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Old 12-18-2008, 03:54 PM
Brett Lindberg Brett Lindberg is offline
Join Date: Jul 2008
Posts: 18
Question lat long mapped video

We have a couple of point grey ladybug cameras that record spherical video.
The video they take is normally saved as a lat-long/cylindrical panoramic mapped video.

We want to use this in an augmented reality setup: is there a good way to use this video as a panorama "skybox" in vizard, instead of the cube-map method?
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Old 12-19-2008, 08:21 AM
Brett Lindberg Brett Lindberg is offline
Join Date: Jul 2008
Posts: 18
(Prior to the post, I had textured a large sphere with the video, and it worked fine; it would be better, though, if the "sphere" were at an infinite distance)
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Old 12-19-2008, 10:08 AM
farshizzo farshizzo is offline
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Join Date: Mar 2003
Posts: 2,849
I downloaded a sample video from the Point Grey Ladybug website and used the following script to view the video:
import viz
import math

#Add panorama video
video = viz.add('video.avi',play=1,loop=1)

#Radius depends on aspect ratio of video
w,h,_ = video.getSize()
HEIGHT = 5.0
RADIUS = (w * HEIGHT) / (float(h) * 2.0 * math.pi)

#Add panorama cylinder
panorama = viz.add('pano_cylinder.ive',scale=(RADIUS,HEIGHT,RADIUS))

#Make sure panorama appears at infinite distance

#Keep panorama centered around main view,panorama,mask=viz.LINK_POS)

#Setup a panorama camera navigation
import vizcam
I've attached pano_cylinder.ive file to this post. It is simply a cylinder that faces inward. Let me know if this works for you.
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Old 02-25-2009, 07:41 PM
Brett Lindberg Brett Lindberg is offline
Join Date: Jul 2008
Posts: 18
Thanks: that worked great!
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