terk-dsn

terk-dsn

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how to create boneCapture attribute via python Feb. 22, 2021, 3:24 p.m.

Sorry for necro-posting, but this thread still pops up as the 1st result in google on the boneCapture subject.
In case someone else would get here...

THE SOLUTUTION:
Capture Attribute Pack/Unpack nodes:
https://www.sidefx.com/docs/houdini/nodes/sop/captureattribpack.html [www.sidefx.com]
https://www.sidefx.com/docs/houdini/nodes/sop/captureattribunpack.html [www.sidefx.com]

Unpack the attrib to a regular attribs, do whatever you want with python/vex, pack them back.
The boneCapture attrib itself stays "a special snowflake" and you can't/shouldn't modify it directly. (I geuess, SideFX does some performance-optimised C++-side mumbo-jumbo when this attrib is set, so you shouldn't be editing it after packing anyway).

Setting frame camera for RenderMan Oct. 11, 2013, 6:48 p.m.

Is there a way to set “frame camera” for RenderMan in Houdini?
I'm trying to specify a dicing camera different from render camera. There is “Reference camera” rendering parameter, which alows me to select between “world camera” and “frame camera”.
But I didn't find a way to mark some camera as a frame camera.