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View Full Version : Brdf Scattering Shader

migusan76
11-04-2004, 10:10 AM
Brdf Scatter shader is based on the research paper "A Practical Model for Subsurface Light Transport" by Henrik Wann Jensen. The shader implements a BRDF approximation of a bssrdf as described in the research paper. It can handle materials that look more like wax, jade, and porcelain type objects. With the right settings it can also look like other materials but won't look as good like a full BSSRDF. Use's no form of raytracing so the shader is as fast as a normal lambert depending on the shading network.

Brdf Scatter Shader (http://www.digiteck3d.com/pages/sections/tools/brdfScatter/brdfScatterShader.zip)
Os: NT/2000/XP
Maya Version: 4.0 / 4.5 / 5.0 / 6.0

http://www.digiteck3d.com/forum_images/brdfScatter/milkBrdf.jpg

http://www.digiteck3d.com/forum_images/brdfScatter/peachBrdf.jpg

http://www.digiteck3d.com/forum_images/brdfScatter/blueWax.jpg
migusan76
11-04-2004, 10:12 AM
skin shading sample

http://www.digiteck3d.com/forum_images/brdfScatter/migiSkinBrdf.jpg
migusan76
11-04-2004, 10:17 AM
Here is are a series of combination pass's to show the shader done in Maya 4.0

Here is the default lambert Shader
http://www.digiteck3d.com/forum_images/brdfScatter/lambertDragon.jpg

Here is the Brdf Scatter Shader version Pass
http://www.digiteck3d.com/forum_images/brdfScatter/brdfDragon.jpg

Here is the Brdf Scatter shader combined with an Occlusion Pass
http://www.digiteck3d.com/forum_images/brdfScatter/occlusionDragon.jpg

Here would be the final combination of Brdf Scatter shader + Occlusion + Hdri
http://www.digiteck3d.com/forum_images/brdfScatter/hdriDragon.jpg
scott2600
11-04-2004, 10:27 AM
WOW thanks man...... I cant wait to try it on some of my stuff.. I have tried all your other shaders and liked them, but this one is by far the best.. Thx a bunch. and keep up the good work writing shaders..
migusan76
11-05-2004, 02:29 AM
:thumbsup: Thanks scott2600, let me know what you think of it!:)
migusan76
11-05-2004, 02:30 AM
:thumbsup: Thanks scott2600, Let me know what you think of it :)
annaleah
11-05-2004, 08:42 AM
Thank you migusan76!
migusan76
11-05-2004, 10:36 PM
:) no Prob annaleah!
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