add webgpu_animation_retargeting

Author: sunag

examples/files.json

@@ -301,6 +301,7 @@
 		"webgl_performance"
 	],
 	"webgpu (wip)": [
+		"webgpu_animation_retargeting",
 		"webgpu_backdrop",
 		"webgpu_backdrop_area",
 		"webgpu_backdrop_water",

examples/jsm/utils/SkeletonUtils.js

@@ -15,7 +15,6 @@ function retarget( target, source, options = {} ) {
 	const pos = new Vector3(),
 		quat = new Quaternion(),
 		scale = new Vector3(),
-		bindBoneMatrix = new Matrix4(),
 		relativeMatrix = new Matrix4(),
 		globalMatrix = new Matrix4();
 
@@ -29,8 +28,7 @@ function retarget( target, source, options = {} ) {
 	const sourceBones = source.isObject3D ? source.skeleton.bones : getBones( source ),
 		bones = target.isObject3D ? target.skeleton.bones : getBones( target );
 
-	let bindBones,
-		bone, name, boneTo,
+	let bone, name, boneTo,
 		bonesPosition;
 
 	// reset bones
@@ -76,35 +74,10 @@ function retarget( target, source, options = {} ) {
 
 	}
 
-	if ( options.offsets ) {
-
-		bindBones = [];
-
-		for ( let i = 0; i < bones.length; ++ i ) {
-
-			bone = bones[ i ];
-			name = options.names[ bone.name ] || bone.name;
-
-			if ( options.offsets[ name ] ) {
-
-				bone.matrix.multiply( options.offsets[ name ] );
-
-				bone.matrix.decompose( bone.position, bone.quaternion, bone.scale );
-
-				bone.updateMatrixWorld();
-
-			}
-
-			bindBones.push( bone.matrixWorld.clone() );
-
-		}
-
-	}
-
 	for ( let i = 0; i < bones.length; ++ i ) {
 
 		bone = bones[ i ];
-		name = options.names[ bone.name ] || bone.name;
+		name = options.names[ bone.name ];
 
 		boneTo = getBoneByName( name, sourceBones );
 
@@ -136,18 +109,23 @@ function retarget( target, source, options = {} ) {
 
 			if ( target.isObject3D ) {
 
-				const boneIndex = bones.indexOf( bone ),
-					wBindMatrix = bindBones ? bindBones[ boneIndex ] : bindBoneMatrix.copy( target.skeleton.boneInverses[ boneIndex ] ).invert();
+				if ( options.offsets && boneTo ) {
 
-				globalMatrix.multiply( wBindMatrix );
+					if ( options.offsets[ bone.name ] ) {
+
+						globalMatrix.multiply( options.offsets[ bone.name ] );
+
+					}
+
+				}
 
 			}
 
 			globalMatrix.copyPosition( relativeMatrix );
 
 		}
 
-		if ( bone.parent && bone.parent.isBone ) {
+		if ( bone.parent ) {
 
 			bone.matrix.copy( bone.parent.matrixWorld ).invert();
 			bone.matrix.multiply( globalMatrix );
@@ -200,6 +178,7 @@ function retarget( target, source, options = {} ) {
 function retargetClip( target, source, clip, options = {} ) {
 
 	options.useFirstFramePosition = options.useFirstFramePosition !== undefined ? options.useFirstFramePosition : false;
+
 	// Calculate the fps from the source clip based on the track with the most frames, unless fps is already provided.
 	options.fps = options.fps !== undefined ? options.fps : ( Math.max( ...clip.tracks.map( track => track.times.length ) ) / clip.duration );
 	options.names = options.names || [];