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
Merge pull request #7 from yuye-liu/master

merge local areas
using clamp to set playable area
cleaned up 3d drawing code, added outline 2 pass facility to Sprite3D, but still need to write the shaders
added base bullet controller
add outline effect
Merge pull request #8 from dabingnn/fix_outline

add outline effect
optimized outline filtrate, eliminate z fighting, by using the depth buffer