Re: [Tuxpaint-devel] tinter broken

[Bill K. <nb...@so...>]

On Sun, Mar 12, 2006 at 07:12:54PM -0500, Albert Cahalan wrote:
> > I recently extracted the "Extending Tux Paint" section from the README
> > (which covers the creation of brushes, stamps, starters, etc.), and noticed
> > that (1) it still mentions "tintnogrey" which I guess you removed a long
> > time ago, and (2) it does NOT mention the "tinter=..." options.
> 
> I can't find the README at all, but the tinter seems to work. :-/

FYI, the "Extending Tux Paint" section in README has been broken into a new
file, EXTENDING.  They are HTML files living in "docs/html", and a Makefile
in "docs" can be used to generate the plaintext versions that live in
"docs/".  (It uses an invocation of "links -dump" to do this.)


> I pick the race car. I choose a color. The red parts of the car change
> to that color. The non-red parts remain as they were. That includes
> the yellow on the helmet, the black tires, the grey wheels, and the
> white paint up top.

Comes out pretty badly for me. :^/  Black comes out solid black, for
example.


> You don't get the same thing???

See:

  http://www.sonic.net/~nbs/20060312162357.png


> FYI, I'm using a CPU with floating-point math like this:
<snip> 
> To make your computer more like mine for testing purposes, try the
> compiler options to use sse3 for floating-point. (if your CPU can run
> such code) You can also try replacing -ffast-math with -ffloat-store.
> (these options might slow things down, but might help for debugging)

Ah-hah!  That did it!  See:

  http://www.sonic.net/~nbs/20060312162748.png


I guess for now I'll use "-ffloat-store" in the CFLAGS...?


(FYI, that pict. looks darker when I view with something like "xview",
and looks better inside Tux Paint, GIMP or Konqueror.  Xview being lame
about PNG gamma?)


> narrow: tint a narrow hue angle
> normal: tint a normal hue angle
> anyhue: tint a 360-degree hue angle
> 
> vector: make greyscale, then black=black and white=selected
<snip>

Thanks!  I'll try to incorporate this into the docs.

-bill!