Fixed incorrect shadow receiving for morphs.

examples/webgl_shadowmap.html

@@ -266,7 +266,7 @@
 					meshAnim.rotation.y = Math.PI/2;
 
 					meshAnim.castShadow = true;
-					meshAnim.receiveShadow = false;
+					meshAnim.receiveShadow = true;
 
 					scene.add( meshAnim );
 

src/renderers/WebGLShaders.js

@@ -899,7 +899,11 @@ THREE.ShaderChunk = {
 
 			"for( int i = 0; i < MAX_SHADOWS; i ++ ) {",
 
-				"vShadowCoord[ i ] = shadowMatrix[ i ] * objectMatrix * vec4( position, 1.0 );",
+				"#ifdef USE_MORPHTARGETS",
+					"vShadowCoord[ i ] = shadowMatrix[ i ] * objectMatrix * vec4( morphed, 1.0 );",
+				"#else",
+					"vShadowCoord[ i ] = shadowMatrix[ i ] * objectMatrix * vec4( position, 1.0 );",
+				"#endif",
 
 			"}",