drgreen/android_frameworks_base
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Author SHA1 Message Date
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