IGL_LIB file formats

• .dmat uncompressed ASCII/binary files for dense matrices
• .bf ASCII files for representing skeletal bone "forests"
• .tgf ASCII files for representing control handle graphs
• .off Geomview's polyhedral file format
• .obj Wavefront object file format. Usually unsafe to assume anything more than vertex positions and triangle indices are supported
• .mesh Medit's triangle surface mesh + tetrahedral volume mesh file format, see page 33, section 7.2.1
• .poly Piecewise-linear complex. This format comes in many similar but importantly different flavors: triangle's, tetgen's, pyramid/SVR's
• .node
• .ele
• .face