klaxian wrote:Sorry, OpenGL is much slower for me than raster and I'm running a very powerful computer (i7 3770k @ 4.6GHz, 2 x Nvidia GTX 480 SLI, 16GB DDR3 2133MHz). Cropping is very laggy with OpenGL whereas raster is super fast. Perhaps the fact that I'm running 3 screens with Xinerama enabled has something to do with it?
Must be Nvidia driver or Nvidia/Qt issue then because I have i7 3770k and use the Intel built-in graphics and both raster and OpenGL work fast and nice. Dual monitor here (1920x1200 x2).