Experiments with Taichi Language for 3d EM visualization and image processing.

Main routines for various apps are files with app_ prefix.

The path tracing rendering implementation was taken from the excellent Taichi Voxel Challenge repository. An attempt was made to use Bell's virtual trackball algorithm instead of the original voxel challenge tracking system, and the look at point is the center of the 3d data so rotations are about its center.

Installation

1. Install taichi

pip install taichi

2. Download the grayscale data from Dropbox and store it into the data subdirectory:

256 x 256 x 256 voxel cube -- use preferentially since code assumes it. https://www.dropbox.com/scl/fi/5jp36gat2ipf4g2ni7ig2/hemibrain_subvol_256x256x256.bin?rlkey=keey6wehk8qby75ht2blmcx0c&dl=0

512 x 512 x 512 voxel cube. https://www.dropbox.com/scl/fi/ftefxipjajmnfo37glsa3/hemibrain_subvol_512x512x512.bin?dl=0&rlkey=ejgtgfc9ajexe26e5jc6wksw9

3. Run one of the main files which start with app_ prefix:

python app_pathtrace.py