BUG: Drawing a triangle using Shape.Polygon doesn't seem to work brilliantly

[davesmith00000]

Points to mull over:

• We can't currently specify whether the Polygon is open or closed and there are no docs to say which it is.
• There's a weird line at the top, I wonder if that line has always been there and I just haven't noticed before (based on my limited test cases)?
• Is it worth adding a Shape.Triangle for more accurate drawing support?

[JPonte]

I have the same issue and it's not just triangles.
I'm drawing some prallelograms and it works perfectly on indigo 0.14.0 but that line started appearing when I updated to 0.15.0.

[davesmith00000]

Ah! That's a good clue though! Indigo 0.14.0 still used the old GLSL shaders, seems likely that I've just messed up the port of the polygon shader from GLSL to Scala. Thanks! 🙏

[davesmith00000]

Fixed by @JPonte 🚀
#654