Added shadow casting for SkinnedMeshes.

src/extras/renderers/plugins/ShadowMapPlugin.js

@@ -6,7 +6,7 @@ THREE.ShadowMapPlugin = function ( ) {
 
 	var _gl,
 	_renderer,
-	_depthMaterial, _depthMaterialMorph,
+	_depthMaterial, _depthMaterialMorph, _depthMaterialSkin,
 
 	_frustum = new THREE.Frustum(),
 	_projScreenMatrix = new THREE.Matrix4(),
@@ -24,9 +24,11 @@ THREE.ShadowMapPlugin = function ( ) {
 
 		_depthMaterial = new THREE.ShaderMaterial( { fragmentShader: depthShader.fragmentShader, vertexShader: depthShader.vertexShader, uniforms: depthUniforms } );
 		_depthMaterialMorph = new THREE.ShaderMaterial( { fragmentShader: depthShader.fragmentShader, vertexShader: depthShader.vertexShader, uniforms: depthUniforms, morphTargets: true } );
+		_depthMaterialSkin = new THREE.ShaderMaterial( { fragmentShader: depthShader.fragmentShader, vertexShader: depthShader.vertexShader, uniforms: depthUniforms, skinning: true } );
 
 		_depthMaterial._shadowPass = true;
 		_depthMaterialMorph._shadowPass = true;
+		_depthMaterialSkin._shadowPass = true;
 
 	};
 
@@ -267,6 +269,10 @@ THREE.ShadowMapPlugin = function ( ) {
 
 						material = _depthMaterialMorph;
 
+					} else if ( object instanceof THREE.SkinnedMesh ) {
+
+						material = _depthMaterialSkin;
+
 					} else {
 
 						material = _depthMaterial;

src/renderers/WebGLShaders.js

@@ -1930,12 +1930,14 @@ THREE.ShaderLib = {
 
 		vertexShader: [
 
+			THREE.ShaderChunk[ "skinning_pars_vertex" ],
 			THREE.ShaderChunk[ "morphtarget_pars_vertex" ],
 
 			"void main() {",
 
 				"vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );",
 
+				THREE.ShaderChunk[ "skinning_vertex" ],
 				THREE.ShaderChunk[ "morphtarget_vertex" ],
 				THREE.ShaderChunk[ "default_vertex" ],