From e38864abb117aeaa90d06b44458022e9600bfeed Mon Sep 17 00:00:00 2001
From: z2045217 <386957065@qq.com>
Date: Wed, 14 Dec 2016 14:29:18 +0800
Subject: [PATCH] Improve beauty filter shader (#267)

---
 library/src/main/res/raw/beauty.glsl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/library/src/main/res/raw/beauty.glsl b/library/src/main/res/raw/beauty.glsl
index 50b5186..1a32a63 100644
--- a/library/src/main/res/raw/beauty.glsl
+++ b/library/src/main/res/raw/beauty.glsl
@@ -7,7 +7,7 @@ uniform vec2 singleStepOffset;
 
 varying vec2 textureCoordinate;
 
-const vec4 params = vec4(0.33, 0.63, 0.4, 0.35);
+const vec4 params = vec4(0.748, 0.874, 0.241, 0.241);
 const vec3 W = vec3(0.299,0.587,0.114);
 const mat3 saturateMatrix = mat3(
                                 1.1102,-0.0598,-0.061,
@@ -106,4 +106,6 @@ void main() {
 
     vec3 satColor = gl_FragColor.rgb * saturateMatrix;
     gl_FragColor.rgb = mix(gl_FragColor.rgb, satColor, params.a);
+
+    gl_FragColor.rgb = vec3(gl_FragColor.rgb + vec3(-0.096));
 }
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