0002100: gl_vid_multisample doesn't work in Zandronum 2.0-alpha-150118-1152 or Zandronum 2.0-alpha-141117-2018

Notes
(0011692) Torr Samaho (administrator) 2015-02-15 20:48	I can't get gl_vid_multisample to work in any Zandronum version on my machine. Can you post your ini file where you have it enabled in 1.3? And please provide a screenshot with and without multisampling.

(0011715) Doom_user (reporter) 2015-02-18 02:30	gl_vid_multisample can be set to 0, 2, 4, or 6 0 is none, 2 is low, 4 is medium, and 6 is high I use 6

(0011717) Edward-san (developer) 2015-02-18 12:29 edited on: 2015-02-18 13:25	Strange, I can't find any difference between 1.3 and 2.0 , except for the sky position. Now that I know the values, I'll test them on my machine. [edit] If I set the multisample value greater than '4', zandronum crashes both in 1.3 and 2.0 (and happens also in gzdoom) in my machine. I investigated it and found out that SDL can't create the window with such value for the multisample. I made it print the reason for this: Couldn't find matching GLX visual Oh well...

(0011718) Edward-san (developer) 2015-02-18 19:58	@Doom_user , can you reproduce this with this build of gzdoom?

(0011719) Doom_user (reporter) 2015-02-18 23:46	I can't test gzdoom-g2.1.pre-655-gc6cb849.7z because the computer I'm using at the moment doesn't support OpenGL 3.0 I've tested gl_vid_multisample in all of the following ports It works in gzdoom-bin-1-8-10.zip gzscoredoom-3.0r4J2d(BonusPack).rar st-v097d5_windows.zip st-v098d_windows.zip SkullDev98e-120415-2135windows.zip zandronum1.3-win32-base.zip ZandroDev2.0-131223-1820windows.zip ZandroDev2.0-140104-1248windows.zip ZandroDev2.0-140112-1124windows.zip It doesn't work in ZandroDev2.0-141117-2018windows.zip ZandroDev2.0-150118-1152windows.zip

(0011720) Edward-san (developer) 2015-02-18 23:47	Does it work for you on GZDoom r900?

(0011721) Doom_user (reporter) 2015-02-18 23:53	I just tested gzdoom-r323windows.zip gzdoom-r900windows.zip gl_vid_multisample works in both of them

(0011740) Torr Samaho (administrator) 2015-02-22 21:01	Even with your ini gl_vid_multisample doesn't do anything for me in 1.3. Which GPU do you have?

(0011744) Doom_user (reporter) 2015-02-23 04:07	The computer I'm using at the moment is a 2006 Gateway notebook and it has "ATI Radeon Xpress Series" integrated graphics.

(0011859) Doom_user (reporter) 2015-03-18 17:47 edited on: 2015-03-18 18:01	I just wanted to add some additional information about this. The values that you can use for gl_vid_multisample seem to be based on what levels of multi sample anti aliasing your graphics card supports. My computer's integrated graphics support 2x, 4x, and 6x MSAA, which is probably why 2, 4, and 6 are the values that work for me. I'm guessing that Edward-san's graphics card doesn't support 6x MSAA, and that's why Zandronum and GZDoom crashed when he tried to use 6. Likewise, I'd imagine gl_vid_multisample could be set to 8 if one was using a graphics card that supports 8x MSAA. As a crude workaround, I can actually get multisampling in ZandroDev2.0-141117-2018 and ZandroDev2.0-150118-1152 if I go in to my graphics driver settings and set it disregard application settings and to force MSAA always on.

(0013604) Doom_user (reporter) 2015-10-05 08:37	This issue is fixed in ZandroDev3.0-151004-2012windows The gl_vid_multisample setting works perfectly again.

(0013605) Dusk (developer) 2015-10-05 09:26	Most likely resolved by the GZDoom upgrades, then.

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Issue History
Date Modified	Username	Field	Change
2015-02-13 02:36	Doom_user	New Issue
2015-02-15 20:48	Torr Samaho	Note Added: 0011692
2015-02-15 21:08	Dusk	Target Version	=> 2.0
2015-02-18 01:28	Doom_user	File Added: zandronum-DoomUser.ini
2015-02-18 01:35	Doom_user	File Added: Zandronum13WorkingMultisampling.png
2015-02-18 01:35	Doom_user	File Added: Zandronum20BrokenMultisampling.png
2015-02-18 02:30	Doom_user	Note Added: 0011715
2015-02-18 02:50	Doom_user	File Added: Zandronum13WorkingMultisampling2.png
2015-02-18 02:50	Doom_user	File Added: Zandronum20BrokenMultisampling2.png
2015-02-18 12:29	Edward-san	Note Added: 0011717
2015-02-18 13:25	Edward-san	Note Edited: 0011717	View Revisions
2015-02-18 19:58	Edward-san	Note Added: 0011718
2015-02-18 23:46	Doom_user	Note Added: 0011719
2015-02-18 23:47	Edward-san	Note Added: 0011720
2015-02-18 23:53	Doom_user	Note Added: 0011721
2015-02-22 21:01	Torr Samaho	Note Added: 0011740
2015-02-22 21:01	Torr Samaho	Status	new => feedback
2015-02-23 04:07	Doom_user	Note Added: 0011744
2015-02-23 04:07	Doom_user	Status	feedback => new
2015-03-09 04:50	Dusk	Target Version	2.0 =>
2015-03-18 17:47	Doom_user	Note Added: 0011859
2015-03-18 17:55	Doom_user	Note Edited: 0011859	View Revisions
2015-03-18 17:55	Doom_user	Note Edited: 0011859	View Revisions
2015-03-18 17:58	Doom_user	Note Edited: 0011859	View Revisions
2015-03-18 18:01	Doom_user	Note Edited: 0011859	View Revisions
2015-10-05 08:37	Doom_user	Note Added: 0013604
2015-10-05 09:26	Dusk	Status	new => resolved
2015-10-05 09:26	Dusk	Resolution	open => fixed
2015-10-05 09:26	Dusk	Assigned To	=> Dusk
2015-10-05 09:26	Dusk	Note Added: 0013605
2015-10-05 09:26	Dusk	Assigned To	Dusk => Torr Samaho
2015-10-05 09:27	Dusk	Relationship added	child of 0002172
2015-10-05 09:28	Dusk	Fixed in Version	=> 3.0
2015-10-05 09:28	Dusk	Target Version	=> 3.0
2018-09-30 22:19	Blzut3	Status	resolved => closed