Initial work (skeleton) to support frustrum culling, some refactor to models and Renderable.
Adding a method for computing vertices of a bounding box. Created a MainCulling for testing frustrum culling.
Switching to float[] for bounding box vertex list.
Added a TODO for simplifiying the hull.
Computing frustrum planes from viewProj matrix. Added computation to check if a point is inside the frustrum.
Working implementation of frustrum culling using the left and right frustum planes.
Added concrete test for culling.
Finished up frustrum culling with the new method (only rejecting if all points fail a plane.
Fixed bug with near+far plane not working properly.
Moving adding DWO into the ParticleEmitter to simplify the client.
Reverting DWO change.
Adding previously removed import.
Merge pull request #32 from jtmzheng/frustrum-culling

Frustrum culling