial

ready

A cross-platform implementation of various reaction-diffusion systems.

reducedfluids

Source code for "Constraint Bubbles and Affine Regions: Reduced Fluid Models for Efficient Immersed Bubbles and Flexible Spatial Coarsening" (SIGGRAPH 2020)