0000024: client-side prediction of the viewpoint when transitioning from standing to crouching and vice versa

Notes
(0000052) unknownna (updater) 2010-09-13 06:24 edited on: 2010-09-13 08:04	While we're at it, it'd be very nice to have client-side prediction for action special 128: 'ThrustThingZ', as well. Jump-pads inside a room in D2DM2 and Arch-Vile attacks comes to mind. With a ping of 300ms+, you don't visually see any thrusting at all, just lots of disorienting earthquake-like shaking. Requested here:'http://www.skulltag.com/forum/viewtopic.php?f=33&t=14961 [^]' Edit: 'http://www.sendspace.com/file/mqkoa2 [^]' - A demo demonstrating how it currently is.

(0000058) Torr Samaho (administrator) 2010-09-14 19:56	Sounds like a reasonable request to me.

(0000088) Torr Samaho (administrator) 2010-09-19 12:51	I looked into this and found out that it's a bug and not a missing feature: Crouching is predicted (you begin to crouch immediately after pressing the crouch key regardless of your ping), but the client reduces the view height too quickly.

(0000089) Torr Samaho (administrator) 2010-09-19 13:11	I fixed some problems of the crouch prediction. Please test how well it works now:'http://www.dailydoomer.com/tsst/misc/SkullDev98dCrouchPredictionFixTest.7z [^]'

(0000093) unknownna (updater) 2010-09-19 14:38	Yes, it works now. The viewpoint transitions smoothly from standing height to crouching height and vice versa. But the movement, not the view, still seems to shake/lag when you crouch down or stand up from crouching while running compared to jumping at the same ping (300ms+). The movement while jumping is always smooth regardless of the ping. Tapping the crouch button with an emulated ping of 500ms will definitely have you notice it.

(0000099) Torr Samaho (administrator) 2010-09-19 19:24	Alright, took me most of the afternoon to figure out, but hopefully the crouch prediction works pretty well now. Please test:'http://www.dailydoomer.com/tsst/misc/SkullDev98d-2933windows.7z [^]'

(0000100) unknownna (updater) 2010-09-19 20:15 edited on: 2010-09-19 20:28	Very nice. Even with a ping of 600ms it now feels local. Good job on this one, Torr. But, as usual I noticed another thing, but it's not related to this since it happens in 98c as well. The higher your ping is, the more your viewpoint will "sink down" to the floor when you jump and land from a higher floor to a lower one. There has to be at least 16 map units+ difference between the two floors to get the effect.

(0000101) Torr Samaho (administrator) 2010-09-19 21:03 edited on: 2010-09-19 21:03	Yeah, now that you mention it, I can confirm this floor sinking. Since this is a completely separate issue, it deserves a new report. Can you do me a favor and create one?

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Issue History
Date Modified	Username	Field	Change
2010-09-13 03:10	unknownna	New Issue
2010-09-13 06:24	unknownna	Note Added: 0000052
2010-09-13 08:04	unknownna	Note Edited: 0000052	View Revisions
2010-09-13 18:10	unknownna	Description Updated	View Revisions
2010-09-14 19:56	Torr Samaho	Note Added: 0000058
2010-09-14 19:56	Torr Samaho	Status	new => acknowledged
2010-09-19 12:49	Torr Samaho	Status	acknowledged => confirmed
2010-09-19 12:49	Torr Samaho	Category	Suggestion => Bugs
2010-09-19 12:51	Torr Samaho	Note Added: 0000088
2010-09-19 13:11	Torr Samaho	Note Added: 0000089
2010-09-19 13:11	Torr Samaho	Assigned To	=> Torr Samaho
2010-09-19 13:11	Torr Samaho	Status	confirmed => feedback
2010-09-19 14:38	unknownna	Note Added: 0000093
2010-09-19 14:38	unknownna	Status	feedback => assigned
2010-09-19 19:24	Torr Samaho	Note Added: 0000099
2010-09-19 19:24	Torr Samaho	Status	assigned => feedback
2010-09-19 20:15	unknownna	Note Added: 0000100
2010-09-19 20:15	unknownna	Status	feedback => assigned
2010-09-19 20:28	unknownna	Note Edited: 0000100	View Revisions
2010-09-19 21:03	Torr Samaho	Note Added: 0000101
2010-09-19 21:03	Torr Samaho	Status	assigned => resolved
2010-09-19 21:03	Torr Samaho	Fixed in Version	=> 98d
2010-09-19 21:03	Torr Samaho	Resolution	open => fixed
2010-09-19 21:03	Torr Samaho	Note Edited: 0000101	View Revisions
2012-06-09 13:22	Torr Samaho	Category	General => Bug
2018-09-30 19:48	Blzut3	Status	resolved => closed

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