Bug 905 - LidarBiStatic1 demo yields 0 photons
Summary: LidarBiStatic1 demo yields 0 photons
Status: RESOLVED FIXED
Alias: None
Product: DIRSIG4
Classification: Unclassified
Component: LIDAR (show other bugs)
Version: 4.4.2-beta
Hardware: Other Other
: P5 normal
Assignee: Scott D. Brown
URL:
Depends on:
Blocks:
 
Reported: 2011-12-08 10:33 EST by Scott D. Brown
Modified: 2011-12-08 12:22 EST (History)
1 user (show)

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Description Scott D. Brown 2011-12-08 10:33:17 EST
I was running through the lidar demos in prep for the 4.4.2 release and noticed that this demo doesn't appear to be working.
Comment 1 Adam Goodenough 2011-12-08 12:22:16 EST
This ended up being an out of order construction of the transform matrix. The fix was to swap two matrices in the construction in order to do a flip (needed for the local up-vector of a platform) before anything else. I think that this used to work because of some issues in movement that have since been resolved.

The scope of this problem and the fix should be very small, only affecting sources mounted on platforms with a spatial offset.