[Sidefx-houdini-list] unpremultiplied rendering?

Moritz Moeller realritz at virtualritz.com
Mon Jul 19 11:13:37 EDT 2010


On 07/19/2010 04:58 PM, John Coldrick wrote:
> 	Yeah, AFAIK there's no way to render this out directly.  You might want to 
> mention that every 3D software package in the world renders layers this way, 
> and many compositing packages like Nuke even have a handy button on the read 
> node to deal with this invisibly...

Not every. For example, 3Delight has a display driver flag,
"associatealpha", which can be set to zero to produce unpremultiplied
output.

I guess that could be a handy (yet dead easy to implement) addition to
Mantra as well, in a future Houdini version. :)

.mm



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