scatterplot example currently fails on Linux about deck.gl

[ibgreen]

@kvey - Just tried the default example (npm start) on latest master (v2.4.6) and scatterplot renders as it should. Need more info to reproduce.

[kvey]

Operating System: X11 Linux x86_64
Screen Resolution: 1920 x 1080
Web Browser: Chrome 52.0.2743.116
Browser Size: 1918 x 920
Color Depth: 24 bit

commit: ea22779

[ibgreen]

@kvey - Hmm, that does not look good. Maybe this is a Linux issue?

We are going to set up a linux environment for testing, but it could take a little time.

Can you try to zoom out and in a little? The scatterplot has a minimum size I believe, maybe related to that?

[kvey]

I was able to get it working with that fragment shader change, though I don't understand why that had any effect.

Had a similar issue attempting to texture the points and I think it might have something to do with naming of the varyings? Though I can't confirm that.

Unrelated to this issue but incase you might think it's kind of cool, I was using this messing with rendering pokemon from pokemon-go haha: gfycat of visualization working though I ended up just building off of v2.2.4 due to this issue.

[gnavvy]

Hi @kvey, I just pushed a patch (2.4.7) with a (potential) fix, could you take a look and see if it fix your first issue?

[kvey]

@gnavvy patch doesn't seem to correct the issue, previously I attempted fixing this by just skipping that condition - so always projecting - which failed to correct it.

[ibgreen]

@vkey if you are still playing with the shader, I think the last line in the vertex shader is of interest

  vColor = mix(color, pickingColor, renderPickingBuffer);

Your screenshot seems to indicate that vColor for arcs (and perhaps scatterplot) is set to pickingColor instead of color.

As an example, try to change renderPickingBuffer to 0.0 in both arc and scatterplot and see if that helps. If so we have narrowed down the issue.

[ibgreen]

Fixed by luma.gl v2.5.3, which was just published.

@kvey A fresh npm install should fix the problem for you, it should pull in luma.gl v2.5.3