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Let me preface my question by saying I'm a very newbie user. I have a weapon model and the arms need to be rotated 90 degrees for every frame for the whole animation (and i've got a few more weapon models that need this to be done, but unfortunately it's a very lengthy process.) Is there anyway I can change the Rotation of a bone group for all frames of an animation?
Here's a picture of what I want to do, if it helps:
The armature should not have really have keyframes on its object at all: just its bones. Then the rotation for the object could be easily applied with Ctrl-A > Apply Rotation.
If the above is absolutely impossible, you could try something like this, but I will warn you it'll get messy fast! This will iterate over every frame and apply the rotation, then add a keyframe.
import bpy
scene = bpy.context.scene
for frame in range(scene.frame_start, scene.frame_end + 1):
scene.frame_set(frame)
bpy.ops.object.transform_apply(location=False, rotation=True, scale=False)
bpy.ops.anim.keyframe_insert_menu(type='Rotation')
You could also, like I said before, do something like this (if you're fine with the rotations getting screwed for the time being):
