Merge pull request #5 from yuye-liu/master

located areas
fix vertex UVW reading, W discard
Merge pull request #6 from dabingnn/fix_TextureUVWReading

fix vertex UVW reading, W discard
tweak around with shader, testing face culling
Merge branch 'master' of https://github.com/Wu-Hao/Moon3D
local area
Merge branch 'master' of https://github.com/Wu-Hao/Moon3D