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gpepper
02-26-2005, 12:24 PM
Hi again everybody...
As some people ask me to do, I post this tutorial in the maya section. A lot of posts have been written on this subject, but nothing was done to explain the good creation of this shader in maya, so:

A lot of people seems to have problems to create and use the MISSS fast skin shader in maya. This tutorial would help you to understand...



-Create the shader, miss fast skin...

In the lightmap slot, click:

http://gpepper.free.fr/tut/sss/lightmap.jpg

and enter that:

http://gpepper.free.fr/tut/sss/map.jpg

-then click in the hypershade select the miss fast skin SG and in the hypershade assign the lightmap to the lightmap slot of the shading group:

http://gpepper.free.fr/tut/sss/light.jpg

then reassign the mental ray texture to the lightmap write slot of the lightmap:

http://gpepper.free.fr/tut/sss/text.jpg

then the network of your SG should look like this:

http://gpepper.free.fr/tut/sss/network.jpg

Don't forget to tweak the scale conversion if the ss is too high or too low...

http://gpepper.free.fr/tut/sss/scale.jpg


the result:

http://gpepper.free.fr/tut/sss/test.jpg

and the file in maya 6.5:

http://gpepper.free.fr/tut/sss/sss.mb

This tutorial works if you use maya 6, but the file attached to this post is a maya 6.5 file...

You can now follow this link on that great tutorial :

SSS Skin tutorial (http://www.lamrug.org/resources/doc/sss-physical-tutorial.pdf)

The file for this tutorial are there :

SSS Skin files (http://www.lamrug.org/resources/doc/sss-skin-tutorial-files.zip)

Thanks to LAMRUG (http://www.lamrug.org/) for these ressources !

Sphere♥
02-26-2005, 12:59 PM
Or, as has been pointed out by Zap many times, to make it dead simple, simply change your createAndAssignShader.mel (scripts/startup) with Zap's sss one found on LAMRUG (http://www.lamrug.org/resources/code/createAndAssignShader.mel). It will do all that for you and appropriatly scale the lightmap.

floze
02-26-2005, 01:49 PM
The lightmap's resolution 'Width' should be doublesize (2x) of your renderings' x-resolution and 'Height' should be the same as y-resolution. So if you render out a 320x240 pixel frame it should be 'Width' 640 and 'Height' 240. That's the recommended setting at least.

Jozvex also wrote a great tutorial about it:
http://www.highend3d.com/maya/tutorials/misss/

PS: What's that funny error in your 4th pic? ;)

gpepper
02-26-2005, 03:53 PM
The lightmap's resolution 'Width' should be doublesize (2x) of your renderings' x-resolution and 'Height' should be the same as y-resolution. So if you render out a 320x240 pixel frame it should be 'Width' 640 and 'Height' 240. That's the recommended setting at least.

Jozvex also wrote a great tutorial about it:
http://www.highend3d.com/maya/tutorials/misss/


thank you for these precise details! I forget that point ! I didn't know that tutorial ! so, is my tutorial really helpful? :p

PS: What's that funny error in your 4th pic?

Are you talking about the shader library ?
Probably because I didn't install it ! it takes space and I don't use it...

wlidea
02-26-2005, 04:17 PM
very thx your Tutorial :thumbsup: great!

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