mitsuba2

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[🐛 bug report] Rendered image is different between `packet_rgb` / `scalar_rgb`

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## System configuration - Platform: Ubuntu 20.04 - Compiler: clang-9 - Python version: 3.8.2 - Mitsuba 2 version: master https://github.com/mitsuba-renderer/mitsuba2/commit/2562f74efa4efe3997ca4ab6e9cd7c558f75aac4 - Compiled variants: * `scalar_rgb` * `packet_rgb` ## Description `scalar_rgb`...

pjessesco

[🐛 bug report] code 139 (interrupted by signal 11: SIGSEGV) when converting parameter to torch tensor

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## Summary After some struggle compiling Mitsuba2 with CUDA support, I finally managed to get it working, but trying to run the PyTorch integration example results in an error. ##...

AndresCasado

[❔ other question] How to deal with light source occlusion by a glass plate

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## Summary In the docs I read https://mitsuba2.readthedocs.io/en/latest/generated/plugins.html#path-tracer-path > This directly translates into a category of scenes where a path tracer can be expected to produce reasonable results: this is...

PidgeyBE

❔ other question - Updating ply mesh vertex positions in scene params crashes program

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## Summary Mitsuba2 crashes when updating ply mesh vertex positions in scene params with the following error message: `Process finished with exit code 139 (interrupted by signal 11: SIGSEGV)` ##...

Samia067

[❔ other question] Sampler with masked parameter

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## Summary I'm confused how `next_1d()` works with masked parameter. ## System configuration - Platform: Ubuntu 20.04 - Compiler: clang9 - Python version: - Mitsuba 2 version: 2.2.1 - Compiled...

pjessesco

- [🔨 compilation issue] REGEX mode REPLACE failed to compile regex

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## Summary CMake REGEX REPLACE failure on ext/asmjit/CMakeLists.txt line 222 ## System configuration - Platform: ubuntu 18.04.3 - Compiler: clang-9 - Python version: 3.6.9 (or 3.7.5) - Mitsuba 2 version:...

RomboDev

[🐛 bug report] Python custom integrator: type mismatch in load_dict + runtime error when rendering

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## Summary When using a custom integrator in Python based on `docs/examples/03_direct_integrator/direct_integrator.py`, I noticed 2 issues: 1. The integrator is not properly registered in `load_dict`, only in `load_file`. 1. Calling...

tomasiser

Cuda Memory Alloc Erorr

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I am trying to render the [cbox-spectral](https://github.com/mitsuba-renderer/mitsuba-data/blob/b3c238ab16e7bd45766b468176d1d47cac898e0c/scenes/cbox/cbox-spectral.xml) on the GPU, and I am getting a cuda_malloc error. Debug printouts show that 6.5664 GB of memory is freed after the allocation...

acdupont

Exposure variation between "packet_spectral" and "scalar_spectral" modes.

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Hi, I was comparing the `packet_spectral` and `scalar_spectral` modes with the `mitsuba2/resources/data/scenes/matpreview/matpreview.xml` scene and I noticed an almost exactly 1 stop exposure difference between the two modes:  Image with...

KelSolaar

ray_intersect() behaves strange in Python

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Hi, I tested custom integrator in python and encountered a strange behavior of `ray_intersect()`. # System configuration - Windows10 - latest commit (5d40a40b94fcad283d7a3fe0353ff5fad0d59ba0) - I used 3 variants, `scalar_rgb`, `packet_rbg`...

Mine-525