Request : Renderman's Pathtracing SSS implementation

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Hello,

I am trying to anderstand and implement in Mantra some real skin SSS,
i came to the end result by experimenting that pathtracing SSS is the way to go.
But i'm just a newbie user of houdini and i have no background in maths or science,
given this paper for Renderman : RenderMan's Path traced SSS paper [graphics.pixar.com]
Can someone show how to implement this approach inside Mantra's custom shading ?

Attached image is my test so far (forget about the displace disgusting thing i'm sorry).

I hope this will challenge someone to make it ! as skin sss is like a graal for a lot of folks
including me )


Thanks for your feedback,

++

Attachments:
Challenge-1-08-01.0000.jpg (2.9 MB)

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