0004946: Candle Flame Particle Behind Wall Shows in a Mirror

ID	Project	Category	View Status	Date Submitted	Last Update

0004946	The Dark Mod	Graphics	public	03.01.2019 20:58	26.12.2020 08:41

Reporter	Spooks	Assigned To	duzenko
Priority	normal	Severity	normal	Reproducibility	always
Status	resolved	Resolution	fixed
OS	Windows	OS Version	7
Product Version	TDM 2.06
Target Version	TDM 2.09	Fixed in Version	TDM 2.08

Summary	0004946: Candle Flame Particle Behind Wall Shows in a Mirror
Description	In Night of Reluctant Benefaction, there is a mirror in one room and a stock candle in the room behind it. Under certain viewing angles, you can see the candle flame particle show up in the mirror but not the candle (or light emitted) itself. The two rooms have proper visportalling, so the visleafs should be sealed from each other. Extinguishing the candle in the other room makes the particle go away from the mirror. Relighting it brings it back.
Steps To Reproduce	http://forums.thedarkmod.com/topic/19774-beta-testing-207/page-7#entry432487 This post contains screenshots. In anorb2.map, the getviewpos is "635.64 535.45 300.25 2.4 -84.2 0.0"
Additional Information	There is an additional candle in the room with the mirror. It does not affect the reflection from where it is, but if you bring it to the other room and place it next to the offending candle, you may see two candle flames in the mirror depending on your position.
Tags	No tags attached.

duzenko 06.01.2019 09:18 developer ~0011249 Last edited: 06.01.2019 09:19	AFAIK The particle gets to the screen because the mirror clip is a part of the depth test and the particle does not write to depth buffer. I would propose to pass the mirror clip plane to soft_particle.vfp but since the ARB2 shaders are scheduled to drop in 2.08 it has to wait until then. I don't think anything has to be done on the portal code or the map.

stgatilov 12.01.2019 16:33 administrator ~0011333	Soft particles is new feature? Is it possible to disable it? If yes, then how? If they are disabled, then the problem disappears?

nbohr1more 12.01.2019 18:39 developer ~0011337	R_useSoftParticles was introduced by SteveL in 2.03

nbohr1more 08.05.2020 02:59 developer ~0012479	Most of the issues with candles and mirrors are resolved in 2.08 but the core issue here can still be reproduced.

duzenko 09.05.2020 12:06 developer ~0012484	At revision: 8721 Test cvar: r_useClipPlaneCulling

Date Modified	Username	Field	Change
03.01.2019 20:58	Spooks	New Issue
06.01.2019 09:18	duzenko	Note Added: 0011249
06.01.2019 09:18	duzenko	Status	new => acknowledged
06.01.2019 09:18	duzenko	Target Version	=> TDM 2.08
06.01.2019 09:19	duzenko	Note Edited: 0011249
06.01.2019 09:19	duzenko	Note Edited: 0011249
12.01.2019 16:33	stgatilov	Note Added: 0011333
12.01.2019 18:39	nbohr1more	Note Added: 0011337
08.05.2020 02:59	nbohr1more	Note Added: 0012479
09.05.2020 12:06	duzenko	Assigned To	=> duzenko
09.05.2020 12:06	duzenko	Status	acknowledged => resolved
09.05.2020 12:06	duzenko	Resolution	open => fixed
09.05.2020 12:06	duzenko	Fixed in Version	=> TDM 2.08
09.05.2020 12:06	duzenko	Note Added: 0012484
20.05.2020 09:50	stgatilov	Target Version	TDM 2.08 => TDM 2.09
26.12.2020 08:41	stgatilov	Relationship added	related to 0005327