ID:2657357
 
Resolved
Alpha premultiplication was done incorrectly for some situations like drawing maptext or anything with KEEP_TOGETHER, which especially caused problems for fade effects.
BYOND Version:514.1548
Operating System:Windows 10 Enterprise 64-bit
Web Browser:Chrome 88.0.4324.182
Applies to:Dream Seeker
Status: Resolved (514.1549)

This issue has been resolved.
Descriptive Problem Summary:
When you animate alpha parameter image becames brighter than it should be. Effect multiplies when you add maptext

Numbered Steps to Reproduce Problem:
1)Download test case https://drive.google.com/file/d/ 1bsBxHnTEtNeSuD-DX3r140SrXRdgQ6Wv/view?usp=sharing
2)Play with verbs

Expected Results:
Normal alpha rendering

Actual Results:
Simulation of discord light theme

Does the problem occur:
Every time? Or how often?
Every time
In other games?
Yes
In other user accounts?
Yes
On other computers?
Yes

When does the problem NOT occur?
When you don't use alpha parameter

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.)
514.1547

+1
Lummox JR resolved issue with message:
Alpha premultiplication was done incorrectly for some situations like drawing maptext or anything with KEEP_TOGETHER, which especially caused problems for fade effects.