camera from perspective

[mondog_1]

Does anyone know if the Perspective camera's translation/rotation is exposed ot queryable? i'm trying to replicate the funcionality that Max has when you create a new camera from the current perspective view.

Thanks
Mondo

[jhn]

In motionbuilder you're always in a camera... producers perspective is a camera too, so if you could figure out which camera is current, you should be fine, I think..

-Johan

[_KxL_]

to get current camera use:

lSystem = FBSystem()
lCurrentCamera = lSystem.Renderer.CurrentCamera

KxL

[mondog_1]

Hi,

So it's taken me a while to re-visit this task! Thanks KxL for the tip, you got me on the right track.

I have the script working now and everything's perfect as long as i don't use the Producers persepective. No matter where i place it, i get the same values for T and R. T: (0, 145, 30) R: (-90, 80, -90). I really want this to work from the Producers perspective as this is how we sight new shots.

I've tested it via through one of the script created cams and it works fine. Is there any way to specifically expose the producers perspective transforms?

This is where i'm at script-wise:

from pyfbsdk import *

#Cast current camera - should be perspective view
lSystem = FBSystem()
lCurrentCamera = lSystem.Renderer.CurrentCamera 

#Declare some variables to get transformation of Perspective Camera
position = FBVector3d()
rotation = FBVector3d()

#Query the current camera's position and rotation
lCurrentCamera.GetVector (position, FBModelTransformationMatrix.kModelTranslation)
lCurrentCamera.GetVector (rotation, FBModelTransformationMatrix.kModelRotation)

#debug infos
print "translate X = %s" % position
print "translate Y = %s" % position
print "translate Z = %s" % position

print "rotate X = %s" % rotation
print "rotate Y = %s" % rotation
print "rotate Z = %s" % rotation

# Create New Camera, Make it visible, set it up with the values required
lNewCamera = FBCamera("Camera")
lNewCamera.Show = True

#Set it's position to match the current camera
lNewCamera.SetVector( position, FBModelTransformationMatrix.kModelTranslation)
lNewCamera.SetVector (rotation, FBModelTransformationMatrix.kModelRotation)

lNewCamera.Selected = True

#Clear Local Variables
del( lSystem, lCurrentCamera, position, rotation, lNewCamera)

If i query

lCameraCurrent.Name

, it tells me that it's the producers perspective.

Any help would be much appreciated.

Thanks
Mondo

[_KxL_]

Problem is, that system cameras do not use those values. As for now I can't find a solution for your problem, but if I came with something useful I will post it here.

Cheers!

[djtomservo]

Firing this back up since I'm trying to do the same thing. I found a hack that worked in 2010, but sadly it doesn't seem to work in 2011. If you constrain Producer Perspective to itself, you can get back the actual .Translation, but again, this doesn't look like it works in 2011:(