Hey there.

I've searched the forum for the last hour to find a solution for this, but seemingly noone of you already had this error or the search engine doesn't work.

When I try to use the Environment Cubemap material (on any object), the level gives a script error at this position:
Code:

---

mat_set(mtl.matrix,matViewInv);

---

"Parameter unknown mtl Keyword"

What's wrong with that? That code is directly from the Wiki and I've seen people actually using it without having to define what "mtl" is.

I hope somebody can help me? As quick as possible, please.
Thanks in advance!