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Getting sss to work with point instance procedural


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#1 mikelyndon

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Posted 29 May 2012 - 08:27 AM

Hey guys,

I was hoping someone could enlighten me as to why I can't get sss to work with the point instance procedural.  I'm using pbr.  If I turn all components of the surface shader off except for sss and try single scatter the instance object renders black.  If I attempt to render with multi scatter the render seems to get stuck on generating the point cloud.

Thanks

Mike

#2 br1

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Posted 29 May 2012 - 10:12 AM

View Postmikelyndon, on 29 May 2012 - 08:27 AM, said:

Hey guys,

I was hoping someone could enlighten me as to why I can't get sss to work with the point instance procedural.  I'm using pbr.  If I turn all components of the surface shader off except for sss and try single scatter the instance object renders black.  If I attempt to render with multi scatter the render seems to get stuck on generating the point cloud.

Thanks

Mike

Do you have an example file we could try ?

#3 mikelyndon

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Posted 03 June 2012 - 08:57 PM

View Postbr1, on 29 May 2012 - 10:12 AM, said:

Do you have an example file we could try ?

Here's a simple setup to look at.  The sphere on the left renders with sss fine but the instanced object doesn't display single scatter sss in the render.  And if I turn on multi scatter it doesn't even render.

Attached Files



#4 eetu

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Posted 21 June 2012 - 01:06 AM

This was in today's journal:

Quote

Houdini 12.0.663: Fixed sub-surface scattering to work with point instancing by introducing a new scope, "scope:self", which allows scopable raytracing operations to safely restrict themselves to only the currently shading object.

A shitty theory is better than no theory at all




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