pSSSt....

Stahlberg · 2004-08-11 23:18:31 UTC

The easiest way is probably with Francesca’s mix8Layer node.

the_zed_axis · 2004-08-12 02:36:11 UTC

could you give me a link for the ‘node’ i cant find anything with yahoo and the cgtalk search pointed back to this forum. think i missed it in all these posts arghghg

and how exactly do i connect the two --dirtmap and diffusion up ???

thanks in advance

Pixero · 2004-08-12 02:39:59 UTC

Yau can find mix8layer here: http://www.highend3d.com/maya/shaders/?sort=dt_modified+desc#3058

the_zed_axis · 2004-08-12 03:00:08 UTC

so err how do i connect the two shaders up using this node
thanks for the reply

sorry for the total dumbass questions

Pixero · 2004-08-12 03:15:58 UTC

Use the mix8layer as your objects material and connect the other shaders to it.
Mix8layers works much like layers in photoshop.

the_zed_axis · 2004-08-12 03:33:08 UTC

so i am connecting the outvalue of dirtmap to the illum channel of the diffuse and the outvalue of diffuse to a layer in the mix8node
does that mean that i can use my texture maps in the mix8 layers

mattcioffi · 2004-08-15 10:49:25 UTC

great tread!

i just posted a pic in the gallery using this shader.
http://www.cgtalk.com/showthread.php?t=162113

the connections i used where nothing not already mentioned. it was a little unpredictable at times – after i thought i got it right and moved the model i would get some artifacts. the belly for instance has a bit of a sharp shadow and the leg a little harse too. i think i need to get more familar with the settings – it’s very fast compared to the other sss shaders i’ve tried.

i tried it with HDRI the skin looked wierd so i ended up using two seperate passes – HDRI and a keylight pass and mixed them.

Firas · 2004-08-16 08:14:42 UTC

its realy nice that am working on human character, and i was just playing with this shader.

the output is something nice … very fast to render comparing to the output :

aadams · 2004-08-17 16:48:04 UTC

I love the ways the shader looks, and the enthusiam of the group here. . .I have read almost every post on this thread and yet i still cant get it to work.

maya crashes every time i click the new shaders in hypershade…so I loaded a scene someone else works on, scene loads but doesnt render (errors in the output window)

I have copied paste revised and rerevised the .rayrc file

what could I be doing wrong?

mind you, this is after I scoured the thread

if you know what I am doing wrong, please let me know, i implore you! I can live without the shader, but not with not knowing why it doesnt work!:sad:

thanks in advance

maya 6.0
mental ray: version 3.3.1, 12 Mar 2004

output window:

LINK 0.0 error 191007: cannot load C:\Archivos de programa\Alias\Maya6.0\mentalray/lib/mrLibrary.dll, No se puede encontrar el módulo especificado.
LINK 0.0 error 191007: cannot load C:\Archivos de programa\Alias\Maya6.0\mentalray/lib/gg_mray_shaders.dll, No se puede encontrar el módulo especificado.
LINK 0.0 error 191007: cannot load C:\Archivos de programa\Alias\Maya6.0\mentalray/lib/lume.dll, unknown error code 193, check Win32 manual
LINK 0.0 error 191007: cannot load C:\Archivos de programa\Alias\Maya6.0\mentalray/lib/RayType.dll, No se puede encontrar el módulo especificado.
LINK 0.0 error 191007: cannot load C:\Archivos de programa\Alias\Maya6.0\mentalray/lib/JS_Reverse.dll, No se puede encontrar el módulo especificado.
LINK 0.0 error 191007: cannot load C:\Archivos de programa\Alias\Maya6.0\mentalray/lib/mix8vector.dll, No se puede encontrar el módulo especificado.
LINK 0.0 error 191007: cannot load C:\Archivos de programa\Alias\Maya6.0\mentalray/lib/mrLibrary.dll, No se puede encontrar el módulo especificado.
LINK 0.0 error 191007: cannot load C:\Archivos de programa\Alias\Maya6.0\mentalray/lib/mray_shaders.dll, No se puede encontrar el módulo especificado.
LINK 0.0 error 191007: cannot load C:\Archivos de programa\Alias\Maya6.0\mentalray/lib/[shader name].dll, No se puede encontrar el módulo especificado.
MI 0.0 error 121417: C:/Archivos de programa/Alias/Maya6.0/mentalray/maya.rayrc, line 119: cannot find $include file “C:\Archivos de programa\Alias\Maya6.0\mentalray/include/[shader name].mi”

my maya.rayrc:

