G Buffer and deffered rendering option

[wpsimon09]

Since what currently is depth prepass, it also generates position buffer and normal vector buffer.

I could turn the depth prepass to be GBuffer pass, while keeping the depth prepass. This way i can switch between deferred and forward rendering modes.

The g buffer where the images are can be stored in a single array image

[wpsimon09]

• g buffer is being created the deferred renderer should not be that hard to implement given that all data are available to it