It appears to me that when rendering multiple scenes (or animation 
frames) in POV-Ray 3.6.2, and one of them contains an assumed_gamma 
statement, that setting carries over to the next scenes as default.

I.e. if an animation contains the statement

     global_settings {
       #if (frame_number=1)
         assumed_gamma 1.5
       #end
     }

then frames 2 and following will render with assumed_gamma 1.5 if the 
animation is rendered from the very start, but without any gamma 
correction if only frames 2 and following are rendered.

Can someone confirm?

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