Matt Pharr comments

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                                            Matt Pharr

Periodic Radiance Values for Spectral Render

Here we go: the answer is that the error is correlated but there's still error: 63 spectral film buckets, 63 spectral samples, "independent" sampler: Same deal, using a different RNG...

[Ubuntu] Unable to build TEV; uintptr_t not declared in scope.

Should be fixed in ebd7bfa1a7e22b6cc0f2637b0aa9253f5a2f1dc8.

Apple M3 raytracing acceleration

I don't know anything about Metal so can't say. What is the state of apple's C++ support on the GPU?

Apple M3 raytracing acceleration

For NVIDIA GPUs, almost all of pbrt's rendering code (sampling, light source models, BSDF evaluation, etc.) runs on the GPU; it's almost entirely the same code as runs on the...

using --pixelstats in conjunction with --outfile do not work as expected

Thanks for reporting this! Should be fixed now.

Incorrect Motion Blur with SPPM

(This was fixed by #441)

pbrt_exe (Release) crashing

Is there any theory about what this is fixing why is it necessary? If it's just a random change that makes the bug go away then it doesn't make sense...

Fix CMake build error finding OpenEXR package

Thanks! I believe that other PRs have taken care of this issue so closing this one out.

Build errors using Linux (both with gcc 13.2.1 and clang 17.0.6)

- The OpenEXR one be fixed now in ebd7bfa1a7e22b6cc0f2637b0aa9253f5a2f1dc8. - I see `#include ` already in `flip/flip.cpp`. What error are you seeing there? - glfw was updated to the latest...

Equivalent of Kt and Kr in dielectric material?

> If I try and start from a v3 file with glass, the --upgrade function converts "color Kt" [0.7 1 0.7 ] to "rgb Kt" [0.7 1 0.7 ]. The...