Refraction

I implemented Refraction effect in KGE and now effect manager can manages post process effects too.
Effect manager can prepare rendered images upon the post process effects needs. For now effect manager prepare the color map.

I add a screen shot from Simorgh editor here.
Simorgh editor is a 3D world editor build with KGE

Multi stream added

I added multistream to the engine which was introduced in GPU gems 2 book. When I test shadow mapping with multistreaming I gain 7% speedup.

I also work on a new shader design that is XML based and add flexibility to the engine for shaders.
This design is not artist friendly but it is programmer friendly instead.