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Blending fade doesn't work on sprites #1905

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GValiente opened this issue Oct 5, 2020 · 3 comments
Closed

Blending fade doesn't work on sprites #1905

GValiente opened this issue Oct 5, 2020 · 3 comments

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@GValiente
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blending.zip

mGBA 0.8.3 doesn't fade the dinosaur in the middle (rendered with a sprite):
mgba

Expected output:
vba
@endrift
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endrift commented Oct 5, 2020

There are a LOT of corner cases when it comes to blending. Please give me more info about what you're doing and not just the ROM. Further, they may be broken in OpenGL mode, and also may have been fixed since 0.8.3 (I've made a bunch of changes...), so please test with a newer version and make sure which renderer you're using.

@GValiente
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(I think) I'm using the software renderer:
mgba_2
mgba_1

It doesn't work with the latest development version posted on mgba.io.

If I can give you more info please feel free to ask.

@endrift
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endrift commented Oct 5, 2020

This seems to be related to the use of target 2 on the background layers while it's not actually doing anything. That's a bug on my end.

endrift added a commit that referenced this issue Oct 5, 2020
@endrift
GBA Video: Fix deferred blending when OBJWIN matches window (fixes #1905
a7ab586 
)
@endrift endrift closed this as completed in 3f10823 Oct 5, 2020
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@endrift @GValiente