#*****************************************************************************

Copyright 1986-2003 by mental images GmbH & Co.KG, Fasanenstr. 81, D-10623

Berlin, Germany. All rights reserved.

#*****************************************************************************

Evaluated at startup time of the plug-in to fill the mental ray registry.

#*****************************************************************************/
registry “{MAYABASE}” value “C:\Archivos de programa\Alias\Maya6.0\mentalray” end registry
registry “{AUX_LIBS}” value “C:\Archivos de programa\Alias\Maya6.0\mentalray” end registry
registry “{PD_START}” value “C:\Archivos de programa\Alias\Maya6.0\mentalray” end registry
registry “{SYSTEM}” value “windows” end registry
registry “{DSO}” value “dll” end registry
$lookup “{MAYABASE}”
$lookup “{SYSTEM}”
$lookup “{DSO}”
################################################## ###########

List all auxiliary libraries here…

################################################## ###########
registry “{MRLIB_START}”
link “{AUX_LIBS}/lib/mrLibrary.{DSO}”
echo “mrLibrary startup”
end registry
################################################## ###########

List all Maya shaders here…

################################################## ###########
registry “{MRMAYA_START}”
link “{MAYABASE}/lib/base.{DSO}”
link “{MAYABASE}/lib/physics.{DSO}”
link “{MAYABASE}/lib/mayabase.{DSO}”
link “{MAYABASE}/lib/contour.{DSO}”

mi “{MAYABASE}/include/mayabase.mi”
mi “{MAYABASE}/include/base.mi”
mi “{MAYABASE}/include/physics.mi”
mi “{MAYABASE}/include/contour.mi”

echo “mental ray for Maya - startup done”
end registry

#############################################################

List all Public Domain shaders here…

#############################################################
registry “{PD_START}”
link “{MAYABASE}/lib/gg_mray_shaders.{DSO}”
link “{MAYABASE}/lib/lume.{DSO}”
link “{MAYABASE}/lib/Diffusion.{DSO}”
link “{MAYABASE}/lib/Dirtmap.{DSO}”
link “{MAYABASE}/lib/Diffraction.{DSO}”
link “{MAYABASE}/lib/RayType.{DSO}”
link “{MAYABASE}/lib/JS_MultiplyDivide.{DSO}”
link “{MAYABASE}/lib/JS_Luminance.{DSO}”
link “{MAYABASE}/lib/JS_Ramp.{DSO}”
link “{MAYABASE}/lib/JS_wood.{DSO}”
link “{MAYABASE}/lib/JS_Reverse.{DSO}”
link “{MAYABASE}/lib/mix8vector.{DSO}”
link “{MAYABASE}/lib/mrLibrary.{DSO}”
link “{MAYABASE}/lib/mray_shaders.{DSO}”
link “{MAYABASE}/lib/skin_material.{DSO}”
link “{MAYABASE}/lib/show_values.{DSO}”
link “{MAYABASE}/lib/perlin2.{DSO}”
link “{MAYABASE}/lib/microstructure.{DSO}”
link “{MAYABASE}/lib/freckle.{DSO}”
link “{MAYABASE}/lib/skin.{DSO}”
link “{MAYABASE}/lib/show_edges.{DSO}”
link “{MAYABASE}/lib/perlin.{DSO}”
link “{MAYABASE}/lib/mandel.{DSO}”
link “{MAYABASE}/lib/black_points.{DSO}”
link “{MAYABASE}/lib/MR_cpvShader.{DSO}”
link “{MAYABASE}/lib/[shader name].{DSO}”

