Distorted Android

Beginnings of the 'Multiblur' app.

Separable Gaussian Blur with linear sampling done.

Linear sampling implemented - i.e. blurring by a (2N+1)x(2N+1) gaussian kernel (centeral pixel + N pixels in each direction) requires exactly 2N + (N%2==1 ? 4:2) texture fetches.

Separable Box blur (almost) works.

Correct a bug in Effects3D.

Try using OpenGL ES 3.0 everywhere (but if device does not support it, try creating 2.0 context - this is important because of the emulator!)

Improvements for the 'Cubes' and 'Effects3D' apps.

Small bugfix

improve Postprocessing; new icon; minor things.

Postprocessing effects: remove support for Center

Correct 'Deform'