Taichi SDF toy

Figure: result of python3 pKlein.py. :-)

Just messing with Taichi voxel challenge. https://github.com/taichi-dev/voxel-challenge

Taichi lang documentation: https://docs.taichi.graphics/

Mouse and keyboard interface:

• Drag with your left mouse button to rotate the camera.
• Press W/A/S/D/Q/E to move the camera.
• Press P to save a screenshot.