4 Commits

Author	SHA1	Message	Date
ztenghui	7940dc57e3	Shoot the rays to the vertices of the incoming polygon. ... bug:13553955 Change-Id: I4825a49e8eaab969c40f2ee4086f7669c9c6fd29	2014-04-24 09:53:20 -07:00
ztenghui	50ecf849cb	Create one hole inside the umbra area to avoid overdraw. ... bug:13439450 Change-Id: I859575196bd5a3029f447883025a6ec3a1f1face	2014-03-17 10:10:02 -07:00
ztenghui	63d41abb40	Use pre-computed index to draw the shadow. ... Also draw the umbra part as triangle fans instead of zig zag fashion. b/12840179 Change-Id: Iaa5d15e77351acdd71f076bd8f9bb2d4d2b92faf	2014-02-25 14:18:25 -08:00
ztenghui	55bfb4e728	Calculate and show Ambient shadow. ... Basically we compute the shadow as a strip of triangles, whose alpha value is the strength of the shadow. We use the normal to extend the geometry. And we use static function and try to avoid new/malloc in the computation. Change-Id: I382286f1cad351bd5ff983f76f446c075819dcaf	2013-12-13 17:25:47 -08:00