Hello Roman, Le 10/09/2017 à 22:34, Roman Haefeli a écrit : > On Sam, 2017-09-09 at 18:50 +0200, cyrille henry wrote: >> >> Le 09/09/2017 à 12:44, Roman Haefeli a écrit : >>> >>> On Sam, 2017-09-09 at 12:37 +0200, cyrille henry wrote: >>>> >>>> hello, >>>> yes, the ortho was buggy and fixed. But the old behaviours is >>>> still >>>> possible if you send a "compat" message. >>>> See help file. >>> I see, thanks. I should have checked the help file in the first >>> place. >>> >>> But how can someone use the full window area with the new default >>> mode? >> changing the windows perspective!!! >> (using the perspec message to gemwin, see help file) > > Sorry, I don't understand. Maybe I simply don't understand which > question this answers.
I guess Cyrille want to say that you can manage the clipping of ortho with the message 'perspec'. 'perspec' seems to work for the frustum (with perspective) and ortho (orthographic mode). I can't test here because, like you in your video, [ortho] not work properly on my system with a recent Gem (ver: 0.93.git 10759c2). Using [ortho] on a square in the center of my gemwin, move this square elsewhere. I can also confirm that message 'compat' do nothing here. However, you can simulate [ortho] if you need it now with : [GEMglMatrixMode GL_PROJECTION] | [GEMglLoadIdentity] | [GEMglOrtho -1 1 -1 1 1 20] With these objects, you reset the projection and use orthographic projection for your geo. -1 1 -1 1 1 20 are the clipping volume in ortho mode. Don't forget to use just after your geo (if you want your perspective come back) : [GEMglMatrixMode GL_PROJECTION] | [GEMglLoadIdentity] | [GEMglFrustum -1 1 -1 1 1 20] Hope it helps. ++ Jack > > >>> Why is there a limit? >> what limit? > > What I am experiencing when using [ortho] is that only the lower left > 500x500 pixels of the gemwin can be used for rendering. Also, the > center seems to be in the middle of this 500x500px area. This is with > current master (cc0d464a) on Ubuntu 16.04 with a Intel graphics. Please > check this screen recording: > > http://netpd.org/~roman/ramsch/ortho_limit.mkv > > >> "ortho" change the way objawayect appear smaller far away. > > This I understand. All parallel lines appear parallel in orthographic > projection. > >> It also use to change the perspective and was in conflict with the >> gemwin "perspec" message. > > This I don't understand. > >> the conflict have been removed. > > I'm a bit confused whether I hit a bug or if there is some big > misunderstanding on my part. Can you check the above video and tell me > if you get the same? > > BTW: the 'compat' method does not work for me. No matter whether I send > 'compat 0' or 'compat 1', the rendered output looks exactly the same. > > Roman > > > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > https://lists.puredata.info/listinfo/pd-list >
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