Hey guys, I'll ask tomorrow at work, for the Mac ATI at least. What is it supposed to look like relative to the picture you posted? --Mike
On Thursday, June 6, 2013, Ton Roosendaal wrote: > Hi, > > Yes of course that's it... 12 or 16 bits color displays had it. A decade > ago! > In the SGI days, many systems did double-buffer by halving the color space > to 2x12 bits, dithered too. > > Nevertheless, for 24 bits "true color" it would look nicer too :) > > -Ton- > > -------------------------------------------------------- > Ton Roosendaal - [email protected] <javascript:;> - www.blender.org > Chairman Blender Foundation - Producer Blender Institute > Entrepotdok 57A - 1018AD Amsterdam - The Netherlands > > > > On 6 Jun, 2013, at 14:10, Brecht Van Lommel wrote: > > > I can't find good info on it either, maybe it was only ever used for > > OpenGL color index mode or displays with less than 8 bits per color > > channel? > > > > The dither implementation is not specified by the OpenGL > > specification, and it's valid to not do any dithering at all. > > > > On Thu, Jun 6, 2013 at 12:58 PM, Ton Roosendaal > > <[email protected]<javascript:;>> > wrote: > >> Hi all, > >> > >> Someone pointed me at the banding, visible in shaded 3d viewports with > greyscales. > >> None of the systems I tried (mac nvidia, mac ati, linux nvidia) shows > any dither in the viewport... and there's nothing in the code pointing at > being disabled. > >> > >> I checked it with a print in the graded backdrop drawing: > >> printf("dither is %d\n", glIsEnabled(GL_DITHER)); > >> > >> And it says it's on. > >> > >> Screenie, with expanded color range to see the banding: > >> http://www.pasteall.org/pic/52953 > >> > >> Shouldn't it show a nice stipple pattern? I recall this, but more like > from 10 years ago or so :) > >> > >> Googling about it didn't give me info about this feature being dropped > in drivers nowadays. > >> > >> -Ton- > -- Mike Erwin musician, naturalist, pixel pusher, hacker extraordinaire _______________________________________________ Bf-committers mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-committers
