Addition of GouraudAttributes to simulate Gouraud smooth shading. As each attribute, it can be used with any material.

Collada parser rotation bug fixed

ColorUtil class has been removed.

Speed improvement in BitmapMaterial perspective correction method.

Addition to a property to change the level of recurssion in perspective correction.

Addition of material interactivity. Shape3D has enableInteractivity property which when set to true and applied with a MovieMaterial, enables interactivity with that material.

USE_FAST_MATH is now set to false by default for more accuracy but less performance. This can be changed if user needs top speed.

make rectClipping enable by default on scenes.

Correction of visible property.

Correction in BBbox transformed points computation.

Fix Vector.getAngle division by zero error.

General ressources free has been improved.

Scenes are unregistered from SceneLocator when disposed.

BitmapMaterial, MovieMaterial and VideoMaterial setTransparency method optimization.

Small bug fix in Sprite3D at some certain angles.

Correction of the ZshaderMaterial

Addition of a new property autoCenter to Sprite3D and Sprite2D to specify if sprite center or sprite top left corner shall be at the screen point location.

General optimization, code cleaning and documentation