I downloaded this from the wiki site, copied an pasted it into a new WDL file and included it into my level.
I keep getting the error below, not sure how to get passed this. Is there something wrong with copying directly from a web page? or are there pointers that need to be defined?

Error in effect:
mtl_toon(44): error X5326: Read of uninitialized components(*) in v0: *x/0 *y/1 *z/2 *w/3
(45): error X5326: Read of uninitialized components(*) in v3: *x/0 *y/1 *z/2 *w/3
(51): error X5326: Read of uninitialized components(*) in v7: *x/0 *y/1 z/2 w/3
(80): error X5326: Read of uninitialized components(*) in v0: *x/0 *y/1 *z/2 *w/3
(81): error X5326: Read of uninitialized components(*) in v3: *x/0 *y/1 *z/2 *w/3