On 8. Sep 2010, at 11:41, Aren [via Software] wrote:
> Hi, > I want to add mouse pick(select an object after click) support to > my application, but I confuse about where to add intersecting code. > > First I try to add it to Config::handleEvent(), but failed, because > intersecting needs viewport and projection matrix (I call glGet to > get them)which are empty or not initialized yet. I tend to avoid glGet wherever possible. For this code you don't need them since you have all the data in the event itself. See the attached (quick&dirty) patch for doing the picking locally in the Channel. This code can (and should) easily be placed in Config::handleEvent. > Then I remove them to Channel::processEvent(), it can do > intersecting correctly. In my FrameData, there's an objectID refer > to selected object. After intersecting , I reset objectID in > FrameData. But it seems client nodes > haven't get the new objectID. The client-side FrameData object is never committed, since the master instance is on the application. Therefore the clients never get updated. Do the event handling in Config::handleEvent and things should be fine. Cheers, Stefan. -- View this message in context: http://software.1713.n2.nabble.com/mouse-pick-tp5509857p5549484.html Sent from the Equalizer - Parallel Rendering mailing list archive at Nabble.com.
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