help getting 2 handed spear to line up with 2 handed spear attack animation

Help
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1

Godot Version

4.6.2

Question

Hello,

As the title says I am trying to make a 3D game where the main weapon is a spear, I would like to be able to change spear to other things for the character to hold so the spear is seperate from the character body and animations. I have run into the problem though of attaching the spear to the hands during the attack animation.The hands probably shouldn’t move at all apart from the animation since they drive the animation, and I want the spear to attach to the right hand most of the time, with the Grip_Off point of the spear snapping to the left hand during the attack animation. I have figured out how to create Marker3Ds that follow the hands on the player, Grip_Position_R and Grip_Position_L, but I don’t know how to get those to attach to the spear grip points, Grip_Main for the right hand and Grip_Off for the left. I figure that it involves some sort of rotation but otherwise I am stumped.

Previous attempts have lead to the spear wildly spinning, or the spear not actually being attached to the hands/driven forward in the animation.

Any help is appreciated, thanks.

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2

Try the CopyTransformModifier3D node. Attach it as a child of Skeleton3D.

Grip_BoneAttach_R and _L can be Apply Bones and Grip_Main, Grip_Off can be the Reference Nodes.

This will however be a sort of a backwards logic, that the bones will be placed where the spear is and not the spear being placed where the bones are. Meaning you would have to animate the spear and the hands will just follow.
To flip this logic around some, you’ll need to give your spear an armature and some bones, then you can use the CopyTransformModifier3D on the spear skeleton.