PLY 3D model viewer based on HTML5 canvas on 2D contex

Features:

3D operations: rotating, moving object center
Directional light
Highlighting edges
Painter's algorithm for sorting polygons
Optimizations:
- Skip outputting of invisible polygons
- Skip processing of duplicated points, normals

Max allowed: 12 fps 24 fps 48 fps 60 fps 72 fps 100 fps 120 fps