On Mon, Oct 27, 2008 at 2:02 PM, Mikael Liljeroth
<[EMAIL PROTECTED]> wrote:
> evas_object_clip_set(..):
>
> "the resulting color for the clipped object is RESULT = (OBJ * CLIP) / (255
> * 255) per color element"
>
> First of all, I do not understand what this really means, if OBJ and CLIP
> are 8 bit values the RESULT
> would be between 0 and 1, so I assume that RESULT is some kind of factor of
> 255?
> My real problem is that I want to clip an Evas_Object without having its
> color multiplied, is this possible?
> I think it is a little bit strange that evas_object_clip_set would have
> anything to do with color
> manipulation in the first place. Are there any benefits of having the
> clipper affecting the color?

use white color. if you think in terms of relative color, white is
1.0, so color * 1.0 = color, of course this is optimized inside Evas
and will have no extra overhead at all.

clip + color modulation is used in many ways, the most common is to do
"fade-in/out" effects, you just iterate the clipper's colors from 0 to
255 to fade in and 255 to 0 to fade out.

-- 
Gustavo Sverzut Barbieri
http://profusion.mobi embedded systems
--------------------------------------
MSN: [EMAIL PROTECTED]
Skype: gsbarbieri
Mobile: +55 (19) 9225-2202

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