[Sidefx-houdini-list] Houdini Camera CropXY question.

Jeffery Beeland dbeeland at comcast.net
Sat Aug 26 01:46:06 EDT 2006

Hi Leo,

Someone can correct me if I'm wrong, but I'm pretty sure winx and winy 
are simply 2d pans.  It's similar to what could also be called a camera 
"principal" value in other packages.  If I had to guess, and understand 
that I don't have Maya in front of me to try, I would assume that the 
Film Offset attribute that you mentioned in your mail would be the 
correct way to translate those values from Houdini.  The question is 
what unit of measure does Maya use for that attribute; if you can find 
that in the maya docs somewhere, I think you'll be on the right track.


Leo wrote:

> Hi,
> I am trying to convert a Houdini cam to Maya.  Everything seems to be 
> fine except the "Window X/Y" of "Crop" tab in the camera op.  it is 
> /winx and /winy.
> I am not exactly sure how this value can be converted and used in 
> Maya.  I've tried converting mm/cm/inch in Film Offset and Film 
> Translate of Maya attribues...but i can not seem to get it..
> if anyone have done this manually, could you please tell me what must 
> be done?  And for me to better understand it would be great if you 
> could also explain to me the difference.  Thx!
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