Adding clouds now will update camera clipping pane ends

As per #172, clouds are clipped by default. Now if the cloud setting is on, clipping end will be set to 1000 to match the cloud shader limit. Also made minor compatibility improvement for materialsFromObj.

MCprep_addon/util.py

@@ -66,10 +66,12 @@ def materialsFromObj(obj_list):
 		# also capture obj materials from dupliverts/instances on e.g. empties
 		if hasattr(obj, "dupli_group") and obj.dupli_group: # 2.7
 			for dup_obj in obj.dupli_group.objects:
-				obj_list.append(dup_obj)
+				if dup_obj not in obj_list:
+					obj_list.append(dup_obj)
 		elif hasattr(obj, "instance_collection") and obj.instance_collection: # 2.8
 			for dup_obj in obj.instance_collection.objects:
-				obj_list.append(dup_obj)
+				if dup_obj not in obj_list:
+					obj_list.append(dup_obj)
 		if obj.type != 'MESH':
 			continue
 		for slot in obj.material_slots:

MCprep_addon/world_tools.py

@@ -663,6 +663,11 @@ def execute(self, context):
 					mat.use_shadeless = False
 					mat.translucency = 1
 
+			# Now also increase camera render distance to see clouds
+			cams = [obj for obj in bpy.data.objects if obj.type == "CAMERA"]
+			for cam in cams:
+				cam.data.clip_end = 1000 # 1000 matches explicitly to shader
+
 		# ensure all new objects (lights, meshes, control objs) in same group
 		if "mcprep_world" in util.collections():
 			util.collections()["mcprep_world"].name = "mcprep_world_old"