libraryexamples
This commit (and reading the OpenGL ES 3.0 spec) pretty conclusively proves that, sadly, Nexus 4's Transform Feedback implementation is incomplete (doesn't work with GL_TRIANGLES primitiveMode)
Progress with TransferFeedback app - introduce two modes: USEPOINTS 'true' or 'false'.
On Nexus5X, it works with 'true' and 'false'. On Nexus 4, it works with 'true', but returns GL_INVALID_OPERATION with 'false'.
Progress with moving the Transform Feedback functionality from the APP to the library.
Simplifications.
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.
Preliminary support for MIPMAP levels of the postprocessing buffers. (doesn't work yet)
Merging blurred surfaces mostly ok now (blurred image still appears a bit shifted down for some reason)
Simplify shaders.
Make it more flexible; now it can run almost all apps on OpenGL 2.0 contexts; OpenGL 3.0 ( with GLSL 3.00) required for POSTPROCESSING.
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