i was reading the topic "camera pan and entity pan" and i wouldve just replied to his with my question but i didnt think it would be right. so please forgive me for making a 2nd topic on one subject

anyways, im trying to make a 3rd person cam as well, but every time i mention the temp vector, it says x is an undeclared identifier, i dont get it. why is it doing this? it happens in lines like this:
vec_diff(temp.x,camera.x,my.x);
i of course have a variable to define "temp". i dont understand what im doing wrong.