Hi! In particular, is there any other example apart of the raster_source.c file from the test folder of the source code? <a href="http://cgit.freedesktop.org/cairo/tree/test/raster-source.c">http://cgit.freedesktop.org/cairo/tree/test/raster-source.c</a> I'm very interested on use this new feature but I'm a little lost on how to implement and adapt to my case. Thanks! <div class="gmail_quote">2012/8/17 Carlos López González <<a href="mailto:genetita@gmail.com" target="_blank">genetita@gmail.com</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi! I have a function that provides a color for a given position: Color get_color(Point &p)const; where Point is a convenience class for the double x and y user coordinates in the 2D space. I think it is possible to generate a surface image from that function using the Raster Sources [1] API Is there any practical example of that? Thanks! [1] <a href="http://cairographics.org/manual/cairo-Raster-Sources.html" target="_blank">http://cairographics.org/manual/cairo-Raster-Sources.html</a> -- Carlos <a href="http://synfig.org" target="_blank">http://synfig.org</a> </blockquote></div> -- Carlos <a href="http://synfig.org" target="_blank">http://synfig.org</a>