3.7.0.beta.11b.icl8.win32

Only did a little checking about this but looks like only image_map is 
affected, not other transparent things using transmit or filter in colors, 
and I didn't find any mention of it after a quick search. The script below 
uses the sample test image included with POV that says POV-Ray on it (in 
white) along with letter pairs in black for each quarter section: TL, TR, 
BL, BR (I'll post similar resulting rendered images from 3.6 and 3.7 at 
beta-test.binaries to show which image file I'm talking about, but others do 
same anyway).

Also, although this uses clipped_by here, I first noticed this in a CSG 
difference used to hollow the sphere so the shell would have thickness but 
it seems to only be about the image_map+transparency+light_source somehow.

camera { location -3*z }

light_source { <10,10,-10>, color rgb <1,1,1> }

sphere { 0,1
 clipped_by {
  box { 0,1 inverse }
 }
  pigment {
   image_map {
    gif "test.gif" // test image
    map_type 1
    transmit 4, 1
   }
  }
 rotate <30,150,0>
}

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