#Backwards Bumps
5 messages in this thread
Just something that's been bothering me for a while. If I mirror an object
which has mapping coordinates and has a bump map applied, the mirrored object
seems to have the bumps going in instead of out. Is the mirror command flipping
the mapping normals or something? Have I just gone crazy? The problem is solved
with reapplying the mapping.
– Neil
when you apply a bump map to an object, the value (intensity) of the map is
inverted on the opposite sides of the polygons you apply it to. – you can see
this real quick by applwing planar mapping coordinates to a sphere, and
applying a bump mapped material – the area on the opposite side of your object
will have the bump map inverted.
I'm guessing that when you mirror an object, the normals are getting flipped,
thus showing the inverted area of your bump mapping.
-Kyle
Thanks Kyle, I guess there's no easy way to fix it. It seems like an odd bug
because most humanoids and robots etc, have objects like hands and feet that
need to be mirrored, and I and I'm sure others use the command a lot.
– Neil
Neil:
Just flip the normals after you mirror your objects and you should be in
business.
– Bob Ritger
Thanks, I'll do just that.
– Neil