Applying a filter to a render_source object that has a render_target with multiple turfs in its vis_contents causes the turfs to no longer appear.
Numbered Steps to Reproduce Problem:
https://drive.google.com/file/d/ 1vvo0m7CN9g9UCHZkRw-SRyNgOcdGJJWZ/view?usp=sharing
1. Click bugged() verb.
Code Snippet (if applicable) to Reproduce Problem:
mob/verb/bugged()
var/obj/relay = new(null)
relay.render_target = "*test"
relay.appearance_flags = KEEP_TOGETHER
relay.screen_loc = "1,1"
relay.vis_contents += block(locate(1,1,2), locate(1,2,2))
usr.client.screen += relay
var/obj/slate = new(usr.loc)
slate.render_source = "*test"
slate.filters += filter(type="blur", size = 4)
mob/verb/notbugged()
var/obj/relay = new(null)
relay.render_target = "*test2"
relay.appearance_flags = KEEP_TOGETHER
relay.screen_loc = "1,1"
relay.vis_contents += block(locate(1,1,2), locate(1,1,2))
usr.client.screen += relay
var/obj/slate = new(usr.loc)
slate.render_source = "*test2"
slate.filters += filter(type="blur", size = 4)
mob/verb/notbugged2()
var/obj/relay = new(usr.loc)
relay.vis_contents += block(locate(1,1,2), locate(1,2,2))
relay.appearance_flags = KEEP_TOGETHER
relay.filters += filter(type="blur", size = 4)
mob/verb/notbugged3()
var/obj/relay = new(null)
relay.render_target = "*test"
relay.appearance_flags = KEEP_TOGETHER
relay.screen_loc = "1,1"
relay.vis_contents += block(locate(1,1,2), locate(1,2,2))
usr.client.screen += relay
relay.filters += filter(type="blur", size = 4)
var/obj/slate = new(usr.loc)
slate.render_source = "*test"
Expected Results:
A 1x2 of red, blurred turfs appears atop of you when using bugged() verb.
Actual Results:
No turfs appear at all.
Does the problem occur:
Every time? Or how often? Only when multiple turfs are in vis_contents. And when you apply the filter to the render_source directly.
In other games? n/a
In other user accounts? yes
On other computers? yes
When does the problem NOT occur?
If you only have one turf in the render_target (notbugged verb)
If you put the render_target's obj on the map instead (notbugged2 verb)
If you directly apply the filter to the render_target.(notbugged3 verb)
Did the problem NOT occur in any earlier versions? If so, what was the last version that worked? (Visit http://www.byond.com/download/build to download old versions for testing.) no
Workarounds:
see: when does the problem not occur section
