Merge branch 'master' of https://github.com/worklist/hifi into ssao
Merge branch 'master' of https://github.com/worklist/hifi into ssao
Add blur scale uniform.
Merge branch 'master' of https://github.com/worklist/hifi into ssao
Optimizations for occlusion blur (the main one being that we only need to
sample the texture four, not sixteen, times if we turn on linear filtering
and sample between the texels).
Merge branch 'master' of https://github.com/worklist/hifi into ssao
Cleanup.
More cleanup.
Merge pull request #872 from ey6es/ssao

Performance improvement for the SSAO blur step, cleanup.