Isotropic Lighting Models Comparison (With Sample)

[Zaknafein]

During the last couple of days, I studied 5 different isotropic (i.e. not anisotropic) specular reflection models, and wanted to find the best all-around one, and what are the advantages/disadvantages of each.

So here is the realtime sample that accompanies the PDF/DOCX paper that I released a couple of days ago in the Beta Discussion forum.

http://www.zaknafein.hjcrusaders.com/samples/IsotropicLightingModels/IsotropicLightingModels.rar [VB 2005, 773 Kb]

And links to the paper itself...
http://www.zaknafein.hjcrusaders.com/samples/IsotropicLightingModels/Isotropic%20lighting%20models%20comparison.pdf [1.2Mb PDF 5]
http://www.zaknafein.hjcrusaders.com/samples/IsotropicLightingModels/Isotropic%20lighting%20models%20comparison.docx [1.2Mb Original Word 2007 Document]

Hope this is useful to some of you!

[darkforever]

so did you find which one beats others?

[Zaknafein]

Yep, like said in the end of the paper (conclusion section), Lyon is the most usable one in all situations. Phong is great too (and faster than Lyon) but produces less realistic reflections.

[Zaknafein]

Necro-bump GO!

I've redesigned that sample completely, rewrote it in C#3 using my component framework (added stuff to that as well since the last time I posted it), optimized the shader and added different techniques, most of which is documented a blog entry I just posted.

New download link : http://theinstructionlimit.com/wp-content/uploads/2009/06/IsotropicModels.zip