Convert Mesh to Color Voxel

Take .ply mesh format as input, convert it into voxel with color (rgba).

Requirement

• c++11: for the package tinyply.
• numpy

Usage

Take the largest face inside the cube (voxel) to represent to color.

make MAX
./mesh2vox_max [input ply file] // output file is .dat

Take weighted mean (by area size of faces) for the color of the voxel.

make MEAN
./mesh2vox_mean [input ply file] // output file is .dat

Visualization

python3 read_buffer.py // generate .ply point cloud for visualization

Use tools like meshlab to open the .ply file.

References

• tinyply: https://github.com/ddiakopoulos/tinyply
• 3d polygon area: http://geomalgorithms.com/a01-_area.html
• triangle test: http://blackpawn.com/texts/pointinpoly/
• triangle cube intersect test: http://www.realtimerendering.com/resources/GraphicsGems/gemsiii/triangleCube.c