hacking on voxel geometry shader
rearranged menus, some hacking on voxel shader
menu cleanup, support for on the fly switching of maxVoxels and useVoxelShader
style fixes
style fixes
removed some dead code
style cleanup
style cleanup
fix comment
fix projection between shaders
fix comments in shaders
Merge pull request #983 from ey6es/atropine

Pupil dilation controlled by slider in preferences.
Merge pull request #984 from ZappoMan/voxel_geo_shader

Voxel Geometry Shader Experiment