0004144: Investigate split portals - The Dark Mod Bugtracker

ID	Project	Category	View Status	Date Submitted	Last Update

0004144	The Dark Mod	Design/Coding	public	30.04.2015 17:11	05.08.2015 18:37

Reporter	SteveL	Assigned To	SteveL
Priority	normal	Severity	normal	Reproducibility	N/A
Status	closed	Resolution	no change required
Product Version	TDM 2.03

Summary	0004144: Investigate split portals
Description	Split visportals work independently (when they work at all) and could be useful for outdoor scenes. http://forums.thedarkmod.com/topic/9082-newbie-darkradiant-questions/page-234#entry370492 Split portals where one is closed and the other isn't don't show as closed (red) using r_showPortals, which colours portals green if anything at all can be seen in the visleaf beyond them. It doesn't distinguish between portals that the player can genuinely see through and those that are blocking part of a visleaf. It's perfectly possible for a portal to be hide part of a visleaf from the renderer. One thing to consider in this issue is whether to tweak r_showPortals so that it uses 3 colours instead. Example in the post linked above. Main thing to investigate: Split portals often don't work unless you tweak them so they are no longer co-planar. But that requires angled visportals, which could cause glitches of their own by carving up map geometry oddly.
Tags	No tags attached.

SteveL 05.08.2015 18:35 reporter ~0007708	This was a red herring. Split portals don't offer benefits. If half a portal is hidden, any models behind that part of the portal (and that don't stick out into the visible area) aren't drawn anyway.

SteveL 05.08.2015 18:37 reporter ~0007709	We'll keep the 3-colour portals from 0004162. The 3 colours are still valid and useful for diagnostics. They let you distinguish which portals are opening a visleaf and which are merely facing onto an open one.

Date Modified	Username	Field	Change
30.04.2015 17:11	SteveL	New Issue
30.04.2015 17:11	SteveL	Status	new => assigned
30.04.2015 17:11	SteveL	Assigned To	=> SteveL
07.06.2015 20:15	SteveL	Relationship added	related to 0004162
05.08.2015 18:35	SteveL	Note Added: 0007708
05.08.2015 18:35	SteveL	Status	assigned => closed
05.08.2015 18:35	SteveL	Resolution	open => no change required
05.08.2015 18:37	SteveL	Note Added: 0007709