Roland Scheidegger wrote on 2010-02-03 16:47: > On 03.02.2010 16:07, michal wrote: > >> Keith, >> >> This feature branch adds cylindrical wrap texcoord mode to gallium >> shader tokens and removes prefilter field from sampler state. >> Implemented cylindrical wrapping for linear interpolator in softpipe. >> Not sure whether it makes sense to do it for perspective interpolator. >> Documented TGSI declaration token. >> >> Sample fragment shader declaration that wraps S and T coordinates follows. >> >> DCL INPUT[0], GENERIC[0], LINEAR, CYLWRAP_XY >> >> Please review so I can merge it to master. >> > > Michal, > > why do you need this for linear interpolator and not perspective? I > think d3d mobile let you disable perspective correct texturing, but it > is always enabled for normal d3d. > I could not think of a use case that uses perspective and cylindrical interpolation at the same time. If you think it's valid, we can implement cylindrical wrapping for perspective interpolator, but then I am not sure how exactly it should be done, i.e. should we divide and then wrap or the opposite?
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