Blender better defense coding for problem models

- fixes absolutely nothing, except that .blend with unknown skeleton
problems should generate .babylon files, ignoring the skeleton.
Previously only generated a log file with error stack.

Exporters/Blender/src/babylon-js/__init__.py

@@ -1,7 +1,7 @@
 bl_info = {
     'name': 'Babylon.js',
     'author': 'David Catuhe, Jeff Palmer',
-    'version': (5, 4, 0),
+    'version': (5, 4, 1),
     'blender': (2, 76, 0),
     'location': 'File > Export > Babylon.js (.babylon)',
     'description': 'Export Babylon.js scenes (.babylon)',

Exporters/Blender/src/babylon-js/mesh.py

@@ -58,17 +58,21 @@ class Mesh(FCurveAnimatable):
         if len(object.vertex_groups) > 0 and not object.data.ignoreSkeleton:
             objArmature = object.find_armature()
             if objArmature != None:
-                hasSkeleton = True
                 # used to get bone index, since could be skipping IK bones
                 skeleton = exporter.get_skeleton(objArmature.name)
-                i = 0
-                for obj in scene.objects:
-                    if obj.type == "ARMATURE":
-                        if obj == objArmature:
-                            self.skeletonId = i
-                            break
-                        else:
-                            i += 1
+                hasSkeleton = skeleton is not None
+                
+                if not hasSkeleton:
+                    Logger.warn('No skeleton with name "' + objArmature.name + '" found skeleton ignored.')
+                else:
+                    i = 0
+                    for obj in scene.objects:
+                        if obj.type == "ARMATURE":
+                            if obj == objArmature:
+                                self.skeletonId = i
+                                break
+                            else:
+                                i += 1
 
         # determine Position, rotation, & scaling
         if forcedParent is None:
@@ -627,7 +631,7 @@ class Mesh(FCurveAnimatable):
             write_float(file_handler, 'physicsRestitution', self.physicsRestitution)
 
         # Geometry
-        if hasattr(self, 'skeletonId'):
+        if self.hasSkeleton:
             write_int(file_handler, 'skeletonId', self.skeletonId)
             write_int(file_handler, 'numBoneInfluencers', self.numBoneInfluencers)
 

Tools/Gulp/gulpfile.js

@@ -513,7 +513,7 @@ gulp.task('run', ['watch', 'webserver'], function () {
 
 gulp.task("zip-blender", function () {
     return gulp.src('../../Exporters/Blender/src/**')
-        .pipe(zip('Blender2Babylon-5.3.zip'))
+        .pipe(zip('Blender2Babylon-5.4.zip'))
         .pipe(gulp.dest('../../Exporters/Blender'));
 });