Update sun size with time
Add moon position
Add uMoonPos uniform
Add a white moon
Add loading of moon texture
Add uMoonTex uniform and moon texture binding
Add RGBtoHSL() function in skybox shaders
Add moon rendering
Merge branch 'chunked_display' of https://github.com/Jijidici/Hydro-Gene_IMAC2014 into chunked_display
Merge branch 'moon' into chunked_display
Merge branch 'chunked_display' of https://github.com/Jijidici/Hydro-Gene_IMAC2014 into chunked_display
Fix bug on moon displaying
Update geometry shaders