added a 40s timeout on frame analisys

0.5.7

- added: timeout on scene plit and autocrop border to avoid freezing blender
- ui: minor correction

CHANGELOG.md

@@ -14,6 +14,11 @@ Activate / deactivate layer opaticty according to prefix
 Activate / deactivate all masks using MA layers
 -->
 
+0.5.7
+
+- added: timeout on scene plit and autocrop border to avoid freezing blender
+- ui: minor correction
+
 0.5.6
 
 - feat: `check layers` new `clear frame out of range` option (Disabled by default)

OP_add_layer.py

@@ -93,7 +93,7 @@ class GPEXP_OT_add_objects_to_render(bpy.types.Operator):
 class GPEXP_OT_split_to_scene(bpy.types.Operator):
     bl_idname = "gp.split_to_scene"
     bl_label = "Split Objects To Scene"
-    bl_description = "Take selected objects and send them to separate scene"
+    bl_description = "Take selected objects and send them to separate scene\n(new scene is named after active object)"
     bl_options = {"REGISTER"}
 
     @classmethod
@@ -103,7 +103,10 @@ class GPEXP_OT_split_to_scene(bpy.types.Operator):
     mode : bpy.props.StringProperty(default='ALL', options={'SKIP_SAVE'})
 
     def execute(self, context):
-        fn.split_object_to_scene()
+        err = fn.split_object_to_scene()
+        if err:
+            self.report({'ERROR'}, err)
+            return {"CANCELLED"}
         return {"FINISHED"}
 
 

OP_crop_to_object.py

@@ -13,7 +13,11 @@ class GPEXP_OT_set_crop_from_selection(bpy.types.Operator):
 
     def execute(self, context):
         scn = context.scene
-        fn.set_box_from_selected_objects(scn=scn, cam=scn.camera)
+        err = fn.set_box_from_selected_objects(scn=scn, cam=scn.camera)
+        if err:
+            self.report({'ERROR'}, err)
+            return {"CANCELLED"}
+
         scn.render.use_border = True
         scn.render.use_crop_to_border = True
         return {"FINISHED"}

__init__.py

@@ -2,7 +2,7 @@ bl_info = {
     "name": "GP Render",
     "description": "Organise export of gp layers through compositor output",
     "author": "Samuel Bernou",
-    "version": (0, 5, 6),
+    "version": (0, 5, 7),
     "blender": (2, 93, 0),
     "location": "View3D",
     "warning": "",

fn.py

@@ -803,7 +803,10 @@ def export_crop_to_json():
     return coord_dic
 
 def set_border_region_from_coord(coords, scn=None, margin=30, export_json=True):
-    '''Get a list of point coord in worldcamera view space (0 to 1) on each axis'''
+    '''Get a list of point coord in worldcamera view space (0 to 1) on each axis
+    set border (of passed scene :scn: ) with given coordinate
+    return the coords list as pixel coordinate
+    '''
 
     scn = scn or bpy.context.scene
     
@@ -883,14 +886,16 @@ def has_anim(ob):
     # TODO make a better check (check if there is only one key in each channel, count as not animated)
     return ob.animation_data and ob.animation_data.action
 
-def get_gp_box_all_frame_selection(oblist=None, scn=None, cam=None):
+def get_gp_box_all_frame_selection(oblist=None, scn=None, cam=None, timeout=40):
     '''
     get points of all selection
     return 2d bbox in pixels 
+    return None if timeout (too long to process, better to do it visually)
     '''
 
     from bpy_extras.object_utils import world_to_camera_view
 
+    t0 = time()
     coords_cam_list = []
     scn = scn or bpy.context.scene
     oblist = oblist or [o for o in scn.objects if o.select_get()]
@@ -912,6 +917,10 @@ def get_gp_box_all_frame_selection(oblist=None, scn=None, cam=None):
                         if len(s.points) == 1: # skip isolated points
                             continue
                         coords_cam_list += [world_to_camera_view(scn, cam, ob.matrix_world @ p.co) for p in s.points]
+                    
+                if time() - t0 > timeout:
+                    print(f'timeout (more than {timeout}s to calculate) evaluating frame position of objects {oblist}')
+                    return
     else:
         print(f'No anim')
         for ob in oblist:
@@ -920,12 +929,16 @@ def get_gp_box_all_frame_selection(oblist=None, scn=None, cam=None):
                 if l.hide or l.opacity == 0.0:
                     continue
                 for f in l.frames:
+                    if time() - t0 > timeout:
+                        print(f'timeout (more than {timeout}s to calculate) evaluating frame position of objects {oblist}')
+                        return
                     if not (scn.frame_start <= f.frame_number <= scn.frame_end):
                         continue
                     for s in f.strokes:
                         if len(s.points) == 1: # skip isolated points
                             continue
                         coords_cam_list += [world_to_camera_view(scn, cam, ob.matrix_world @ p.co) for p in s.points]
+                
     
     print(f'{len(coords_cam_list)} gp points listed {time() - start:.1f}s')
     return coords_cam_list
@@ -954,6 +967,9 @@ def set_box_from_selected_objects(scn=None, cam=None, export_json=False):
     
     selection = [o for o in scn.objects if o.select_get()] # selected_objects
     coords = get_gp_box_all_frame_selection(oblist=selection, scn=scn, cam=cam)
+    if not coords:
+        return f'Border not set: Timeout during analysis of {len(selection)} objects'
+
     _bbox_px = set_border_region_from_coord(coords, margin=30, scn=scn, export_json=export_json)
 
 
@@ -1032,6 +1048,8 @@ def split_object_to_scene():
     # border to GP objects of the scene
     gp_objs = [o for o in new.objects if o.type == 'GPENCIL']
     coords = get_gp_box_all_frame_selection(oblist=gp_objs, scn=new, cam=new.camera)
+    if not coords:
+        return f'Scene "{scene_name}" created. But Border was not set (Timeout during GP analysis), should be done by hand if needed then use export crop to json'
     set_border_region_from_coord(coords, margin=30, scn=new, export_json=True)
 
     export_crop_to_json()

ui.py

@@ -130,10 +130,10 @@ class GPEXP_PT_gp_node_ui(Panel):
 
         layout.separator()
         layout.label(text='Sub Scenes:')
-        layout.operator('gp.split_to_scene', icon='DUPLICATE', text='Split To Scene')
+        layout.operator('gp.split_to_scene', icon='DUPLICATE', text='Split Selected Obj To Scene')
 
         row = layout.row(align=True)
-        row.operator('gp.set_crop_from_selection', icon='CON_OBJECTSOLVER', text='Set Crop')
+        row.operator('gp.set_crop_from_selection', icon='CON_OBJECTSOLVER', text='Autoset Crop')
         row.operator('gp.export_crop_coord_to_json', icon='FILE', text='Export json')
 
         layout.operator('gp.render_all_scenes', icon='RENDER_ANIMATION', text='Render All Sub-Scene')