WebGLRenderer: .visible handling robustness. See #6582.

src/renderers/WebGLRenderer.js

@@ -1572,7 +1572,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 			var webglObject = objects.objectsImmediate[ i ];
 			var object = webglObject.object;
 
-			if ( object.visible ) {
+			if ( object.visible === true ) {
 
 				setupMatrices( object, camera );
 
@@ -1645,59 +1645,61 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 	function projectObject( object ) {
 
-		if ( object.visible === false ) return;
+		if ( object.visible === true ) {
 
-		if ( object instanceof THREE.Scene || object instanceof THREE.Group ) {
+			if ( object instanceof THREE.Scene || object instanceof THREE.Group ) {
 
-			// skip
+				// skip
 
-		} else {
+			} else {
 
-			// update Skeleton objects
-			if ( object instanceof THREE.SkinnedMesh ) {
+				// update Skeleton objects
+				if ( object instanceof THREE.SkinnedMesh ) {
 
-				object.skeleton.update();
+					object.skeleton.update();
 
-			}
+				}
 
-			objects.init( object );
+				objects.init( object );
 
-			if ( object instanceof THREE.Light ) {
+				if ( object instanceof THREE.Light ) {
 
-				lights.push( object );
+					lights.push( object );
 
-			} else if ( object instanceof THREE.Sprite ) {
+				} else if ( object instanceof THREE.Sprite ) {
 
-				sprites.push( object );
+					sprites.push( object );
 
-			} else if ( object instanceof THREE.LensFlare ) {
+				} else if ( object instanceof THREE.LensFlare ) {
 
-				lensFlares.push( object );
+					lensFlares.push( object );
 
-			} else {
+				} else {
 
-				var webglObject = objects.objects[ object.id ];
+					var webglObject = objects.objects[ object.id ];
 
-				if ( webglObject && ( object.frustumCulled === false || _frustum.intersectsObject( object ) === true ) ) {
+					if ( webglObject && ( object.frustumCulled === false || _frustum.intersectsObject( object ) === true ) ) {
 
-					var material = object.material;
+						var material = object.material;
 
-					if ( material.transparent ) {
+						if ( material.transparent ) {
 
-						transparentObjects.push( webglObject );
+							transparentObjects.push( webglObject );
 
-					} else {
+						} else {
 
-						opaqueObjects.push( webglObject );
+							opaqueObjects.push( webglObject );
 
-					}
+						}
 
-					if ( _this.sortObjects === true ) {
+						if ( _this.sortObjects === true ) {
 
-						_vector3.setFromMatrixPosition( object.matrixWorld );
-						_vector3.applyProjection( _projScreenMatrix );
+							_vector3.setFromMatrixPosition( object.matrixWorld );
+							_vector3.applyProjection( _projScreenMatrix );
 
-						webglObject.z = _vector3.z;
+							webglObject.z = _vector3.z;
+
+						}
 
 					}
 
@@ -1705,11 +1707,11 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 			}
 
-		}
+			for ( var i = 0, l = object.children.length; i < l; i ++ ) {
 
-		for ( var i = 0, l = object.children.length; i < l; i ++ ) {
+				projectObject( object.children[ i ] );
 
-			projectObject( object.children[ i ] );
+			}
 
 		}
 
@@ -1757,7 +1759,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 			var webglObject = renderList[ i ];
 			var object = webglObject.object;
 
-			if ( object.visible ) {
+			if ( object.visible === true ) {
 
 				if ( overrideMaterial ) {