#openscad on 2022-07-02 — irc logs at libera.irclog.whitequark.org

00:00 ur5us has quit [*.net *.split]

00:00 foul_owl has quit [*.net *.split]

00:00 abff has quit [*.net *.split]

00:00 little_blossom has quit [*.net *.split]

00:00 LordOfBikes has quit [*.net *.split]

00:00 LordOfBikes has joined #openscad

00:00 LordOfBikes has quit [Changing host]

00:00 LordOfBikes has joined #openscad

00:02 little_blossom has joined #openscad

00:03 abff has joined #openscad

00:03 foul_owl has joined #openscad

00:05 aiyion has quit [Ping timeout: 268 seconds]

00:06 aiyion has joined #openscad

00:08 qeed has quit [Quit: qeed]

00:30 califax has quit [Remote host closed the connection]

00:30 aiyion has quit [Remote host closed the connection]

00:30 TheAssassin has quit [Remote host closed the connection]

00:30 califax has joined #openscad

00:30 TheAssassin has joined #openscad

00:30 aiyion has joined #openscad

00:33 milza has quit [Ping timeout: 246 seconds]

00:36 TheAssassin has quit [Remote host closed the connection]

00:36 califax has quit [Remote host closed the connection]

00:36 califax has joined #openscad

00:37 TheAssassin has joined #openscad

01:00 TheAssassin has quit [Remote host closed the connection]

01:00 TheAssassin has joined #openscad

01:11 TheAssassin has quit [Remote host closed the connection]

01:14 TheAssassin has joined #openscad

01:17 TheAssassin has quit [Remote host closed the connection]

01:17 TheAssassin has joined #openscad

01:32 GNUmoon has quit [Remote host closed the connection]

01:49 TheAssass1n has joined #openscad

01:51 TheAssassin has quit [Ping timeout: 268 seconds]

01:53 LordOfBikes has quit [Ping timeout: 246 seconds]

01:55 teepee has quit [Ping timeout: 268 seconds]

01:56 teepee has joined #openscad

02:05 LordOfBikes has joined #openscad

02:07 teepee has quit [Remote host closed the connection]

02:09 teepee has joined #openscad

02:20 teepee_ has joined #openscad

02:22 TheAssassin has joined #openscad

02:22 teepee has quit [Remote host closed the connection]

02:22 teepee_ is now known as teepee

02:23 TheAssass1n has quit [Remote host closed the connection]

02:31 qeed has joined #openscad

02:37 teepee has quit [Remote host closed the connection]

02:39 teepee has joined #openscad

03:19 J1A8436 has joined #openscad

03:22 J1A84 has quit [Ping timeout: 252 seconds]

03:38 GNUmoon has joined #openscad

04:15 GNUmoon has quit [Remote host closed the connection]

04:15 GNUmoon has joined #openscad

05:23 peeps[zen] has quit [Ping timeout: 276 seconds]

05:28 peepsalot has joined #openscad

06:05 aiyion has quit [Ping timeout: 268 seconds]

06:06 aiyion has joined #openscad

06:13 aiyion has quit [Remote host closed the connection]

06:13 aiyion has joined #openscad

06:44 <J1A8436> why are 2D polygons not preview rendered with convexity=2 ?

06:45 <J1A8436> or what does the convexity variable in polygons ?

07:04 aiyion has quit [Remote host closed the connection]

07:05 aiyion has joined #openscad

07:07 aiyion has quit [Remote host closed the connection]

07:07 aiyion has joined #openscad

07:48 lastrodamo has joined #openscad

08:01 J1A8436 has quit [Quit: Client closed]

08:05 J1A84 has joined #openscad

08:27 KimK has quit [Ping timeout: 268 seconds]

08:39 KimK has joined #openscad

08:53 foul_owl has quit [Ping timeout: 240 seconds]

09:07 foul_owl has joined #openscad

09:08 Colere has quit [Ping timeout: 240 seconds]

09:09 Colere has joined #openscad

09:11 Furor has joined #openscad

09:13 Colere has quit [Ping timeout: 256 seconds]

09:34 Furor is now known as Colere

09:41 extor has quit [Ping timeout: 255 seconds]

09:56 peepsalot has quit [Read error: Connection reset by peer]

09:57 peepsalot has joined #openscad

11:19 extor has joined #openscad

11:30 GNUmoon has quit [Ping timeout: 268 seconds]

11:32 GNUmoon has joined #openscad

15:10 paddymahoney has joined #openscad

15:17 <ali1234> convexity shouldn't do anything at all for 2d objects - they can't ever be convex by the openscad definition

15:18 <J1A84> ali1234 you know they are show as 3D objects in preview - and preview is the only place where the convexity variable does anything

15:19 <ali1234> convexity is the number of times a camera ray can enter and exit an object

15:20 <ali1234> the only way that can happen more than once for a 2d object is if the camera is looking at it edge on, in which can it would not show up at all anyway

15:21 <J1A84> https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/2D_Primitives

15:21 <J1A84> "Although they are infinitely thin, they are rendered with a 1 thickness."

