ztenghui
50ecf849cb
Create one hole inside the umbra area to avoid overdraw.
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bug:13439450
Change-Id: I859575196bd5a3029f447883025a6ec3a1f1face
2014-03-17 10:10:02 -07:00
Chris Craik
726118b352
Improve shadow tessellation performance
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- Tune and simplify shadow parameters
- Remove additional inner rings
- Improve polygon ray casting algorithm
Change-Id: If0f28b2d66ae0480b675942bb65e8fcd2864425d
2014-03-11 15:23:36 -07:00
ztenghui
63d41abb40
Use pre-computed index to draw the shadow.
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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
Chris Craik
564acf7c9b
Fix Clang warnings/errors
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Fix several build warnings (struct != class, int != size_t) and errors
(variable leng non-POD arrays).
Change-Id: I70b4e784365514303d8954bfcb1f39d7c22c1321
2014-01-02 16:52:32 -08:00
ztenghui
55bfb4e728
Calculate and show Ambient shadow.
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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
