Re: [Flightgear-devel] Re: Help... aircraft texture
Melchior FRANZ wrote: * Melchior FRANZ -- Friday 03 June 2005 08:12: * gimp: - save as foo.rgb and select SGI in the Determine Filetype selector (Don't use By extension, because that creates some other *.rgb format) - or save as foo.sgi and then rename to foo.rgb When asked for the Compression Type, choose Aggressive RLE (Not supported by SGI). (This *is* supported by SGI, it's in SGI's own SGI image format spec. This compression type is supported by GIMP, KDE, ImageMagick, Blender, plib, ... and is the smallest that GIMP can write. (Could be made smaller by other programs. Just ask. :-) * any graphics program. Save to any format. But then convert to SGI using ImageMagick's convert: $ convert foo.jpeg sgi:foo.rgb convert seems to use (non-aggressive) RLE by default. If not, use the -compress RLE option. $ convert foo.jpeg -compress RLE sgi:foo.rgb m. ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d Yes, I remember this, but I can't seem to find it in the archives. How does one strip out alpha channels again? Josh ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
[Flightgear-devel] Re: Help... aircraft texture
* Josh Babcock -- Saturday 04 June 2005 19:14: Melchior FRANZ wrote: $ convert foo.jpeg -compress RLE sgi:foo.rgb How does one strip out alpha channels again? Don't know with convert, although I would be surprised if it weren't able to. I use KDE for that. You can load the image in kolourpaint and save it again, which makes some textures a lot smaller. I've got an external program (compilable under KDE only [1]) that does this from the command line (and even compress a little more). Doesn't look like you are a KDE guy, though. :-) m. [1] http://members.aon.at/mfranz/rle.tar.gz [5.5 kB] $ make rle Usage: rle [--description string] file(s) $ ./rle foo.jpg bar.png ... creates foo.rgb and bar.rgb ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
[Flightgear-devel] Re: Help... aircraft texture
* Sam Heyman -- Friday 03 June 2005 02:46: How does one create a new texture for a .ac model? Which programs are best suited? Textures need to be in the SGI image format with size 2^n * 2^m. Often they are 256*256, 512*512, 1024*1024, but 128*1024 does work, too. They are in SGI format, which uses different extensions: *.rgb, *.rgba, *.sgi, *.bw, *.al. The extensions are only hints for the user. There's no formal difference between *.rgb and *.rgba. People often call that format RGB format. Either use: * gimp: - save as foo.rgb and select SGI in the Determine Filetype selector (Don't use By extension, because that creates some other *.rgb format) - or save as foo.sgi and then rename to foo.rgb * any graphics program. Save to any format. But then convert to SGI using ImageMagick's convert: $ convert foo.jpeg sgi:foo.rgb * blender: these are only drafts and have to be finished in gimp etc. but you can create very useful object outlines, and even draw directly on the texture while it is applied to the object! It'll save to TGA (Targa) format and you'd have to convert that to SGI again. * KDE's kolourpaint does write SGI images, too, just like any other KDE program that can write images. m. ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
[Flightgear-devel] Re: Help... aircraft texture
* Melchior FRANZ -- Friday 03 June 2005 08:12: * gimp: - save as foo.rgb and select SGI in the Determine Filetype selector (Don't use By extension, because that creates some other *.rgb format) - or save as foo.sgi and then rename to foo.rgb When asked for the Compression Type, choose Aggressive RLE (Not supported by SGI). (This *is* supported by SGI, it's in SGI's own SGI image format spec. This compression type is supported by GIMP, KDE, ImageMagick, Blender, plib, ... and is the smallest that GIMP can write. (Could be made smaller by other programs. Just ask. :-) * any graphics program. Save to any format. But then convert to SGI using ImageMagick's convert: $ convert foo.jpeg sgi:foo.rgb convert seems to use (non-aggressive) RLE by default. If not, use the -compress RLE option. $ convert foo.jpeg -compress RLE sgi:foo.rgb m. ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] Re: Help... aircraft texture
On Fri, 3 Jun 2005 11:54:48 +0200, Melchior wrote in message [EMAIL PROTECTED]: When asked for the Compression Type, choose Aggressive RLE (Not supported by SGI). (This *is* supported by SGI, it's in SGI's own SGI image format spec. This compression type is supported by GIMP, KDE, ImageMagick, Blender, plib, ... and is the smallest that GIMP can write. (Could be made smaller by other programs. Just ask. :-) ..hey, what happened to RTFM? ;o) -- ..med vennlig hilsen = with Kind Regards from Arnt... ;o) ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
