From 25e5a02d1cbbaa8352be314c45f9cf3599a8f30e Mon Sep 17 00:00:00 2001
From: ztenghui <ztenghui@google.com>
Date: Thu, 11 Sep 2014 09:57:19 -0700
Subject: [PATCH] Finer tessellation can draw better looking shadows for
 circles.

b/14976551

Change-Id: I4b9e320b025dbee37cd1893881ddbaad62e3a6e2
---
 libs/hwui/TessellationCache.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/hwui/TessellationCache.cpp b/libs/hwui/TessellationCache.cpp
index 9e62f364809ab..1e38f9e9e615f 100644
--- a/libs/hwui/TessellationCache.cpp
+++ b/libs/hwui/TessellationCache.cpp
@@ -216,7 +216,7 @@ static void tessellateShadows(
 
     // tessellate caster outline into a 2d polygon
     Vector<Vertex> casterVertices2d;
-    const float casterRefinementThresholdSquared = 20.0f; // TODO: experiment with this value
+    const float casterRefinementThresholdSquared = 4.0f;
     PathTessellator::approximatePathOutlineVertices(*casterPerimeter,
             casterRefinementThresholdSquared, casterVertices2d);
     if (!ShadowTessellator::isClockwisePath(*casterPerimeter)) {