support for shadowMapCullFace 'None' and 'Both'

gistfile1.diff

--- build/three.js	2013-04-29 12:12:34.237944000 +0200
+++ /home/lmg/js/three.js	2013-04-29 13:00:24.276532000 +0200
@@ -35281,18 +35281,14 @@
 		_gl.clearColor( 1, 1, 1, 1 );
 		_gl.disable( _gl.BLEND );
 
-		_gl.enable( _gl.CULL_FACE );
-		_gl.frontFace( _gl.CCW );
-
-		if ( _renderer.shadowMapCullFace === THREE.CullFaceFront ) {
 
-			_gl.cullFace( _gl.FRONT );
-
-		} else {
-
-			_gl.cullFace( _gl.BACK );
-
-		}
+		// save current values of both cull and front face - for restoring later
+		//  since these are not saved in the renderer yet, locals with default values are used.
+		//      ideally they'd get saved inside setFaceCulling()
+		//      and setDefaultGLState() would also call it instead of directly setting _gl values
+		var _oldFrontFace = THREE.FrontFaceDirectionCCW;
+		var _oldCullFace = THREE.CullFaceBack;
+		_renderer.setFaceCulling(_renderer.shadowMapCullFace, THREE.FrontFaceDirectionCCW);
 
 		_renderer.setDepthTest( true );
 
@@ -35559,12 +35555,7 @@
 		_gl.clearColor( clearColor.r, clearColor.g, clearColor.b, clearAlpha );
 		_gl.enable( _gl.BLEND );
 
-		if ( _renderer.shadowMapCullFace === THREE.CullFaceFront ) {
-
-			_gl.cullFace( _gl.BACK );
-
-		}
-
+		_renderer.setFaceCulling(_oldCullFace, _oldFrontFace);
 	};
 
 	function createVirtualLight( light, cascade ) {