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Converting .bm files...
http://forums.residualvm.org/viewtopic.php?f=2&t=681
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Author:  Mr. Calavera [ Mon Feb 02, 2015 3:46 pm ]
Post subject:  Converting .bm files...

Hello, I'm studying some ways to make a remake of the backgrounds of Grim Fandango, as current are in low resolution. But I have a problem with the extent of background files (.bm in this case), can converts it to .bm .png using the Grim Editor, but I can not do the reverse, does anyone have any program or something that I can use to convert .png to .bm? Thanks!

Author:  JohnnyWalker2001 [ Tue Feb 03, 2015 1:26 am ]
Post subject:  Re: Converting .bm files...

Good luck with that! I will take a look into it myself when I can.

Author:  Botje [ Tue Feb 03, 2015 10:49 am ]
Post subject:  Re: Converting .bm files...

You can deduct the file format from https://github.com/residualvm/residualv ... ap.cpp#L89
Note that some .bm files contain an offset used for rendering. Not sure how this will interact with higher resolutions.

Author:  somaen [ Thu Feb 05, 2015 12:27 am ]
Post subject:  Re: Converting .bm files...

Also, note that quite a few scenes have videos that play on top of the backgrounds (i.e. the tube in Manny's Office). If you change any pixels around those, then the video will become very very visible all of a sudden (while it was originally intended to blend seamlessly).

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