Am 01.09.2014 21:52, schrieb Milan Knížek: >> these days. The more easy way is using OpenGL. > Is there anything special for Krita to display in 30-bit depth other > than to choose "Enable OpenGL" in Preferences / Display and load a > 16-bit encoded image? I used Compiz as WM. Krita -> [top menu] Settings -> Configure Krita -> Display [left tab] -> [x] Enable OpenGL + a proper gradient test image e.g. http://www.oyranos.org/images/16bit-gradient.png from http://www.oyranos.org/wiki/index.php?title=Test_Images should reveal the smothness of gradients. Compare with zooming 100% in Krita and e.g. FF . kind regards Kai-Uwe