User’s Guides in PDF Format

Click links to view, right click to save. Requires PDF viewer such as the free Adobe Reader™. Left click to view or print, right click to save.

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GemCad Tutorial Videos on YouTube

Click on the links to open the YouTube player in a new window.

GemRay Demo Videos on YouTube

These videos demonstrate a test version of GemRay. There are some minor differences between the test version and the release version, but these give a good introduction. Click on the links to open the YouTube player in a new window.

  1. The animation player and lighting models
  2. Color
  3. Tilt and rotation animation
  4. Dispersion
  5. Optimizing angles, Part I
  6. Optimizing angles, Part II

New: GemCad Blog

Blog posts on how to use GemCad—mostly for intermediate to advanced level users.

Introducing
GemRay for Windows

rendering of Cube illusion triangle, rocking rendering of diamond tilting, rocking