Add code from Florent (normals)
Merge branch 'master' of github.com:geenux/algogeom
Fix compute shader's buffer retrieval
Use vec3
Almost there, need barriers
Fix padding
remove article
ma scene
Merge branch 'master' of github.com:geenux/algogeom
Basic opencl
Use vec3
Algo set up on GPU. Need to correct coordinate (negative)
normal + cpu gauss sphere
Merge branch 'master' of github.com:geenux/algogeom

Conflicts:
	CMakeLists.txt
Merge branch 'master' of github.com:geenux/algogeom

Conflicts:
	CMakeLists.txt
	DOC.md
	lib/cgengine/src/abstractshader.hpp
	lib/cgengine/src/computeshader.hpp
	normals/cloud_segmentation.h
	shader/gen_sampler_sphere.cs
	src/Utils.cpp
	src/Utils.h
	src/glviewer.cpp