Creating a new animation node

Development Character & Animation
, , , ,
1

I’d like to introduce a new type of animation node.

I created a stub class that derives from FAnimNode_SkeletalControlBase:

USTRUCT()
struct FAnimNode_LegsWalk : public FAnimNode_SkeletalControlBase
{
   GENERATED_USTRUCT_BODY();
    
   FAnimNode_LegsWalk() {}

   virtual void GatherDebugData( FNodeDebugData& DebugData ) override {}
   virtual void EvaluateBoneTransforms( USkeletalMeshComponent* SkelComp, const FBoneContainer& RequiredBones, FA2CSPose& MeshBases, TArray<FBoneTransform>& OutBoneTransforms ) override {}
   virtual bool IsValidToEvaluate( const USkeleton* Skeleton, const FBoneContainer& RequiredBones ) override {}
  
private:
   virtual void InitializeBoneReferences( const FBoneContainer& RequiredBones ) override {}
};

It’s really just an empty class at this point, a part of my game’s custom module. The thing is - after I compile it and run the editor, it doesn’t show up in the animation nodes menu.

How do I get it to register correctly?
My guess is that I’m missing some glue code here.

Could anyone tell me what it is?

Thanks

2

According to the Animation Node Technical Guide you also have implement a UAnimGraphNode which handles the functionality of the node in the AnimGraph.

There are is also a more in depth community tutorial here.

If you want to ship your game with the custom AnimGrapNode you should also take a look at this.