diff --git a/src/core/renderers/webgl/WebGLRenderer.js b/src/core/renderers/webgl/WebGLRenderer.js
index 0802e88..30034dc 100644
--- a/src/core/renderers/webgl/WebGLRenderer.js
+++ b/src/core/renderers/webgl/WebGLRenderer.js
@@ -555,7 +555,7 @@
         this.blendModes[CONST.BLEND_MODES.NORMAL]        = [gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA];
         this.blendModes[CONST.BLEND_MODES.ADD]           = [gl.SRC_ALPHA, gl.DST_ALPHA];
         this.blendModes[CONST.BLEND_MODES.MULTIPLY]      = [gl.DST_COLOR, gl.ONE_MINUS_SRC_ALPHA];
-        this.blendModes[CONST.BLEND_MODES.SCREEN]        = [gl.SRC_ALPHA, gl.ONE];
+        this.blendModes[CONST.BLEND_MODES.SCREEN]        = [gl.SRC_ALPHA, gl.ONE_MINUS_SRC_COLOR];
         this.blendModes[CONST.BLEND_MODES.OVERLAY]       = [gl.ONE,       gl.ONE_MINUS_SRC_ALPHA];
         this.blendModes[CONST.BLEND_MODES.DARKEN]        = [gl.ONE,       gl.ONE_MINUS_SRC_ALPHA];
         this.blendModes[CONST.BLEND_MODES.LIGHTEN]       = [gl.ONE,       gl.ONE_MINUS_SRC_ALPHA];

diff --git a/src/core/renderers/webgl/WebGLRenderer.js b/src/core/renderers/webgl/WebGLRenderer.js
index 0802e88..30034dc 100644
--- a/src/core/renderers/webgl/WebGLRenderer.js
+++ b/src/core/renderers/webgl/WebGLRenderer.js
@@ -555,7 +555,7 @@
         this.blendModes[CONST.BLEND_MODES.NORMAL]        = [gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA];
         this.blendModes[CONST.BLEND_MODES.ADD]           = [gl.SRC_ALPHA, gl.DST_ALPHA];
         this.blendModes[CONST.BLEND_MODES.MULTIPLY]      = [gl.DST_COLOR, gl.ONE_MINUS_SRC_ALPHA];
-        this.blendModes[CONST.BLEND_MODES.SCREEN]        = [gl.SRC_ALPHA, gl.ONE];
+        this.blendModes[CONST.BLEND_MODES.SCREEN]        = [gl.SRC_ALPHA, gl.ONE_MINUS_SRC_COLOR];
         this.blendModes[CONST.BLEND_MODES.OVERLAY]       = [gl.ONE,       gl.ONE_MINUS_SRC_ALPHA];
         this.blendModes[CONST.BLEND_MODES.DARKEN]        = [gl.ONE,       gl.ONE_MINUS_SRC_ALPHA];
         this.blendModes[CONST.BLEND_MODES.LIGHTEN]       = [gl.ONE,       gl.ONE_MINUS_SRC_ALPHA];
diff --git a/src/core/renderers/webgl/managers/BlendModeManager.js b/src/core/renderers/webgl/managers/BlendModeManager.js
index a928031..b6eb6e1 100644
--- a/src/core/renderers/webgl/managers/BlendModeManager.js
+++ b/src/core/renderers/webgl/managers/BlendModeManager.js
@@ -29,11 +29,11 @@
  */
 BlendModeManager.prototype.setBlendMode = function (blendMode, isSourcePremultiplied)
 {
-    if (typeof isSourcePremultiplied === "undefined") {
+    if (typeof isSourcePremultiplied === 'undefined') {
         isSourcePremultiplied = true;
     }
     if (this.currentBlendMode === blendMode &&
-        this.currentSourcePremultiplied == isSourcePremultiplied)
+        this.currentSourcePremultiplied === isSourcePremultiplied)
     {
         return false;
     }
@@ -43,9 +43,11 @@
 
     var mode = this.renderer.blendModes[this.currentBlendMode];
     var gl = this.renderer.gl;
-    if (isSourcePremultiplied && mode[0] == gl.SRC_ALPHA)
+    if (isSourcePremultiplied && mode[0] === gl.SRC_ALPHA) {
         gl.blendFunc(gl.ONE, mode[1]);
-    else
+    }
+    else {
         gl.blendFunc(mode[0], mode[1]);
+    }
     return true;
 };