Cursor events not working in Firefox

[jcarpenter]

Cursor events don't seem to be working in Firefox. Have experimented with links and hover states, and both work correctly in Chrome but fail in Firefox.

Test case here: http://mozvr.github.io/cssvr-experiments/20150802-03/index.html

[jcarpenter]

May be related to issue #13 ?

[dmarcos]

This seems related to z-ordering issues. If I remove the front face of the cube that is behind of the menu events work properly.

[jcarpenter]

Interesting, okay so it must be related to the "ray casting" issues (for lack of a better description) that @caseyyee encountered when implementing Horizon's DOM cursor. Wherein the "ray" from camera to cursor originates from an infinite point behind the camera, thereby hitting elements behind us first.

[jcarpenter]

Related bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1171756

[jcarpenter]

Removing front face of the cube (the one behind the elements being clicked) solves the issue. So it seems to be an ordering issue, whereby Firefox is incorrectly interpreting depth ordering. Per #15