added params for ring emitter
work in progress ring emitter
Merge branch 'refs/heads/develop' into particle_render

Conflicts:
	RGBDVisualize/RGBDVisualize.xcodeproj/project.pbxproj
	RGBDVisualize/src/testApp.cpp
	RGBDVisualize/src/testApp.h
added spark
depth particle early test
depth particle test
simple combined video exporter
added details export
scanline renderer
sin oscillators
near clip added to shader and background colors
translation/rotation mix
freeze frame saving
noise stuff
lots of new rendering features
point size and texture stretching
point size can disappear again
expanded frame width and height
Merge remote-tracking branch 'origin/develop' into particle_render

Conflicts:
	RGBDVisualize/RGBDVisualize.xcodeproj/project.pbxproj
	RGBDVisualize/src/testApp.cpp
	RGBDVisualize/src/testApp.h
relighting