The code below works, but by my reasoning it shouldn't.  I had to move a 
"}" to what is "clearly" the "wrong" location (obviously it isn't wrong, 
since it works; what is wrong is my logic.)  When I close out my objects 
the way I think I should, I get a parse error.  Can someone spot my 
mistake?

(If the code seems a bit strange, it's because I've stripped it down as 
  much as I can, I think, and still have the problem.)

////////Code
//Ball-And-Stick Fragment

#macro B_And_S_Triangle(V_Array,BR,SR)
         union {
         sphere { 0, 1  scale BR pigment { color rgb x }
                  translate V_Array[0]}
         sphere { 0, 1  scale BR pigment { color rgb y }
                  translate V_Array[1]}
         sphere { 0, 1  scale BR pigment { color rgb z }
                  translate V_Array[2]}
         cylinder { V_Array[0], V_Array[1], SR
                    pigment { color rgb x+y } }
         cylinder { V_Array[0], V_Array[2], SR
                    pigment { color rgb x+y } }
         cylinder { V_Array[1], V_Array[2], SR
                    pigment { color rgb x+y } }
         }
#end
//Of Macro The problem's probably somewhere above, but I can't find it.



// Second macro, calls above macro twice:

#macro Ball_And_Stick(SArray,DArray,B_Rad,S_Rad)

#declare Source_Triangle =
                      B_And_S_Triangle(SArray,B_Rad,S_Rad)

#declare Destination_Triangle =
                      B_And_S_Triangle(DArray,B_Rad/2,S_Rad/2)

//Here's "misplaced" "}"

object { Source_Triangle }}

//I think there should only be one "}" ending above object

object { Destination_Triangle }

#end    //Of 2nd macro


// Here's the main body


#declare Source_Points = array[3];

#declare Source_Points[0] = <0, 0, 0>;
#declare Source_Points[1] = <0, 5, 0>;
#declare Source_Points[2] = <5, 0, 0>;


#declare Destination_Points = array[3];

#declare Destination_Points[0] = <1, 1, 0>;
#declare Destination_Points[1] = <2, 1, 0>;
#declare Destination_Points[2] = <1, 2, 0>;

//Here's "missing" "}"
object { Ball_And_Stick(Source_Points,Destination_Points,0.5, 0.1)
//I think there should be a "}" to end the above object.

camera { angle 60 location <3, 3, -20>
	look_at <3, 3, 0>
	right x*image_width/image_height
         up y }

light_source { -100*z color rgb 1 }

background { color rgb 0.7 }


//////////////////////////
I've been tearing out what little hair I have left, trying to solve 
this.  Thanks in advance for any help.

Dave Matthews

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