Copy and paste drivers for RGB

Coding Python Support
1

Does anyone know if an addon for this exists?

image
image896×722 95.2 KB

I’ve searched high and low but I’m having no luck. I know how to copy and paste drivers for individual colour channels, but it is tedious and time consuming.

2

Hmm… I haven’t seen one for it, and my search isn’t showing anything, but it should be simple to whip up. Do you have any Python experience?

3

I wouldn’t call what I know in Python experience, as I mainly reverse engineer things to figure them out. I’ve given this a stab but it’s way over my head.

4

Color as a custom property ?? Even downloaded 3.4 alpha… did i misss something??

5

I’m in 3.0.1. You just need to change these:
image

1 Like
6

Ahhh… thanks… i learnt someting new today… (also in 3.3.1)…

7

So,… Type and Sub Type are something new?

I’m at 2.93 - don’t see it.

( BTW… I don’t know very much about drivers )

8

Hmm… playing with this… i can connect the driver per color (r,g,b) aka array index (0,1,2) as you already know… but naahh not as one color object (something like: casted from int array…) … but it’s only updating if i hit Update Dependencies … but’s that’s not your problem :stuck_out_tongue_winking_eye:
Yes an addon (or an native procedure) would be helpful…

… hmm even using the Vieeport Display Color for this instead a Custom Property doesn’t help (because it’s looks much more like a color-object )

>>> print( bpy.data.objects["Object"].color) )
>>> <bpy_float[4], Object.color>

But where to insert in the driver… ? Seems to be not possible yet…

1 Like
9

Over a year later, I tried again ! Success…

rgbdriver

Who knows if this is the proper way to do it, but it works… :smile:

For 3.0:

import bpy
from bpy.types import Operator, Header, Menu, Panel

class WM_MT_button_context(Menu):
    bl_label = ""

    def draw(self, context):
        pass

def draw_func_above(self, context):
    layout = self.layout
    
    try:
        prop = context.button_prop
        obj = context.button_pointer
        
        if prop.subtype == 'COLOR':            
            
            if obj.type == 'MESH' or obj.type == 'EMPTY':                
                layout.operator("rgbdrivers.copy_customprop",text="Copy driver as RGB - Custom Prop",icon='COPYDOWN')
            
            if obj.node != None and bpy.types.Scene.CopyRGB_copied == 1:
                layout.operator("rgbdrivers.paste_nodegroup",text="Paste driver as RGB - Node Group",icon='PASTEDOWN')            
            
    except:pass

class Copy_CustomProp(Operator):
    bl_idname = "rgbdrivers.copy_customprop"
    bl_label = ""    
    bl_options = {'REGISTER', 'UNDO', 'INTERNAL'}    
    
    def execute(self, context):

        prop = context.button_prop
        obj = context.button_pointer
        
        bpy.types.Scene.CopyRGB_obj = obj.name    
        bpy.types.Scene.CopyRGB_prop = prop.name        
        bpy.types.Scene.CopyRGB_copied = 1        
       
        obj.update_tag() 
                
        return{'FINISHED'}
    

class Paste_NodeGroup(Operator):
    bl_idname = "rgbdrivers.paste_nodegroup"
    bl_label = ""    
    bl_options = {'REGISTER', 'UNDO', 'INTERNAL'}    
    
    def execute(self, context):
                
        prop = context.button_prop
        obj = context.button_pointer    
        node = obj.node
        
        def rgb_driver(index,color):

            fcurve = node.outputs[0].driver_add("default_value",index)
            
            d = fcurve.driver
            d.type = 'AVERAGE'        

            v = d.variables.new()
            v.name = color

            t = v.targets[0]
            t.id_type = 'OBJECT'
            t.id = bpy.data.objects[bpy.types.Scene.CopyRGB_obj]
            t.data_path = f'["{bpy.types.Scene.CopyRGB_prop}"]' + f'[{index}]'            
        
        rgb_driver(0,"red")
        rgb_driver(1,"green")
        rgb_driver(2,"blue")
        
        return{'FINISHED'}

classes = (
WM_MT_button_context,
Copy_CustomProp,
Paste_NodeGroup
)

def register():
    
    for cls in classes:
        bpy.utils.register_class(cls)    
    
    bpy.types.WM_MT_button_context.prepend(draw_func_above)    

    bpy.types.Scene.CopyRGB_obj = bpy.props.StringProperty()
    bpy.types.Scene.CopyRGB_prop = bpy.props.StringProperty()    
    bpy.types.Scene.CopyRGB_copied = bpy.props.StringProperty()    

def unregister():
    
    bpy.types.WM_MT_button_context.remove(draw_func_above)
    
    for cls in classes:
        bpy.utils.unregister_class(cls)        
    
    del bpy.types.Scene.CopyRGB_obj
    del bpy.types.Scene.CopyRGB_prop
    del bpy.types.Scene.CopyRGB_copied   

if __name__ == "__main__":
    register()
1 Like
10

Nice… to come back and show this :wink:

1 Like
11

Well done that you managed to look into it and complete it.

Only one thing to correct is this:

import bpy

# create property
bpy.types.Scene.CopyRGB_obj = bpy.props.StringProperty()


# warning: this will set the value to the class itself
#          as if it is a static value
bpy.types.Scene.CopyRGB_obj = 'OBJECT_NAME'

# >>> bpy.types.Scene.CopyRGB_obj
# 'OBJECT_NAME'


class Item:
    value = 'HELLO' # this is static value
    def __init__(self):
        self.value = '' # this is instance value
i = Item()
print(Item.value)
print(i.value)


# if I go to a new scene I will get the static
# value of the class like this
# >>> C.scene.name +" "+ bpy.types.Scene.CopyRGB_obj
# 'Scene.001 OBJECT_NAME'


# so the real trick here is to access
# all of the properties from context objects
print(bpy.context.scene.CopyRGB_obj)
1 Like