Automatic_Key_Framer.py

"""
Copyright (c) [2/25/24] [Dieton]

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

!!!Warning!!!
This is VERRY SLOW if you are doing this on a lot of objects or bones and frames

This script sets keyframes on every frame of all selected object set bellow

"""

import bpy

def set_keyframes(start_frame, end_frame):
    # Get the selected pose bones
    selected_pose_bones = bpy.context.selected_pose_bones

    # Check if any pose bones are selected
    if not selected_pose_bones:
        print("Error: No pose bones selected.")
        return

    # Iterate through selected pose bones
    for bone in selected_pose_bones:
        # Store initial transforms
        initial_location = bone.location.copy()
        initial_rotation = bone.rotation_quaternion.copy() if bone.rotation_mode == 'QUATERNION' else bone.rotation_euler.copy()
        initial_scale = bone.scale.copy()

        # Set keyframes at every frame from start to end frame
        for frame in range(start_frame, end_frame + 1):
            bpy.context.scene.frame_set(frame)
            bone.location = initial_location
            if bone.rotation_mode == 'QUATERNION':
                bone.rotation_quaternion = initial_rotation
            else:
                bone.rotation_euler = initial_rotation
            bone.scale = initial_scale
            bone.keyframe_insert(data_path="location", index=-1)
            if bone.rotation_mode == 'QUATERNION':
                bone.keyframe_insert(data_path="rotation_quaternion", index=-1)
            else:
                bone.keyframe_insert(data_path="rotation_euler", index=-1)
            bone.keyframe_insert(data_path="scale", index=-1)

        # Reset transforms to initial values
        bone.location = initial_location
        if bone.rotation_mode == 'QUATERNION':
            bone.rotation_quaternion = initial_rotation
        else:
            bone.rotation_euler = initial_rotation
        bone.scale = initial_scale

# Set your desired start and end frames
start_frame = 1
end_frame = 60

# Call the function to set keyframes
set_keyframes(start_frame, end_frame)