mi “{MAYABASE}/include/gg_mray_shaders.mi”
mi “{MAYABASE}/include/lume.mi”
mi “{MAYABASE}/include/Diffusion.mi”
mi “{MAYABASE}/include/Dirtmap.mi”
mi “{MAYABASE}/include/Diffraction.mi”
mi “{MAYABASE}/include/RayType.mi”
mi “{MAYABASE}/include/JS_MultiplyDivide.mi”
mi “{MAYABASE}/include/JS_Luminance.mi”
mi “{MAYABASE}/include/JS_Ramp.mi”
mi “{MAYABASE}/include/mix8vector.mi”
mi “{MAYABASE}/include/mray_shaders.mi”
mi “{MAYABASE}/include/skin_material.mi”
mi “{MAYABASE}/include/show_values.mi”
mi “{MAYABASE}/include/perlin2.mi”
mi “{MAYABASE}/include/microstructure.mi”
mi “{MAYABASE}/include/freckle.mi”
mi “{MAYABASE}/include/skin.mi”
mi “{MAYABASE}/include/show_edges.mi”
mi “{MAYABASE}/include/perlin.mi”
mi “{MAYABASE}/include/mandel.mi”
mi “{MAYABASE}/include/black_points.mi”
mi “{MAYABASE}/include/JS_wood.mi”
mi “{MAYABASE}/include/JS_Reverse.mi”
mi “{MAYABASE}/include/MR_cpvShader.mi”
mi “{MAYABASE}/include/[shader name].mi”

echo “mental ray for Maya - pd startup done”
end registry

##############################################

LOAD ALL THE STUFF IN THE RIGHT ORDER HERE

##############################################
$lookup “{MRLIB_START}”
$lookup “{MRMAYA_START}”
$lookup “{PD_START}”

aadams · 2004-08-18 11:53:17 UTC

the agony continues…i just installed 6.01(you know just trying to see maybe how it went wrong)

and it still crashes.

I press the icons and maya freezes for 5 sec. and then disappears…

has this happened to anyone else??

what did you guys do to fix the problem?

hhhuuuumpht.

mattcioffi · 2004-08-19 10:54:33 UTC

Aadams: i read your posts really quit – but in the error message you posted the “/” switch direction in the paths maya’s not finding – maybe your rayrc file has the "/"going the wrong way. :shrug:

aadams · 2004-08-19 11:20:18 UTC

thanx matt, but i tried juggling them back and forth and to no evail…which one should I use?

/ or \

pout…I wanna harness the hidden power of mental ray too pout pout…

mattcioffi · 2004-08-19 17:15:17 UTC

“/”

you’re gonna want to make sure the ".dll"s and ".mi"s are in the right place too.

aadams · 2004-08-20 11:34:53 UTC

yes they have been put in the mental ray include and library folders.

could u post your?

along with where u put all your files so I can correlate?

annaleah · 2004-08-21 10:52:46 UTC

Thank you francescaluce…
This is what I was refering to in my PM to you…I just now had seen this shader.
Excellent work.
Thanks again.

francescaluce · 2004-08-21 10:57:50 UTC

eh…eh… so you were looking for the shaders from someone else… coz I made just the port

ciao
francesca

annaleah · 2004-08-21 11:13:03 UTC

Well thanks for the port then.

Pony · 2004-08-22 21:35:50 UTC

yessss… sahWeet :love: :buttrock: :bounce:

pleasurehead · 2004-08-27 03:01:39 UTC

Hello everyone thanks for the shader and info im new to mental ray and im having a problem with this shader, i get good sss on my character until i turn on raytrace shadows then it dissapears. this has only happened on surfaces with openings and it may have to do with the fact that the character is subd’s. the sss appears extreme around the openings in the model then dissapears when the shadows are turned on. Any suggestions mental ray wizards thanks

pleasurehead · 2004-08-30 13:16:38 UTC

excuse me mattcioffi

I am having that same problem with the artifacts you described above. the renders are almost exactly just how i want them except for a few dark polygonal artifacts at the base of the neck. how did you deal with this if you dont mind me asking. could it have something to do with the fact that im using maya subd surfaces?