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WorldWideTelescope / wwt-windows-client

WorldWide Telescope Windows Application
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Rendering of points plotted in layer manager inconsistent across computers #72

Open patudom opened 8 years ago

patudom commented 8 years ago

We're having issues with a tour I created for Astro 101 labs at Bucknell. We used the layer manager to plot Big Dipper stars in blue (and there's a background star plotted in red, and the Sun in yellow). I can't reproduce the issue they're having at Bucknell on my computers, but my colleague Kristen sent me these screen shots.

When they pan around in the view on the Bucknell computers, the blue Big Dipper overlays randomly come and go when they should remain on the screen all the time. (They are always all on screen on 2 different computers I tested at Harvard - a Dell running Win 10, and a Dell running Win 7). I thought maybe they needed to check "show far side markers," but doing that didn't fix the problem. Any ideas what could be causing the problem?

Here is a view with the stars all plotted (on the Bucknell computers - Dell Optiplex 7020, running Win 7): seconddottest3-mostlyallthere

Here is a view (also from the Bucknell computers) that has been turned slightly, and some of the plotted blue stars disappear. seconddottest2-touropen

Github won't let me post the tour, so Jonathan and Doug, I will email it to both of you.

The Bucknell team is hoping to publish this tour as part of an NSF-funded series of Astro 101 labs, but we can't do so without understanding what causes the plotted layer points to behave poorly. Thanks!

patudom commented 8 years ago

If it helps, this is the graphics card on the Bucknell computer.

Display adapter: AMD Radeon R7250