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Dielectric surfaces appear perfectly reflective at moderate incidence angles

Status: Open.

#547 In mmp/pbrt-v4;

· BluePhoton42 opened on Jul 5, 2026

Linear encoded PNG textures render differently on CPU and GPU

Status: Open.

#543 In mmp/pbrt-v4;

· Latios96 opened on Jun 2, 2026

GPU build on Arch fails - Lots of ptxas errors

Status: Open.

#539 In mmp/pbrt-v4;

· lgleznah opened on Apr 15, 2026

network rendering

Status: Open.

#534 In mmp/pbrt-v4;

· zardo-tagore opened on Jan 28, 2026

Issues with DiffuseAreaLights and Meshes

Status: Open.

#533 In mmp/pbrt-v4;

· e-ulff opened on Jan 22, 2026

pbrt.exe crashes when run with --gpu

Status: Open.

#532 In mmp/pbrt-v4;

· kyamant opened on Jan 7, 2026

nvcc fatal : A single input file is required for a non-link phase when an outputfile is specified

Status: Open.

#531 In mmp/pbrt-v4;

· Haiderahandali opened on Jan 6, 2026

Bad XDG_SESSION_TYPE assert under Windows

Status: Open.

#530 In mmp/pbrt-v4;

· pbrt4bounty opened on Dec 23, 2025

Directional Mix texture cause a lot of NAN's when 'dir' is set as (0,0,0)

Status: Open.

#529 In mmp/pbrt-v4;

· pbrt4bounty opened on Dec 22, 2025

Refraction becomes blurred when shading normals are used

Status: Open.

#528 In mmp/pbrt-v4;

· Vutshi opened on Dec 12, 2025

MLT integrator convergence issue

Status: Open.

#525 In mmp/pbrt-v4;

· Vutshi opened on Nov 11, 2025

GPU build on Windows fails in NVCC due to OpenEXR flags; please bump OpenEXR submodule to v3.3.4+

Status: Open.

#509 In mmp/pbrt-v4;

· LanFear-Li opened on Aug 29, 2025