Hi all!
See message with same subject in p.b-t for explanations... Here's the
result, on the left with beta 5, on the right with official 3.6.1a. Source
also attached... in case i did something obviously stupid in there and both
versions just don't handle stupidity the same way  ;)

JYR


// Begin source...
// A Dice

global_settings {
    assumed_gamma 2.2
    max_trace_level 8
}

#declare Span = 82*y;

camera {
    location -7.2*z
    look_at -1.6*y
    rotate Span
}

light_source {<3, 4, -5> rgb 1 rotate Span}

// A dice with no black dots yet
#declare Scale = 1.375;
#declare Blank_Dice =
intersection {
    box      {-1, 1}
    sphere   {0, 1.6}
    cylinder {-x, x, 1 scale Scale}
    cylinder {-y, y, 1 scale Scale}
    cylinder {-z, z, 1 scale Scale}
    pigment  {rgb 1 transmit .4}
    finish  {diffuse .82 ambient .15}
}

// A single black dot
#declare Black_Dot =
sphere {
    -z, .15
    pigment {rgb .1}
    finish {diffuse .9 ambient .1 phong .35 phong_size 10}
}

// Create the dot patterns on each side of the dice
#declare Face_1 = object {Black_Dot}

#declare Face_2 =
union {
    object {Black_Dot translate < .5,  .5, 0>}
    object {Black_Dot translate <-.5, -.5, 0>}
}

#declare Face_3 =
union {
    object {Face_1}
    object {Face_2}
}

#declare Face_4 =
union {
    object {Face_2}
    object {Face_2 rotate 90*z}
}

#declare Face_5 =
union {
    object {Face_2}
    object {Face_3 rotate 90*z}
}

#declare Face_6 =
union {
    object {Face_4}
    object {Black_Dot translate  .5*x}
    object {Black_Dot translate -.5*x}
}

// Create the completed dice
#declare Dice =
difference {
    object {Blank_Dice}
    object {Face_1}
    object {Face_2 rotate -90*y}
    object {Face_3 rotate  90*x}
    object {Face_4 rotate -90*x}
    object {Face_5 rotate  90*y}
    object {Face_6 rotate 180*x}
}

// Set the dice on display
object {Dice rotate 45*y rotate 52*x}

// On a Reflective Plane
plane   {
    y, -1.6
    pigment {rgb 1}
    finish {reflection .95 diffuse .08 ambient .01}
}

// end source code

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