[X3D-Public] [WWW-Vrml] VisibilitySensor in LOD Level Browser Tests
John A. Stewart
alex.stewart at crc.ca
Tue Sep 22 13:52:12 PDT 2009
Russ;
My 0.02c. Just added some debug bits to the FreeWRL code.
>
> FreeWRL works initially, but once the LOD range is entered and the
> VisibiltySensor is activated, then the VisibiltySensor
> isActive TRUE no matter what –even when the red box is out of sight
> and out of mind.
FreeWRL uses hardware occlusion culling; when the VisibilitySensor is
switched out; it never gets redrawn, and thus, never goes inactive. It
needs at least one frame where it can "draw" the VisibilitySensor in
order to see whether it is there or not.
BTW - once again, I really like your tests, even if I may not like
reading the results; you have an interesting and refreshing grasp of
X3D.
-----------------------------------------------------------
John A. Stewart
Team Leader: Networked Virtual Reality
alex.stewart at crc.ca
Network Systems and Technologies -
Systemes et technologies des reseaux
Communications Research Centre Canada |
Centre de recherches sur les communications Canada
3701 Carling Ave. | 3701, avenue Carling
PO Box 11490, Station H | CP 11490, succursale H
Ottawa ON K2H 8S2 | Ottawa (Ontario) K2H 8S2
http://www.crc.ca
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