Wire line-width in draw manager ignores UI scale. #51206
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All lines should be scaled by UI-scale, where 2x scale should give a 2-pixel width line.
Examples include:
Changed status to: 'Open'
Added subscriber: @ideasman42
Added subscriber: @dfelinto
Note about glLineWidth from official glspec33.core.pdf:
"Wide lines - LineWidth values greater than 1.0 will generate an INVALID_VALUE error."
I haven't ran into issues with this, even in a system with Mesa. But we shouldn't rely on that.
Added subscriber: @MikeErwin
I've gotten mixed results with wide lines on core profile.
On Intel/Windows they work fine.
On Mac (Intel & NV) lines are drawn 1px and an error is logged.
Haven't checked this on other OS/GPU combos but we could survey them all to get a better idea of what is supported.
Added subscriber: @fclem
Edit mode edge drawing uses a different technique though. It can be updated to respect UI scale. Similar for round points with outlines.
Added subscriber: @antoniov
@MikeErwin For grease pencil I had to create a geometry shader because widths greater than 1px are not supported in all opengl implementation, only 1px is mandatory, so with the new geom shader now I can draw thick lines with n pixels width.
Added subscriber: @brecht
Changed status from 'Open' to: 'Archived'
I'm not sure if this was fixed, but edges appear to be drawn with a good size on high DPI screens now, making them thicker would not look good.