I've created a pigment type which depends on a variable, n. If I
#declare n before the pigment code, it runs correctly.

However, I would like to be able to call this pigment type many times,
with different values of n. I thought that I could simply remove the
#declare before the pigment code, and use the code like:

texture { #declare n=1
              PigmentName
            }
texture { #declare n=2
              PigmentName
            }

However, POV complains that n is undefined when it first encounters the
code.

How can I use the pigment code as a procedure, called with the variable?
I've tried #macro, but haven't gotton anything working.

Thanks!


Simon

Post a reply to this message