LukasRuppert

## Summary `warp::square_to_von_mises_fisher` returns nan, when the sample is exactly [0.5, 0.5]. ## System configuration - Platform: openSUSE Tumbleweed (same issue on Ubuntu 20.04) - Compiler: GCC 10.2.1 - Python...

Hi, with the updated version of nanogui, you're also using a few C++17 features, e.g. [here](https://github.com/mitsuba-renderer/nanogui/blob/0146a88b2214cd5c5c29e6dfa8d3d3d0e9ab6d9d/include/nanogui/traits.h#L35). You may want to adjust the `ext/CMakeLists.txt` to use C++17 or even C++20 when...

Hi, I was looking at the equations for Fresnel reflectance between a dielectric and a conductor in [Eq. 8.3](https://www.pbr-book.org/3ed-2018/Reflection_Models/Specular_Reflection_and_Transmission#eq:frcond), but cannot find the definition for the term **a** in the...

Hi, I just had a look through the code and found what looks like a simple copy-paste bug. When blitting to the screen, the stencil bit would be set instead...