teepee changed the topic of #openscad to: OpenSCAD - The Programmers Solid 3D CAD Modeller | This channel is logged! | Website: http://www.openscad.org/ | FAQ: https://goo.gl/pcT7y3 | Request features / report bugs: https://goo.gl/lj0JRI | Tutorial: https://bit.ly/37P6z0B | Books: https://bit.ly/3xlLcQq | FOSDEM 2020: https://bit.ly/35xZGy6 | Logs: https://bit.ly/32MfbH5
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<stealth_> does polygon() extrude by default?
<stealth_> o, looks like i have to use it like so `polygon(points).linear_extrude(.25)`
<InPhase> It does not extrude by default, but preview will pretend a width of 1 unit.
<stealth_> o right, the Render does not show as extruded (it was confusing me)
<InPhase> For example, this unconvincing pretender of a polygon during preview. :) polygon(0.1*[for (a=[0:360])[cos(a),sin(a)]]);
<stealth_> well its good to know..
<stealth_> none the less the polygon() is pretty cool ;)
<InPhase> It is. Polyhedron can be a lot of work to make work right. Polygon though can do amazing things with very compact code.
<InPhase> I attempted to emphasize this on the Day 10 entry on the last calendar: https://openscad.org/advent-calendar-2024/
<InPhase> (3 over, 4 down)
<stealth_> o it can event do curved surface? will have to figure that one out.
<stealth_> currently i just doing fixed angle
<InPhase> Yeah. That entry is a compact demo of that. It's not too hard.
<stealth_> i am just learning openscad as my project needs me to do something.
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<stealth_> i am glad i am using openscad though, other software would have killed my system.
<stealth_> even though i have a brand new system!
<stealth_> once i render it ok to move the object around by the preview is slower
<stealth_> but*
<InPhase> Yes. Preview is doing a live rendering-like calculation, which can scale poorly.
<stealth_> also having openscad open does mess with mpv player in fullscreen! not sure what thats about.
<InPhase> mpv is in opengl display mode?
<stealth_> not sure, could be!
<stealth_> looking at config there is no mention of opengl
<InPhase> If you're doing heavy preview while that happens, you might just be clobbering your video card a bit hard.
<stealth_> it happens if i leave openscad open for a while
<stealth_> if i close it and reopen i can do both preview/render + mpv and no issue
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<stealth_> maybe if i leave render on for a while! i dono, its odd when it happens, but it does happen. mpv runs into blue screen like effect
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<kintel> I wonder if we should kill real-time preview of 2D objects and just evaluate and render them the same way in preview and render mode. I'm sure there are some corner cases for which this will be slower, but not sure if that's a good enough argument for keeping status quo
<stealth_> maybe set render as default and have preview as optional for cases that might be useful?
<stealth_> i do like preview cause it shows the object colors more correct vs rendering
<stealth_> or cases when you have a hidden mask and you want to know where it is, stuff like that won't show up in render.
<stealth_> i totally read that wrong! lol maybe i was wondering why preview exist when render is faster now.
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<gbruno> [github] kintel pushed 4 additions 3 modifications (Added failing test case for #5866) https://github.com/openscad/openscad/commit/a6a4aa00fa79c0f8860cf074dcb99f99148b6db0
<gbruno> [github] kintel opened pull request #5875 (Added failing test case for #5866) https://github.com/openscad/openscad/pull/5875
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<gbruno> [github] kintel closed pull request #5875 (Added failing test case for #5866) https://github.com/openscad/openscad/pull/5875
<gbruno> [github] kintel pushed 4 additions 3 modifications (Added failing test case for #5866 (#5875)) https://github.com/openscad/openscad/commit/d30691a76cf50e084b52287cd7df239ff0a9d0fa
<kintel> stealth_ Render is still slow for some cases, like minkowski
<gbruno> [github] kintel edited issue #4825 (Make manifold integration release ready) https://github.com/openscad/openscad/issues/4825
<gbruno> [github] kintel edited issue #4825 (Make manifold integration release ready) https://github.com/openscad/openscad/issues/4825
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<stealth_> i see
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<gbruno> [github] gsohler synchronize pull request #5829 (Import backup files - Improve the User experience) https://github.com/openscad/openscad/pull/5829
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<gbruno> [github] kintel converted_to_draft pull request #5833 (Make Manifold the default backend) https://github.com/openscad/openscad/pull/5833
<gbruno> [github] kintel edited pull request #5833 (Make Manifold the default backend) https://github.com/openscad/openscad/pull/5833
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<stealth_> Bambu Lab H2D looks nice, but the price though! $900 just to upgrade from 10 to 40 watt laser?
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