#jogamp @ irc.freenode.net - 20160318 05:05:30 (UTC)


20160318 05:05:30 -jogamp- Previous @ http://jogamp.org/log/irc/jogamp_20160317050530.html
20160318 05:05:30 -jogamp- This channel is logged @ http://jogamp.org/log/irc/jogamp_20160318050530.html
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20160318 07:54:52 <elect> hi
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20160318 08:30:45 <Eclesia> good morning
20160318 08:33:26 <bruce-> https://vimeo.com/159349369/4ba984a663
20160318 08:36:09 <monsieur_max> hello guys
20160318 08:40:33 <monsieur_max> bruce-: i like the ambient music
20160318 08:47:43 <bruce-> cool, my coworker and good friend made it
20160318 08:50:18 <bruce-> I did the programming for the installation
20160318 09:08:20 <elect> how are they rendered?
20160318 09:09:02 <monsieur_max> bruce-: ah programming that is used for real hardware thing, must be cool :)
20160318 09:10:18 <elect> do you track using the kinect?
20160318 09:14:11 <bruce-> elect: it is really simple, projector + styrofoam semi spheres :)
20160318 09:14:27 <bruce-> I track using Kinect 2
20160318 09:23:54 <monsieur_max> nice
20160318 09:24:09 <bruce-> I made Java wrappers for Kinect 2
20160318 09:24:17 <bruce-> I should open source that some day
20160318 10:15:47 <elect> that'd be nice
20160318 12:23:12 <elect> rmk0, could you create a new user for the wiki?
20160318 12:28:57 <rmk0> elect: not sure i have that level of control
20160318 12:28:59 * rmk0 tries it
20160318 12:30:26 <rmk0> apparently i don't
20160318 12:30:33 <elect> :s
20160318 12:58:39 <Eclesia> woo, glClear is more expensive then I thought
20160318 12:59:39 <rmk0> Eclesia: worse, the cost is arbitrary, because the driver might work to determine if a clear call is unnecessary /o\
20160318 13:00:24 <rmk0> this is one of the reasons for explicitly specifying data dependencies in vulkan
20160318 13:00:28 <Eclesia> I was profiling my widget toolkit of a big table. and glClear is 60% of the time :/
20160318 13:00:40 <rmk0> profiling how?
20160318 13:00:45 <Eclesia> netbeans
20160318 13:01:03 <rmk0> don't think that's going to be very accurate
20160318 13:01:50 <Eclesia> for small values I can agree, but something that large can't be an error
20160318 13:02:57 <rmk0> i think you're running into cpu synchronization rather than the glClear call specifically being expensive
20160318 13:03:37 <Eclesia> 6 seconds for 10.000 calls
20160318 13:03:37 <rmk0> a cpu-side profiler that doesn't know anything about opengl is going to give strange-looking results
20160318 13:40:02 <elect> it cant be so expensive
20160318 13:40:18 <elect> rmk0 is right, you are measuring the cpu thread
20160318 13:40:43 <elect> you have to do this
20160318 13:40:44 <elect> https://github.com/elect86/jogl-samples/blob/master/jogl-samples/src/tests/gl_330/Gl_330_query_time.java#L167-L187
20160318 13:58:37 <rmk0> right
20160318 14:13:31 <elect> tell us if it changes
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20160318 17:00:14 <Eclesia> will do
20160318 17:00:21 <Eclesia> week end ! bye
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20160319 05:05:30 -jogamp- Continue @ http://jogamp.org/log/irc/jogamp_20160319050530.html