simplified vector_reflect_about_normal
commite2d7d68a4056f82a17ba6ca53ed492bb7dd04d11
authorplouj <plouj@b8c14938-b733-429d-887c-d66ed1f8cd15>
Tue, 15 Jan 2008 22:23:41 +0000 (15 22:23 +0000)
committerplouj <plouj@b8c14938-b733-429d-887c-d66ed1f8cd15>
Tue, 15 Jan 2008 22:23:41 +0000 (15 22:23 +0000)
tree1aa76fec9b968039f6bf09415e5f391d009fcfb9
parentac507a6e9d22a9d52a640f5b61ec23c626ec5961
simplified vector_reflect_about_normal

git-svn-id: http://svn.plouj.com/repos/eraytracer@35 b8c14938-b733-429d-887c-d66ed1f8cd15
raytracer.erl