Distorted Android

Revert "Major refactoring: convert the Matrix Effects to be independent of the resolution of the surface we render to."

This reverts commit ec231614152da2cfdb65c3450cd47da83ee05a6f.

revert the recenr matrix Effects work.

Revert "Minor."

This reverts commit 5fecbdb9d145354d84f0168b434a74d84c192c56.

revert the recent Matrix Effects work.

Revert "Convert next 4 APPs to the new Matrix effects."

This reverts commit d28acefad49451b502424dae12ec8a985007de86.

revert the recent Marix Effects work.

Convert next 4 APPs to the new Matrix effects.

Minor.

Major refactoring: convert the Matrix Effects to be independent of the resolution of the surface we render to.

Re-write the first 15 apps to work with this.

Minor

Bugfix: create the Postprocessing buffer immediately.

1) bugfix computing Gaussian BLUR kernel (for odd radii, the last offset was incorrectly computed)
2) introduce more advanced method of detecting BLUR halo (compute depths in a new way)

Roll back the recent MIPMAP work.