Mael wrote in message <3b9c87b0$1@news.povray.org>...
>
>sphere { 0,.1 translate mymacro(MySpline( <----ERROR
>Parse Error: Expected ')', ( found instead


This is because POV-Ray comes across the "MySpline", and thinks you are
passing the entire spline to the macro.  Then it finds the parenthesis, and
gets confused.

>however if i add parenthesis it works
>
>sphere { 0,.1 translate mymacro((MySpline(.5))) pigment {color rgb 1}}


This time, POV-Ray finds the parenthesis, and is expecting a number or
vector.  As a result, when it finds the "MySpline", it evaluates the spline
at 0.5, and passes the result to the macro.

Because of the way the POV-Ray parser works, I don't think this behavior can
easily be changed.

--
Mark

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