1. Geometric and Intelligent Computing Laboratory
Department of Mathematics and Computer Science
Drexel University

2. 3D Mesh File Formats
STL
SMF
OpenInventor
VRML

3. Minimal Vertex - Face only No colors, normals, or texture
Primarily used to demonstrate geometry algorithms

4. Full-Featured Colors / Transparency
Vertex-Face Normals (optional, can be computed)
Scene Graph
Lights
Textures
Views and Navigation

5. Simple Mesh Format (SMF)
Michael Garland
Triangle data
Vertex indices begin at 1

6. Stereolithography (STL)
Triangle data
Face Normal

7. Open Inventor
Predecessor to VRML
Scene Graph
More minimal

8. Virtual Reality Modeling Language (VRML)
SGML Based
Scene-Graph
Full Featured