diff --git a/examples/js/postprocessing/ManualMSAARenderPass.js b/examples/js/postprocessing/ManualMSAARenderPass.js
index 81408dd534448d..a9f1fb9e936bde 100644
--- a/examples/js/postprocessing/ManualMSAARenderPass.js
+++ b/examples/js/postprocessing/ManualMSAARenderPass.js
@@ -22,7 +22,7 @@ THREE.ManualMSAARenderPass = function ( scene, camera, clearColor, clearAlpha )
 
 	// as we need to clear the buffer in this pass, clearColor must be set to something, defaults to black.
 	this.clearColor = ( clearColor !== undefined ) ? clearColor : 0x000000;
-	this.clearAlpha = ( clearAlpha !== undefined ) ? clearAlpha : 1;
+	this.clearAlpha = ( clearAlpha !== undefined ) ? clearAlpha : 0;
 
 	if ( THREE.CopyShader === undefined ) console.error( "THREE.ManualMSAARenderPass relies on THREE.CopyShader" );
 
@@ -82,7 +82,8 @@ THREE.ManualMSAARenderPass.prototype = Object.assign( Object.create( THREE.Pass.
 		var autoClear = renderer.autoClear;
 		renderer.autoClear = false;
 
-		var oldClearColorHex = renderer.getClearColor().getHex(), oldClearAlpha = renderer.getClearAlpha();
+		var oldClearColor = renderer.getClearColor().getHex();
+		var oldClearAlpha = renderer.getClearAlpha();
 
 		var baseSampleWeight = 1.0 / jitterOffsets.length;
 		var roundingRange = 1 / 32;
@@ -122,7 +123,8 @@ THREE.ManualMSAARenderPass.prototype = Object.assign( Object.create( THREE.Pass.
 		if ( this.camera.clearViewOffset ) this.camera.clearViewOffset();
 
 		renderer.autoClear = autoClear;
-		renderer.setClearColor( oldClearColorHex, oldClearAlpha );
+		renderer.setClearColor( oldClearColor, oldClearAlpha );
+
 	}
 
 } );
diff --git a/examples/js/postprocessing/RenderPass.js b/examples/js/postprocessing/RenderPass.js
index d704ec21a09954..4e4edc0d41fbda 100644
--- a/examples/js/postprocessing/RenderPass.js
+++ b/examples/js/postprocessing/RenderPass.js
@@ -12,7 +12,7 @@ THREE.RenderPass = function ( scene, camera, overrideMaterial, clearColor, clear
 	this.overrideMaterial = overrideMaterial;
 
 	this.clearColor = clearColor;
-	this.clearAlpha = ( clearAlpha !== undefined ) ? clearAlpha : 1;
+	this.clearAlpha = ( clearAlpha !== undefined ) ? clearAlpha : 0;
 
 	this.clear = true;
 	this.needsSwap = false;
@@ -27,10 +27,12 @@ THREE.RenderPass.prototype = Object.assign( Object.create( THREE.Pass.prototype
 
 		this.scene.overrideMaterial = this.overrideMaterial;
 
+		var oldClearColor, oldClearAlpha;
+
 		if ( this.clearColor ) {
 
-			var oldClearColorHex = renderer.getClearColor();
-			var oldClearAlpha = renderer.getClearAlpha();
+			oldClearColor = renderer.getClearColor().getHex();
+			oldClearAlpha = renderer.getClearAlpha();
 
 			renderer.setClearColor( this.clearColor, this.clearAlpha );
 
@@ -40,7 +42,7 @@ THREE.RenderPass.prototype = Object.assign( Object.create( THREE.Pass.prototype
 
 		if ( this.clearColor ) {
 
-			renderer.setClearColor( oldClearColorHex, oldClearAlpha );
+			renderer.setClearColor( oldClearColor, oldClearAlpha );
 
 		}
 
diff --git a/src/renderers/webgl/WebGLProgram.js b/src/renderers/webgl/WebGLProgram.js
index d0bc92f314319e..c5f9348b3df082 100644
--- a/src/renderers/webgl/WebGLProgram.js
+++ b/src/renderers/webgl/WebGLProgram.js
@@ -284,7 +284,7 @@ THREE.WebGLProgram = ( function () {
 
 			prefixVertex = [
 
-				'#define SHADER_NAME ' + material.__webglShader.name,
+				'#define SHADER_NAME RawShaderMaterial',
 
 				customDefines
 
@@ -292,7 +292,7 @@ THREE.WebGLProgram = ( function () {
 
 			prefixFragment = [
 
-				'#define SHADER_NAME ' + material.__webglShader.name,
+				'#define SHADER_NAME RawShaderMaterial',
 
 				customDefines