for maya 8 and before this still works as a good hack for building sss shaders.This tutorial is mostly just for me but whomever out there that has had problems with the Miss_Fast_Skin shader in Mental ray and realize that there is only a few sites out there that host comprehensive tutorials on the subject matter. For those of you that have used this shader in the past and can contribute helpful info please chime in at anytime. This tutorial will be a WIP untill I can reduplicated photo-realistic skin in mental ray.
First the basics (I'm being very specific cause I haven't found a way to figure out any way to determine Scale Conversion based on the scale of the objects in the scene.... anyone?)
-Create an empty scene-file with units set to Centimeters.
-Create a sphere (at 0,0,0 and set scale to 4xyz) and the subdivisions set to 50axis 50height.
- Create a Misss_Fast_Skin shader from the mental ray nodes in the hypershade.
- Now its time for pictures
-Graph the shading group of the misss_fast_skin in the hypershade
-open up the attribute editor for the skin shader and click chess box in the lightmap attribute.
-clone the below settings
- we are going to load a arbitrary file to write this file to so either create a .iff/tif file to use or load a pre-existing one from the default image folder in maya.
-Next were going to open up the attributes for the Misss_fast_Skin shading group. and create add in our lightmap. Click the chess button in lightmap and choose Misss_Fast_lmap_maya. Follow the images before for more specific instructions.
- Graph your network and it should look like this
- Open up the attributes for the miss_fast_lmap and middle mouse drag your MentalrayTexture1 into the Lightmap Write.
