Matt Dean

To support non-instant disabling of instance types (such as fading out renderers) we need to support padding a pool with x disabled instances.

Investigate different ways of applying object normal maps to the normals texture. Replacement shader doesnt work in SRP :( See branch `feature/normal-mapping`

Add graphics tests to cover visual elements that cant be covered by editor tests. Investigate different ways to implement a graphics test framework. Tests to consider: - Projection - Orthographic...

Currently reflecting a surface that has mirror reflections is undefined. Look in to recursive planar reflection (see paper [here](http://www.cse.chalmers.se/~uffe/xjobb/Readings/Reflections/Rea-time%20Recursive%20Specular%20Reflections%20on%20Planar%20and%20Curved%20Surfaces%20Using%20Graphics%20Hardware.pdf))