Add more default prefix for mask layer exclusion

1.8.3

- changed: for layer with 0 opacity, do not send to render and keep opacity
- removed: `GP` prefix exclusion to send GP to render
- added: more default prefix exclusion for _layer to render_ and _skip opacity reset_ (`MASK, mask, MSK, msk`)

CHANGELOG.md

@@ -14,6 +14,13 @@ Activate / deactivate layer opacity according to prefix
 Activate / deactivate all masks using MA layers
 -->
 
+1.8.3
+
+- changed: for layer with 0 opacity, do not send to render and keep opacity
+- removed: `GP` prefix exclusion to send GP to render
+- added: more default prefix exclusion for _layer to render_ and _skip opacity reset_ (`MASK, mask, MSK, msk`)
+- added: option to restore layer state from json (commit by Christophe.S)
+
 1.8.2
 
 - added: `Reset Layer State` (Check layer) in Autobuild

OP_auto_build.py

@@ -77,7 +77,7 @@ class GPEXP_OT_render_auto_build(bpy.types.Operator):
         description='Set single user on all objects GP data')
 
     excluded_prefix : StringProperty(
-        name='Excluded Layer By Prefix', default='GP, RG, PO, MA',
+        name='Excluded Layer By Prefix', default='RG, PO, MA, MASK, mask, MSK, msk',
         description='Exclude layer to send to render by prefix (comma separated list)')
 
     clean_name_and_visibility : BoolProperty(name='Clean Name And Visibility', default=True,
@@ -196,7 +196,7 @@ class GPEXP_OT_render_auto_build(bpy.types.Operator):
 
         all_gp_objects = [o for o in context.scene.objects if o.type == 'GPENCIL']
 
-        ## clean name and visibility
+        ## Clean name and visibility
         if self.clean_name_and_visibility:
             for o in all_gp_objects:
                 if o.hide_render:
@@ -208,10 +208,10 @@ class GPEXP_OT_render_auto_build(bpy.types.Operator):
                         l.info = l.info + o.name.lower()
 
                     ## Make used prefix visible ?? (maybe some layer were intentionally hidden...)
-                    if (res := re.search(r'^([A-Z]{2})_', l.info)):
+                    # if (res := re.search(r'^([A-Z]{2})_', l.info)):
-                        if res.group(1) in prefix_to_render and l.hide == True and not 'invisible' in l.info:
+                    #     if res.group(1) in prefix_to_render and l.hide == True and not 'invisible' in l.info:
-                            print(f'{o.name} -> {l.info} : Switch visibility On')
+                    #         print(f'{o.name} -> {l.info} : Switch visibility On')
-                            l.hide = False
+                    #         l.hide = False
 
         if self.clean_material_duplication:
             print('Clean material duplicates')

OP_setup_layers.py

@@ -223,7 +223,7 @@ class GPEXP_OT_layers_state(bpy.types.Operator):
             \nAffect all layers)') # , options={'SKIP_SAVE'}
 
     opacity_exclude_list : StringProperty(name='Skip',
-        default='MA', description='Skip prefixes from this list when changing opacity\
+        default='MA, MASK, mask, MSK, msk', description='Skip prefixes from this list when changing opacity\
             \nSeparate multiple value with a comma (ex: MAIN)') # , options={'SKIP_SAVE'}
 
     hide_invisible_materials : BoolProperty(name='Hide Materials named invisible',
@@ -297,11 +297,15 @@ class GPEXP_OT_layers_state(bpy.types.Operator):
 
 
                 if l.opacity != 1:
-                    # TODO Skip zeroed opacity ?
+                    if l.opacity == 0:
-                    # check if there is an exclusion word
+                        ## Skip layer with zero opacity
-                    if any(x.strip() + '_' in l.info for x in self.opacity_exclude_list.strip(',').split(',') if x):
+                        print(f'Skipped layer opacity reset (0 opacity) : {l.info}')
-                        print(f'Skipped layer : {l.info}')
+
+                    elif any(x.strip() + '_' in l.info for x in self.opacity_exclude_list.strip(',').split(',') if x):
+                        # Skip layer if name has exclusion prefix
+                        print(f'Skipped layer opacity reset (prefix in exclusion list) : {l.info}')
                     else:
+                        ## Set full opacity
                         full_opacity_state = '' if self.set_full_opacity else ' (check only)'
                         mess = f'{l.info} : opacity {l.opacity:.2f} >> 1.0{full_opacity_state}'
                         print(mess)
@@ -341,7 +345,7 @@ class GPEXP_OT_layers_state(bpy.types.Operator):
             if changes:
                 changes.append('')
 
-        ## disable multiframe editing on all GP (can cause artifacts on render)
+        ## Disable multiframe editing on all GP (can cause artifacts on render)
         gp_mu_edit_ct = 0
         for gp in bpy.data.grease_pencils:
             if gp.use_multiedit:

__init__.py

@@ -2,7 +2,7 @@ bl_info = {
     "name": "GP Render",
     "description": "Organise export of gp layers through compositor output",
     "author": "Samuel Bernou",
-    "version": (1, 8, 2),
+    "version": (1, 8, 3),
     "blender": (3, 0, 0),
     "location": "View3D",
     "warning": "",

gen_vlayer.py

@@ -518,9 +518,10 @@ def export_gp_objects(oblist, exclude_list=[], scene=None, node_scene=None, base
         for l in ob.data.layers:
             # if l.hide:
             #     continue
-            if l.hide or any(x + '_' in l.info for x in exclude_list): # exclude hided ?
+            if l.hide or l.opacity == 0 or any(x + '_' in l.info for x in exclude_list):
                 print(f'Exclude export: {ob.name} : {l.info}')
-                l.viewlayer_render = fn.get_view_layer('exclude', scene=scene).name # assign "exclude"
+                # Assign "exclude" layer
+                l.viewlayer_render = fn.get_view_layer('exclude', scene=scene).name
                 continue
 
             get_set_viewlayer_from_gp(ob, l, scene=scene, node_scene=node_scene,