Hi Bryn, Bryn Cooke <[email protected]> wrote on 02/23/2009 05:02:14 PM:
> I have been trying to apply a drop shadow to a rectangle with a > gradient fill and have been getting a strange banding effect. > The banding can be reproduced using the following SVG: Add 'color-interpolation-filters="sRGB"' to the filter element, and the banding will go away. > Strangly I get similar banding in Firefox, but not in Inkscape. So > I'm wondering if this banding is caused by something in the SVG spec? The effect is caused by converting the data to linear RGB and then back to 'gamma' sRGB. Without the CIF attribute all filter operations are performed in linear RGB space. With 8bits for linear you get banding in the darker colors. As to why Inkscape doesn't show this it either skips going to linear or they perform filters with 16bit (or higher) precision.
