Raydium 3D Game Engine

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PostPosted: Tue Oct 21, 2008 8:49 am 
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If you're a Raydium SVN user, you may have noticed that a few things are upside down since a few hours ... The reason is simple: Raydium now handle correctly TGA file format, including RLE compression and "flipping bits" (revision 799, thanks to ouille). Since its beginning, Raydium was reading TGA as if the "y flip" bit was set, whatever it was or not. But as a lot of files in the repository were created without this bit set, Raydium now reads these files upside down. And everything is broken.

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Don't panic. Oh no, wait, do !

We've changed almost all textures in the official R3S repository so the y-flip bit is set. Everything should then looks OK again, all you have to do is refresh you own files, using one these two methods:

1 - Use the "--repository-refresh" command line tags with all applications. It will force the application to download modified files from the repository. But remember to fully use all functionalities: for instance, with test6, you must run the demo, fire a rocket, fire a bullet, add a crate (space key), ... It's the only way to be sure that all textures will be used.

2 - Use our magic texture pack : http://ftp.cqfd-corp.org/raydium_repo_f ... xtures.tgz
In this archive, you'll find all textures available (and fixed) in the repository. Just refresh your own data files with all this, and everything will be OK.

You may have to fix your own textures, too, so be vigilant when launching your applications using this new Raydium release, to be sure to detect all flipped textures (if any). You can use any Gimp-like application to reverse your TGA files. We may also provide a small tool to help you doing this on a big amount of files, just ask for it in the comments.

We'll also ask you, please, to report any trouble with "official" textures from the repository, we may have missed something.

We apologize for all this, and be sure we do our best to avoid compatibility breaks, but TGA reading abilities of Raydium were too limited to cover all needs, so this rewrite was mandatory.

Sorry, again, for any inconveniences caused, and have fun with this new TGA reader ! :) (tip: Blender and Raydium are now friends about TGA)


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PostPosted: Tue Oct 21, 2008 8:51 am 
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Credits for the main picture: http://flickr.com/photos/carlson13/405282167/
(Thanks to http://upsidedowndogs.com/ website)


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PostPosted: Tue Oct 21, 2008 10:47 pm 
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Joined: Tue Jul 08, 2008 2:37 am
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Great news! Thank you very much for the improvements!

I want to re-export my images with RLE compression. I've one question regarding the new Targa loading behavior:

Which is the valid systemwide origin setting for Raydium in The GIMP to save a TGA file?
a) The default origin setting is bottom left (http://ftp.cqfd-corp.org/GimpSaveTargaRLEBottomLeft.png).
b) But there is also the top left origin option to choose (http://ftp.cqfd-corp.org/GimpSaveTargaRLETopLeft.png).

I'm currently using the latest official release build of The GIMP version 2.6.1.

Thank you very much.

Best regards,
st


Attachments:
File comment: a) Default settings in The GIMP.
GimpSaveTargaRLEBottomLeft.png
GimpSaveTargaRLEBottomLeft.png [ 6.44 KiB | Viewed 11642 times ]
File comment: b) Second origin option in The GIMP.
GimpSaveTargaRLETopLeft.png
GimpSaveTargaRLETopLeft.png [ 6.18 KiB | Viewed 11630 times ]


Last edited by st on Wed Feb 15, 2012 6:45 pm, edited 1 time in total.
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PostPosted: Wed Oct 22, 2008 6:20 pm 
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st: as you want ! This last option will set or not the y flip bit in the file, and since Raydium is now able to read this bit correctly, the texture will always be loaded with the suitable origin.


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PostPosted: Wed Oct 22, 2008 6:47 pm 
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Joined: Tue Jul 08, 2008 2:37 am
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Ok, thanks for the educational advertising. Afterwards my question was a bit overdue ... things are clear now.


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