Opened 5 months ago

Last modified 5 months ago

#10686 new defect

WME: Sprite background is not fully transparent if AlphaColor is set

Reported by: lolbot-iichan Owned by:
Priority: normal Component: Engine: Wintermute
Keywords: Cc: somaen, lolbot-iichan, tobiatesan
Game: Wintermute

Description

Discovered this issue at FoxTail game, that is using dinamic lighting on PNG sprites with transparent background.

I have exctacted sprite lighting source code and made a simple test game to demonstrate this issue without running FoxTail which is not fully supported by ScummVM yet: https://github.com/tobiatesan/wme_testsuite/tree/master/light_test/packages

Screenshots are attached. Resulting colot difference is not big (like #FFDED5 vs #FFDAD5), however you could see and feel this rectangle moving around character sprite both in test game and FoxTail.

Tested on latest ScummVM from dev branch and ScummVM 2.1.0git3428-gc518691d7c (Aug 12 2018 19:04:49).

Attachments (2)

light_test_scummvm.png (24.9 KB) - added by lolbot-iichan 5 months ago.
light_test_wintermute.png (23.9 KB) - added by lolbot-iichan 5 months ago.

Download all attachments as: .zip

Change History (3)

Changed 5 months ago by lolbot-iichan

Attachment: light_test_scummvm.png added

Changed 5 months ago by lolbot-iichan

Attachment: light_test_wintermute.png added

comment:1 Changed 5 months ago by lolbot-iichan

Game: Wintermute
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