From 8def74de33b197c0c5ec8774576b1d71c7ec4f1b Mon Sep 17 00:00:00 2001
From: ztenghui <ztenghui@google.com>
Date: Wed, 1 Oct 2014 16:10:16 -0700
Subject: [PATCH] + correcting shadow visual appearance (b/17610926)

+ adjusting spot and ambient shadow opacity constants to achieve desired appearance
+ reducing ambient scale ratio back to 1.0 to address over-lightening at higher elevations
+ partially revert ag/546290

Change-Id: I9d7f664f73a7b9b83df73b739103c97054bd4f6e
---
 core/res/res/values/dimens.xml  | 4 ++--
 libs/hwui/ShadowTessellator.cpp | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/core/res/res/values/dimens.xml b/core/res/res/values/dimens.xml
index 824ed9efb6771..26d313371ae1a 100644
--- a/core/res/res/values/dimens.xml
+++ b/core/res/res/values/dimens.xml
@@ -412,7 +412,7 @@
      <dimen name="light_y">-200dp</dimen>
      <dimen name="light_z">800dp</dimen>
      <dimen name="light_radius">800dp</dimen>
-     <item type="dimen" format="float" name="ambient_shadow_alpha">0.047</item>
-     <item type="dimen" format="float" name="spot_shadow_alpha">0.098</item>
+     <item type="dimen" format="float" name="ambient_shadow_alpha">0.075</item>
+     <item type="dimen" format="float" name="spot_shadow_alpha">0.15</item>
 
 </resources>
diff --git a/libs/hwui/ShadowTessellator.cpp b/libs/hwui/ShadowTessellator.cpp
index 35cc7a4fd69dd..c1ffa0ab4807f 100644
--- a/libs/hwui/ShadowTessellator.cpp
+++ b/libs/hwui/ShadowTessellator.cpp
@@ -37,7 +37,7 @@ void ShadowTessellator::tessellateAmbientShadow(bool isCasterOpaque,
 
     // A bunch of parameters to tweak the shadow.
     // TODO: Allow some of these changable by debug settings or APIs.
-    float heightFactor = 1.0f / 86;
+    float heightFactor = 1.0f / 128;
     const float geomFactor = 64;
 
     Caches& caches = Caches::getInstance();