-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 OpenRaster should be able to store layers which colorize or set the lightness of underlying pixels. It's a commonly requested feature from artists using MyPaint.
Given the active Editor's Draft from the W3C CSS-SVG Effects Task Force which is up at http://dvcs.w3.org/hg/FXTF/rawfile/tip/compositing/index.html would anybody object to my adding the following composite-op values to the OpenRaster Layers Stack specification[1] using the following new bullet point: """ * In addition, the following non-separable compositing operations are defined in the (SVG, Canvas and CSS) _Compositing and Blending 1.0 Editor's Draft_[[link]]: svg:color | svg:luminosity | svg:hue | svg:saturation. """ Of interest, they're the non-separable blend modes defined in the PDF specification and also in the Cairo compositing operators docs[2]. There is sample code available at https://gitorious.org/~achadwick/mypaint/achadwick-mypaint in the branch "layer-colorize-2" which implements the Color and Luminosity blend modes. I would like to push this branch to the MyPaint development master reasonably soon. Would the Krita and GIMP folks reading this be OK with the change outlined above? [1] http://www.freedesktop.org/wiki/Specifications/OpenRaster/Draft/LayersStack revision 3, dated 2012-03-28 20:41:47 [2] http://cairographics.org/operators/ , CAIRO_OPERATOR_HSL_COLOR and CAIRO_OPERATOR_HSL_LUMINOSITY - -- Andrew Chadwick -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAlARpG0ACgkQo3CEnCcHJXd4NACeIKti/1me41Y330eG2SZHKF3w 9EoAniz7dc8wyq7B4GimYVIn8Wnw6bjz =v7/1 -----END PGP SIGNATURE----- _______________________________________________ CREATE mailing list CREATE@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/create
