peterk

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• Alright I found the solution. to really turn off opengl, it takes the command with an underscore, i.e. $expyriment.control.defaults.open_gl=0. Then it doesnt work anymore. The way I did it, apparently it doesnt turn opengl really off. Interestingly…

  in If opengl is set to 'False', is code execution on hold? Comment by peterk January 2019
• Hmm, seems like they dont... Here's what I've done: in terminal $python $import expyriment $expyriment.control.run_test_suite() => 1) Visual stimulus presentation * horizontal dots like in attached figure [no color but looked more similar to t…

  in If opengl is set to 'False', is code execution on hold? Comment by peterk January 2019
• (Image) So I've tested both (open gl 0 vs. 2) and ran a number of trials and collected the stimulus presentation times of 2 stimuli (A and B ) from the xpe file. Attached graphic shows the Inter-Stimulus Intervals (time B - time A), which were set…

  in If opengl is set to 'False', is code execution on hold? Comment by peterk January 2019
• Okay, so if open gl is turned off, it will update the screen at any state of the vertical retrace and just go on, with the code immediately. If it is on, it will wait until the retrace starts at the upper left, refresh the screen, and then go on wit…

  in If opengl is set to 'False', is code execution on hold? Comment by peterk January 2019
• Update: I did it now using pygame's pygame.key.get_pressed() command and the wait method for defining the speed of the moving slider.

  in Detecting keyup-events Comment by peterk August 2018
• Hmmm couldn't make it work for my purpose. During the waiting time until the keyup event happens, I don't see how I can continuously change and update the position of the slider on the screen... Is there a way to use the check method? I am thinking …

  in Detecting keyup-events Comment by peterk July 2018