15:21 <ali1234> true i suppose

15:23 <ali1234> note that convexity = 2 is the minimum possible convexity

15:23 <ali1234> ie a sphere has convexity 2

15:26 <J1A84> well default is 1 for most .. except rotate_extrude uses 2

15:27 <J1A84> and the wiki shows examples with different convexity in polygons - but this has no effect in preview

15:28 <ali1234> well it is odd for it to be 1... it can only ever be an even number for a closed object

15:29 <J1A84> "The convexity parameter specifies the maximum number of front sides (back sides) a ray intersecting the object might penetrate."

15:29 <teepee> nope, it's 1 for convex objects

15:29 <ali1234> the wiki is wrong then

15:30 <J1A84> intresting is that the example "has convexity of 4" but it is just 2 Ü

15:30 <teepee> it was, should be fixed by now

15:30 <ali1234> someone broke it again :(

15:30 <teepee> :(

15:33 <J1A84> have changed the wiki

15:36 <J1A84> ali1234 where did you read that ~"note a sphere has convexity=2 is the minimum... " can't find this in the wiki

15:36 <ali1234> i was basing that off the thing you've fixed

15:36 teepee has quit [Ping timeout: 268 seconds]

15:37 teepee has joined #openscad

15:37 <J1A84> ah ok .. so still wondering why the preview display of 2D ignores that variable

15:38 <J1A84> (or should i upgrade my version? )

15:38 <ali1234> if you've got an example i can try it on nightly

15:38 <ali1234> if it is reproducible i would report it

15:39 <J1A84> any polygon that is viewed so the ray passes two times the outside to inside

15:39 <J1A84> probably any with a hole

15:41 <ali1234> i can't reproduce

15:41 <J1A84> hmm just trying myself .. but i have seen this today morning

15:41 <ali1234> although it does look like convexity might be ignored

15:42 <ali1234> because even with convexity=1 i can't reproduce typical wrong ordering

15:42 <J1A84> ah maybe only when doing differences

15:44 <J1A84> https://pasteboard.co/XMn5wKme51jK.png

15:49 <J1A84> try this https://bpa.st/QDVQ

15:50 <ali1234> looks fine for me

15:50 <ali1234> https://imgur.com/7PDVETA.png

15:51 <ali1234> 0+git.6aae79634

15:51 <ali1234> (nightly snap)

15:56 <J1A84> here another https://bpa.st/GCLA

15:56 <J1A84> ah .. ok .. seems i need to upgrade Ü - thanks for testing

15:56 <ali1234> that one shows an error for me

15:56 <J1A84> noooo

15:56 <J1A84> :(

15:57 <ali1234> https://imgur.com/qSehxyK.png

15:57 <J1A84> so it is related to polygon not to 2D shapes

15:58 <J1A84> funny the parts are white ... in yours https://pasteboard.co/ejFhc4WWq5RQ.png

15:58 <J1A84> so something was changed already

15:59 <ali1234> yeah the errors are less severe for me

16:00 <J1A84> maybe they put default convexity 2 in . and this has 4

16:00 <ali1234> quite possible

16:03 <J1A84> well small successes are still wins .. or so

16:03 <J1A84> at least some improvement

16:27 teepee has quit [Remote host closed the connection]

16:41 <gbruno> [github] t-paul edited issue #4291 (Provide customizer support for installed fonts) https://github.com/openscad/openscad/issues/4291

16:42 teepee has joined #openscad

17:12 TheAssassin has quit [Remote host closed the connection]

17:12 TheAssassin has joined #openscad

17:34 snaked has quit [Ping timeout: 246 seconds]

18:50 Guest58 has joined #openscad

18:51 Guest58 has quit [Client Quit]

19:03 snaked has joined #openscad

19:09 snaked has quit [Ping timeout: 246 seconds]

19:29 snaked has joined #openscad

19:58 snaked has quit [Ping timeout: 256 seconds]

20:20 teepee has quit [Ping timeout: 268 seconds]

20:22 teepee has joined #openscad

21:40 snaked has joined #openscad

22:25 lastrodamo has quit [Quit: Leaving]

22:48 teepee has quit [Remote host closed the connection]

22:48 aiyion has quit [Remote host closed the connection]

22:48 califax has quit [Write error: Connection reset by peer]

22:48 califax has joined #openscad

22:49 aiyion has joined #openscad

22:50 aiyion has quit [Remote host closed the connection]

22:50 teepee has joined #openscad

22:50 aiyion has joined #openscad

23:20 snaked has quit [Remote host closed the connection]

23:20 snaked has joined #openscad