Initial commit of PickingPBO sample.
Added xcode proj files.
Updated to work with a single draw call.
xcode proj fixed for shaders.
Tabs alignment fix.
Merge branch 'glNext_pickingPbo' of https://github.com/clinthidinger/Cinder into glNext_pickingPbo
Merge branch 'glNext' into glNext_pickingPbo
Merge branch 'glNext_pickingPbo' of github.com:clinthidinger/Cinder into clinthidinger-glNext_pickingPbo
Adding gl::pointSize()
Adding gl::readBuffer() and gl::readPixels()
PickingPBO: Minor formatting tweaks, using new convenience methods
PickingPBO: switched grid to VertBatch
Wrapping gl::readBuffer() in ES preprocessor directive
Refactoring geom::Rect to wrap ci::Rectf
PickingPBO: updating setupGradient() to use geom::Rect
PickingPBO: simplifying params a bit
Adding fragment data location support on GlslProg
PickingPBO: removing dependency on GL 3.3 by using fragDataLocation
PickingPBO: simplifying vote counting logic
Adding Fbo::readPixels8u()