Windows 8 Alpha bug?

Monkey Forums/Monkey Bug Reports/Windows 8 Alpha bug?

Leginus(Posted 2013) [#1]
Sorry to double post, but my post seems to be missed in the Windows 8 forum so I thought that I might have put it in the wrong place. Mods please feel free to remove the windows 8 post if its incorrect and I apologise. Here was the post

I now have to allow my game on windows 8 so I installed windows 8 enterprise evaluation edition today x64.

My part written game works fine on windows 7 and fine on windows 8 HTML5, but has some kind of alpha blending issue on windows 8 game.

I have attached a screenshot which shows the problem. Any alpha png seems to be coming out dark.




I have a link to
a similar issue regarding windows 8 which sounds something similar, but I thought it would be best to ask if anyone else is experiencing this first.

On the screenshots it is a simple png showing a jet with jet trails with alpha channel and the clouds are from particles running from timelinefx.

I have tested the code without timelinefx and it is still drawing very dark, and I have tested the clouds in the timelinefx editor on windows 8 and that is absolutely fine.

Is anyone else experiencing this? Is this a bug?

I forgot to say this is with monkey version 74a and version 76d


marksibly(Posted 2013) [#2]
Oops, looks like winrt_win8 (not winphone8) is premultiplying alpha twice.

Fixed in next release, or grab fix here:

https://github.com/blitz-research/monkey/blob/develop/targets/winrt_win8/modules/native/monkeytarget.cpp

Some nice clouds here too:

http://community.hitfilm.com/index.php?/topic/2456-freebies-clouds-smoke-fire-and-explosions/


Leginus(Posted 2013) [#3]
Wow thanks Mark. That was fast and thanks for the clouds link too.
Very much appreciated!