Alpha test in shadow map

The alpha test implemented in engine and shadow map renders meshes with alpha test.

Shadow map & PhysX

The shadow map implemented in KGE and there is an effect manager now that works with scene manager together.

The effect manager controls shadows, post process effects and some built in materials.

The KGE physX port is updated and now it has Ray casting, dynamics, triggers, collision detection and some new shapes.

Shadow map

• I worked on shadow mapping and after some works finally I successfully implemented shadow mapping for directional lights but I don't add this feature to the engine yet.

• Now KGE use PhysX for the physics and dynamics You can build the terrain shape and box for the dynamics and we will add more shapes for dynamics later.
• Everything in scene is rendering with multistream
• The Animated Meshes and tile terrain now use dynamic vertex buffers