diff --git a/src/core/graphics/Graphics.js b/src/core/graphics/Graphics.js
index 92f3cea..6b31e6e 100644
--- a/src/core/graphics/Graphics.js
+++ b/src/core/graphics/Graphics.js
@@ -755,6 +755,7 @@
         this._spriteRect.tint = this.graphicsData[0].fillColor;
     }
     
+    this._spriteRect.worldAlpha = this.worldAlpha;
     Graphics._SPRITE_TEXTURE.crop.width = rect.width;
     Graphics._SPRITE_TEXTURE.crop.height = rect.height;
 

diff --git a/src/core/graphics/Graphics.js b/src/core/graphics/Graphics.js
index 92f3cea..6b31e6e 100644
--- a/src/core/graphics/Graphics.js
+++ b/src/core/graphics/Graphics.js
@@ -755,6 +755,7 @@
         this._spriteRect.tint = this.graphicsData[0].fillColor;
     }
     
+    this._spriteRect.worldAlpha = this.worldAlpha;
     Graphics._SPRITE_TEXTURE.crop.width = rect.width;
     Graphics._SPRITE_TEXTURE.crop.height = rect.height;
 
diff --git a/src/core/graphics/webgl/shaders/PrimitiveShader.js b/src/core/graphics/webgl/shaders/PrimitiveShader.js
index 44166b3..9a1a043 100644
--- a/src/core/graphics/webgl/shaders/PrimitiveShader.js
+++ b/src/core/graphics/webgl/shaders/PrimitiveShader.js
@@ -21,7 +21,6 @@
             'uniform mat3 projectionMatrix;',
 
             'uniform float alpha;',
-            'uniform float flipY;',
             'uniform vec3 tint;',
 
             'varying vec4 vColor;',