The following renders different in 3.7 than it did in 3.61

camera {
   location <0, 20, -30>
   direction <0, 0,  1.75>
   right x*1.33
   look_at 0*y
}

light_source {< 50, 30, -20> color rgb 1}

plane { y, 0
    pigment {checker color rgb .4 color rgb .8
        scale <1, 1, 10000>
        rotate y*45
    }
    finish { ambient 0.45 }
}

In 3.61 the transition edge is in the lower left.
In 3.7 beta 28 the transition edge is in the middle.

This is based on the brasses.pov scene file in scenes\incdemo\metals.

Stephen S

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