D18377: Update blur to be more natural

zzag added a comment.


  In D18377#400281 <https://phabricator.kde.org/D18377#400281>, @fredrik wrote:
  
  > Basically yes, but it's important to keep in mind that the framebuffer contents are effectively sRGB even though the framebuffer format is not.
  >  So in other words, GL_FRAMEBUFFER_SRGB must be disabled when doing the initial copy from the framebuffer to the first sRGB texture, so the gamma curve is not applied twice.
  
  
  May it cause issues on GLES?

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D18377

To: anemeth, #vdg, #kwin, davidedmundson, zzag
Cc: fredrik, abetts, Petross404, rapiteanu, filipf, rooty, ngraham, kwin, jraleigh, GB_2, mkulinski, ragreen, jackyalcine, Pitel, iodelay, bwowk, ZrenBot, lesliezhai, ali-mohamed, hardening, jensreuterberg, sebas, apol, mart