Small automated script

Coding Python Support
1

Hey guys,

i need your help for a small script, because my python skills are very low.

i would like to automate on my selected objects:

-Dublicate object “linked”
-constrain dublicate to original object with “Transforms”
-set all material_slots of dublicate to “object”
-override all empty materials with custom material. A black one for example
-move dublicate with black materials to specific layer

It would be nice if this would work on a hierachy so it would be possible to do this with rigs.

This is what i did so far, biggest problem is to set a material to the empty slots.


import bpy

for ob in bpy.context.selected_objects:
    bpy.ops.object.select_all(action='DESELECT')
    ob.select = True

    bpy.ops.object.duplicate_move_linked(OBJECT_OT_duplicate={"linked":True, "mode":'TRANSLATION'}, TRANSFORM_OT_translate={"value":(0,   0, 0), "constraint_axis":(False, False, False), "constraint_orientation":'GLOBAL', "mirror":False, "proportional":'DISABLED',       "proportional_edit_falloff":'SMOOTH', "proportional_size":1, "snap":False, "snap_target":'CLOSEST', "snap_point":(0, 0, 0),     "snap_align":False, "snap_normal":(0, 0, 0), "gpencil_strokes":False, "texture_space":False, "remove_on_cancel":False, "release_confirm":False})

    ob.select = True

    bpy.context.scene.objects.active = bpy.context.selected_objects[0]

    bpy.ops.object.constraint_add_with_targets(type='COPY_TRANSFORMS')

    mat = bpy.data.materials.get("#BLACK")

    new = bpy.context.selected_objects[1]

    for matslot in new.material_slots:
        i = ob.material_slots.find(matslot.name)

        matslot.link = 'OBJECT'

thanks a lot

cheers Daniel

2

Hey guys,

i think i got it, works well so far.
Now i have two buttons, one with black material and one without material.

The goal was to have a second viewport as an alpha mask to key the orignial viewport in realtime over a hardware picture mixer. I think there is a much more elegant way to do this, but im a beginner :slight_smile:
Biggest problem was to select and deselect the objects in the script.

Cheers Daniel

bl_info = {
    "name": "Alpha",
    "author": "DanielPaul",
    "version": (1, 0),
    "blender": (2, 78, 0),
    "location": "View3D > Tool Shelf > My Tab",
    "description": "Makes_object_to_alpha",
    "warning": "",
    "wiki_url": "",
    "category": "Duplicate",
    }


import bpy




def main(context):
    #get selected objects
    for ob in bpy.context.selected_objects:
        
        #deselect all
        bpy.ops.object.select_all(action='DESELECT')
        #select only ob
        ob.select = True


        #dublicate linked    
        bpy.ops.object.duplicate_move_linked(OBJECT_OT_duplicate={"linked":True, "mode":'TRANSLATION'}, TRANSFORM_OT_translate={"value":(0,   0, 0), "constraint_axis":(False, False, False), "constraint_orientation":'GLOBAL', "mirror":False, "proportional":'DISABLED',       "proportional_edit_falloff":'SMOOTH', "proportional_size":1, "snap":False, "snap_target":'CLOSEST', "snap_point":(0, 0, 0),     "snap_align":False, "snap_normal":(0, 0, 0), "gpencil_strokes":False, "texture_space":False, "remove_on_cancel":False, "release_confirm":False})
        
        #select new linked dublicate    
        ob.select = True
        #set original as active
        bpy.context.scene.objects.active = bpy.context.selected_objects[0]
        #constraint "transform"
        bpy.ops.object.constraint_add_with_targets(type='COPY_TRANSFORMS')


        #select linked dublicate
        new = bpy.context.selected_objects[1]


        #change "data" in material slot to "object"    
        for matslot in new.material_slots:
            
            matslot.link = 'OBJECT'
            
        bpy.ops.object.select_all(action='DESELECT')
        new.select = True
        bpy.ops.object.move_to_layer(layers=(False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, True))


def second(context):
    #get selected objects
    for ob in bpy.context.selected_objects:
        
        #get black mat
        mat = bpy.data.materials.get("#BLACK")


        if mat is None:
            # create material
            mat = bpy.data.materials.new(name="#BLACK")
            mat.diffuse_color = (0,0,0)
            mat.specular_color = (0,0,0)




        #deselect all
        bpy.ops.object.select_all(action='DESELECT')
        #select only ob
        ob.select = True


        #dublicate linked    
        bpy.ops.object.duplicate_move_linked(OBJECT_OT_duplicate={"linked":True, "mode":'TRANSLATION'}, TRANSFORM_OT_translate={"value":(0,   0, 0), "constraint_axis":(False, False, False), "constraint_orientation":'GLOBAL', "mirror":False, "proportional":'DISABLED',       "proportional_edit_falloff":'SMOOTH', "proportional_size":1, "snap":False, "snap_target":'CLOSEST', "snap_point":(0, 0, 0),     "snap_align":False, "snap_normal":(0, 0, 0), "gpencil_strokes":False, "texture_space":False, "remove_on_cancel":False, "release_confirm":False})
        
        #select new linked dublicate    
        ob.select = True
        #set original as active
        bpy.context.scene.objects.active = bpy.context.selected_objects[0]
        #constraint "transform"
        bpy.ops.object.constraint_add_with_targets(type='COPY_TRANSFORMS')


        #select linked dublicate
        new = bpy.context.selected_objects[1]


        #change "data" in material slot to "object"    
        for matslot in new.material_slots:
            
            matslot.link = 'OBJECT'
            


                #set black mat to empty mat slots in dublicate
        for i in range(len(new.material_slots)):
            new.material_slots[i].material = mat
            
        bpy.ops.object.select_all(action='DESELECT')
        new.select = True
        bpy.ops.object.move_to_layer(layers=(False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, True))


class WhiteAlphaDublicate(bpy.types.Operator):
    """Tooltip"""
    bl_idname = "myops.white_alphadublicate"
    bl_label = "White alpha"




    def execute(self, context):
        main(context)
        return {'FINISHED'}
    
class BlackAlphaDublicate(bpy.types.Operator):
    """Tooltip"""
    bl_idname = "myops.black_alphadublicate"
    bl_label = "Black alpha"




    def execute(self, context):
        second(context)
        return {'FINISHED'}
    
class AlphaDublicatePanel(bpy.types.Panel):
    """Creates a Panel in the Tool Shelf"""
    bl_label = "Alpha dublicate"
    bl_idname = "OBJECT_PT_alpha"
    bl_space_type = 'VIEW_3D'
    bl_region_type = 'TOOLS'
    bl_category = "Studio_tools"


    def draw(self, context):
        layout = self.layout


        row = layout.row()
        row.operator("myops.white_alphadublicate")
        row.operator("myops.black_alphadublicate")


def register():
    bpy.utils.register_class(WhiteAlphaDublicate)
    bpy.utils.register_class(BlackAlphaDublicate)
    bpy.utils.register_class(AlphaDublicatePanel)


def unregister():
    bpy.utils.unregister_class(WhiteAlphaDublicate)
    bpy.utils.unregister_class(BlackAlphaDublicate)
    bpy.utils.unregister_class(AlphaDublicatePanel)


if __name__ == "__main__":
    register()