Got images working

- does not do UVs yet
- is able to pack images using a split algorithm. I think I broke the size finding though for the output canvas.
- does not combine materials after packing

core/properties.py

@@ -6,13 +6,18 @@ from bpy.utils import register_class
 
 
 class material_list_bool:
-    old_list: list[Material] = []
-    bool_material_list_expand: bool = False
+    #For the love that is holy do not ever touch these. If this was java I would make these private
+    #They should only be accessed via context.scene.texture_atlas_Has_Mat_List_Shown
+    #This is so we know if the materials are up to date. messing with these variables directly will make the thing blow up.
+    
+    #The only exception to this is the ExpandSection_Materials operator which populates this with new data once the materials have changed and need reloading.
+    old_list: dict[str,list[Material]] = {}
+    bool_material_list_expand: dict[str,bool] = {}
 
     def set_bool(self, value: bool) -> None:
-        material_list_bool.bool_material_list_expand = value
+        material_list_bool.bool_material_list_expand[bpy.context.scene.name] = value
         if value == False:
-            material_list_bool.old_list = []
+            material_list_bool.old_list[bpy.context.scene.name] = []
 
     def get_bool(self) -> bool:
             newlist: list[Material] = []
@@ -24,18 +29,20 @@ class material_list_bool:
                                 newlist.append(mat_slot.material)
             
             still_the_same: bool = True
-            for item in newlist:
-                if item not in material_list_bool.old_list:
-                    still_the_same = False
-                    break
-            for item in material_list_bool.old_list:
-                if item not in newlist:
-                    still_the_same = False
-                    break
-
-            material_list_bool.bool_material_list_expand = still_the_same
+            if bpy.context.scene.name in material_list_bool.old_list:
+                for item in newlist:
+                    if item not in material_list_bool.old_list[bpy.context.scene.name]:
+                        still_the_same = False
+                        break
+                for item in material_list_bool.old_list[bpy.context.scene.name]:
+                    if item not in newlist:
+                        still_the_same = False
+                        break
+            else:
+                still_the_same = False
+            material_list_bool.bool_material_list_expand[bpy.context.scene.name] = still_the_same
             
-            return material_list_bool.bool_material_list_expand
+            return material_list_bool.bool_material_list_expand[bpy.context.scene.name]
 
 class SceneMatClass(PropertyGroup):
     mat: PointerProperty(type=Material)
@@ -48,7 +55,7 @@ def register_properties():
     #happy with how compressed this get_texture_node_list method is - @989onan
     def get_texture_node_list(self: Material, context: Context) -> list[set[3]]:
         if self.use_nodes:
-            Object.Enum = [(i.name+"_image",(i.image.name if i.image else "node with no image..."),i.name,index+1) for index,i in enumerate(self.node_tree.nodes) if i.bl_idname == "ShaderNodeTexImage"]
+            Object.Enum = [((i.image.name if i.image else i.name+"_image"),(i.image.name if i.image else "node with no image..."),(i.image.name if i.image else i.name),index+1) for index,i in enumerate(self.node_tree.nodes) if i.bl_idname == "ShaderNodeTexImage"]
             if not len(Object.Enum):
                 Object.Enum = [("ERROR", "THIS MATERIAL HAS NO IMAGES!", "ERROR", 0)]
         else:
@@ -57,8 +64,9 @@ def register_properties():
         return Object.Enum
 
         
-    Material.texture_atlas_normal = EnumProperty(name="Normal", description="The texture that will be used for the normal map atlas", default=0, items=get_texture_node_list)
+    
     Material.texture_atlas_albedo = EnumProperty(name="Albedo", description="The texture that will be used for the albedo map atlas", default=0, items=get_texture_node_list)
+    Material.texture_atlas_normal = EnumProperty(name="Normal", description="The texture that will be used for the normal map atlas", default=0, items=get_texture_node_list)
     Material.texture_atlas_emission = EnumProperty(name="Emission", description="The texture that will be used for the emission map atlas", default=0, items=get_texture_node_list)
     Material.texture_atlas_ambient_occlusion = EnumProperty(name="Ambient Occlusion", description="The texture that will be used for the ambient occlusion map atlas", default=0, items=get_texture_node_list)
     Material.texture_atlas_height = EnumProperty(name="Height", description="The texture that will be used for the height map atlas", default=0, items=get_texture_node_list)