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--- resources:grogu_setup [2024/03/06 13:33] – [Tested 3DPixx with MATLAB PTB] admin
+++ resources:grogu_setup [2024/03/07 10:32] (current) – [Third Try] admin
@@ Line 10: / Line 10: @@
 ====== Third Try ======
+-02-20
 In summary, Second Try to install VPixx 3DPixx was doomed by having copied the wrong file to ''/usr/share/X11/xorg.conf.d/xorg.conf''.
@@ Line 366: / Line 368: @@
 VPixx (Lindsey Fraser from technical support responding on behalf of Sophie Kenny) replied to me within an hour!  Based on the detailed email instructions, I did both of these things:
-. Changed line 62 of DatapixxImagingStereoDemo.m
+===== 1. Changed line 62 of DatapixxImagingStereoDemo.m =====
 Changed the argument from "2" to "5":
@@ Line 383: / Line 386: @@
 This made it so that the LCD glasses at least started flickering.  They were badly out of phase or frequency, so that there was no stereopsis at all, however.
-. Deleted ''/usr/share/VPixx Software Tools/'' directory and installed latest version of VPixx software tools from their website ([[https://docs.vpixx.com/download/|https://docs.vpixx.com/download/]]).
+===== 2. Deleted /usr/share/VPixx Software Tools/ directory and installed latest version of VPixx software tools from their website =====
+([[https://docs.vpixx.com/download/|https://docs.vpixx.com/download/]]).
 This installed everything to ''/usr/local/share/VPixx Software Tools''.
@@ Line 542: / Line 548: @@
 <code matlab>
+% Hardware stereo buffers are a great idea, but they just seem to be broken on so many systems.
+% Set to 1 to try it out, or set to 0 to implement software frame-alternate buffers.
+useHardwareStereo = 0;
+[... many lines later: ...]
 % Prepare pipeline for configuration. This marks the start of a list of
     % requirements/tasks to be met/executed in the pipeline:
@@ Line 612: / Line 624: @@
 Ironically, perhaps, there are now some extra flashes and flickers that seem to happen when the background of the display changes, although fortunately not when the letter stimuli appear.
+I tried uncommenting-out (turning on) this line:
+<code matlab>
+   Datapixx('SetVideoStereoVesaPhase',0); % Added 2024-02-28 by adc to try getting rid of drifting horizontal band
+</code>
+Result: band moves around now = worse than before.  Will comment the line out again.