fix empty names - set color

1.1.1

- changed: autobuild beta
- added: autobuild: fix layer name with empty desc (only prefix)
- added: autobuild: Set layer color autoamtically (if not some already there)

CHANGELOG.md

@@ -17,6 +17,8 @@ Activate / deactivate all masks using MA layers
 1.1.1
 
 - changed: autobuild beta
+- added: autobuild: fix layer name with empty desc (only prefix)
+- added: autobuild: Set layer color autoamtically (if not some already there)
 
 1.1.0
 

OP_auto_build.py

@@ -1,4 +1,5 @@
 import bpy
+import re
 from pathlib import Path
 from . import gen_vlayer, fn
 
@@ -58,26 +59,47 @@ class GPEXP_OT_render_auto_build(bpy.types.Operator):
         name='Excluded Layer By Prefix', default='GP,RG,PO',
         description='Exclude layer to send to render by prefix (comma separated list)')
 
-    ## TODO: add props to fine tune the auto-build
+    timer : bpy.props.FloatProperty(default=0.01, options={'SKIP_SAVE'})
-    # mode : bpy.props.StringProperty(options={'SKIP_SAVE'})
 
     def execute(self, context):
         print('-- Auto-build Render scene --\n')
         ## TODO: Add colors to layers (specified in ENV or hardcoded for now...)
         ## Option: Maybe find a way to create a color from prefix hash ? (always give unique color with same prefix on other project!)
 
+        prefix_to_render = ['CO', 'CU', 'FX', 'TO', 'MA'] # TODO : add to preferences / environment var
+
         render_scn = bpy.data.scenes.get('Render')
         if render_scn:
             self.report({'ERROR'}, 'A "Render" scene already exists')
             return {'CANCELLED'}
+        
+        ## clean name and visibility
+        for o in [o for o in context.scene.objects if o.type == 'GPENCIL']:
+            if o.hide_render:
+                print(f'skip: {o.name} hide render')
+                continue
+            for l in o.data.layers:
+                ## Clean name when layer has no name after prefix
+                if re.match(r'^[A-Z]{2}_$', l.info):
+                    l.info = l.info + o.name.lower()
+                ## Make used prefix visible ?
+                if (res := re.search(r'^([A-Z]{2})_', l.info)):
+                    if res.group(1) in prefix_to_render and l.hide == True:
+                        print(f'{o.name} -> {l.info} : Switch visibility On')
+                        l.hide = False
+        
         ob_list = [o for o in context.scene.objects if o.type == 'GPENCIL' and not o.hide_get() and fn.is_valid_name(o.name)]
         if not ob_list:
             self.report({'ERROR'}, 'No GP object to render found')
             return {'CANCELLED'}
+
         print('GP objects to send:')
         for o in ob_list:
             print(f' - {o.name}')
 
+        # Set layers colors (skip if colors were already set ?)
+        fn.set_layer_colors(skip_if_colored=True)
+
         ## Trigger rename lowercase
         print('Trigger rename lowercase')
         bpy.ops.gp.lower_layers_name('EXEC_DEFAULT')
@@ -134,7 +156,7 @@ class GPEXP_OT_render_auto_build(bpy.types.Operator):
                 if ret != {'FINISHED'}:
                     print('No GP render workspace available')
 
-        bpy.app.timers.register(batch_setup_render_scene, first_interval=0.001)
+        bpy.app.timers.register(batch_setup_render_scene, first_interval=self.timer)
 
         ## Trigger check file before finishing ?
         # bpy.ops.gp.check_render_scene('INVOKE_DEFAULT')

__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, 1, 0),
+    "version": (1, 1, 1),
     "blender": (2, 93, 0),
     "location": "View3D",
     "warning": "",

fn.py

@@ -1545,3 +1545,35 @@ def set_scene_output_from_active_fileout_item():
             continue
         if hasattr(scn.render.image_settings, attr) and not scn.render.image_settings.is_property_readonly(attr):
             setattr(scn.render.image_settings, attr, getattr(fmt, attr))
+
+
+def set_layer_colors(skip_if_colored=False):
+    '''Set hardcoded color to grease pencil layer channel according to prefixes'''
+
+    ## UW -> TO (here used fo CU): (0.015996, 0.246201, 0.246201) # Indigo
+    ## invisible (close to violet light) in UW: (0.246201, 0.132868, 0.496933)
+    prefix_color = {
+        # 'MA_': (0.09, 0.08, 0.46), # Vivid blue
+        'MA_': (0.65, 0.4, 0.6), # Pink Light
+
+        'FX_': (0.12, 0.33, 0.58), # (0.3, 0.49, 0.63) # Blue Light
+        # 'CO_': (0.35, 0.0085, 0.25),
+        'CO_': (0.5,0.1,0.5), # Clear Pink
+        # 'CU': (0.092070, 0.177356, 0.447959), # Blue clear
+        'CU_': (0.02, 0.27, 0.27), # Indigo
+    }
+
+    for ob in bpy.context.scene.objects:
+        if ob.type != 'GPENCIL':
+            continue
+        if skip_if_colored and any([has_channel_color(l) for l in ob.data.layers]):
+            continue
+        for l in ob.data.layers:
+            # if l.info.startswith(prefix_color.keys()):
+            color = prefix_color.get(l.info[:3])
+            if not color:
+                continue
+            print(l.info, '->', color)
+            l.channel_color = color
+    
+    bpy.context.preferences.edit.use_anim_channel_group_colors = True