Description
Environment
Operating System: Linux Mint 22
Commit SHA: 5ff0ed (Latest of Master)
Describe the bug
I'm writing an nvdb visualizer, with voxel values mapped to RGB values to be displayed. I'm rendering via ray marching with nanovdb::math::firstActive(), however with the current firstActive implementation voxels may be skipped when the ray is coming to the voxel at specific angles, producing artifacts as seen below.
Expected behavior
There is an issue and subsequent pr that addresses this. Since it's a few years old and hasn't been merged, I decided to make a new issue to bump it near the forefront again. When the fixed code is implemented, rendering works fine as seen below.
Additional context
The pr uses a delta value of 0.005f. I find 0.001f is better as sometimes the ray will skip through corners and produce artifacts as seen below.
