mitsuba2

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[🔨 compilation issue] gpu_autodiff compilation error on Windows10, CUDA 11

9

## Summary Hi, I have compilation issues with the following system settings: - Platform: Windows 10, CUDA 11.1 - Compiler: Cmake 3.21.1.0, MSVC 2019 - Python version: 3.8 - Mitsuba...

Agent-INF

[❔ other question] How to trace the true value of rays emitted from a bitmap projector in the camera

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I'm trying to project the following pattern (valued from 0 to 1) to an object and get the value reflected by the object in the camera:  I tried to...

Li-Jiren

Krisrst/advanced lenses

1

**This PR is a work-in-progress.** As of right now this is _not_ ready for "detailed reviewing" - although general feedback is very much appreciated. There are unimplemented methods, logging of...

krisrst

Editing scene object structure - [❔ other question]

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I'm trying to write a USD Hydra delegate for Mitsuba. In order to do so I need to be able to change the scene structure, e.g. to assign a new...

anderslanglands

[🔨 compilation issue] Compilation on WSL2 fails with cuda linker error

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## Summary Compilation stops on WSL2 with `/usr/bin/ld: cannot find -lcuda` ## System configuration - Platform: Windows 11/WSL2 (Ubuntu 20.04.4 LTS) + CUDA 11.4 - Compiler: GCC9.4 - Python version:...

JamesGlare

rgb2spec_opt fails to run on Mac Os Catalina

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External utility `rgb2spec_opt` currently compiles but does not run on Mac Os Catalina 10.15.4 and Xcode 11.3.1. ```bash login$ mitsuba2/build/ext_build/rgb2spec/rgb2spec_opt dyld: Library not loaded: @rpath/libtbb.dylib Referenced from: mitsuba2/build/ext_build/rgb2spec/rgb2spec_opt Reason: image...

SergeyShlyaev

[🐛 bug report]cuda_var_register(): attempted to create a variable of size zero!

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## Summary The following error occurs when I use gpu rendering（`gpu_rgb gpu_autodiff_spectral`），But it can be executed successfully when using the default variant ``` Caught a critical exception: cuda_var_register(): attempted to...

Chenguoz

Is win32 build possible ?

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I am trying to build mitsuba2 for windows 7 following these instructions: https://mitsuba2.readthedocs.io/en/latest/src/getting_started/compiling.html # To be safe, explicitly ask for the 64 bit version of Visual Studio cmake -G "Visual...

SkybuckFlying

- [❔ other question] Add differentiable parameter to shape

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## Summary How to add a differentiable parameter to an existing shape? ## Description I am trying to make the radius of a sphere differentiable, any hint on how to...

chx125ck

Mitsuba 1 Sunsky

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**NEW DESCRIPTION:** Port of the mitsuba1 sunsky plugin, following the old implementation as closely as possible. I tested scalar_rgb, packet_rgb, gpu_rgb, scalar_spectral, and packet_spectral modes, they all approximately match the...

tszirr