Hi,
Here is how I do it...the first part probably makes no sense, but I
am used to doing it that way :-)
1) Create a basic 640x480 pic with the correct branding, etc. as vector.
2) scale that down to 640x400
3) add extra highlights, glow and shadows as appropriate
4) save a pic as 24bit png
5) change to indexed color (no dithering), 15 colors if you need to
add a white or red for text purposes...save the file
6) open the colormap dialogue and swap colors where necessary to make
it fit to the code...note that your pic starts looking funky really
quick - save that with another name
7) open the pic without the adjusted colormap from step 5, select
all, copy, and paste into the one from step 6 - gimp adjust the index
stuff automagically
8) touch it up per hand as necessary (didn't go this far yet on the
pics I posted on the wiki)
pngtobogl it, and build, link, etc.
I would suggest staying away from command line tools to edit these
pics because of the small size, aspect ratio/scaling issues and the
limited number of colors.
Bye,
Ken
On May 17, 2006, at 1:44 AM, Étienne Bersac wrote:
Hello,
1) Obtain an optimum 16 color palette via careful scrunching.
2) Import the palette via Gimp's palette tool.
3) Scuttle the palette entries around in accordance with
https://wiki.ubuntu.com/USplashCustomizationHowto?highlight=%
28usplash%
29
4) Re-work the working image down to a 16 color palette based on the
final palette (Mode shift option in Gimp).
5) Try to run 'pngtobogl usplash-artwork.png > usplash-artwork.c'
6) usplash-artwork.c results in an error with too many colors in the
file.
Okey, compare with my workflow :
1. Create a 640x480 picture with Gimp
2. Export it to PNG. Convert it to 16 colors with Gimp (don't
know
how to order colors in the palette with the Gimp). Be careful
about flat surface. manual retouch. etc.
3. Resize it to 640x400 with convert (i wish it keep the palette,
but not sure)
4. pngtobogl it
5. build, link it, etc.
Step 3, 4 and 5 are handle by the Makefile. Installing it with sudo
make
install. I got black screen.
I would like to see Frank Schoep workflow for his minimalistic, or any
other working workflow.
Étienne.
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