bugfix: interpolation failures while using TransformTrackBuilder

stephengold · Oct 6, 2023 · 312eee2 · 312eee2
1 parent 776d1d9
commit 312eee2
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/WesLibrary/src/main/java/jme3utilities/wes/TransformTrackBuilder.java b/WesLibrary/src/main/java/jme3utilities/wes/TransformTrackBuilder.java
@@ -28,6 +28,7 @@ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 import com.jme3.anim.TransformTrack;
 import com.jme3.anim.util.HasLocalTransform;
 import com.jme3.math.Quaternion;
+import com.jme3.math.Transform;
 import com.jme3.math.Vector3f;
 import java.util.Map;
 import java.util.Set;
@@ -107,6 +108,14 @@ public TransformTrackBuilder(HasLocalTransform target, float duration) {
 
         this.target = target;
         this.duration = duration;
+        /*
+         * Give each track component a keyframe at t=0
+         * to ensure interpolation will work:
+         */
+        Transform t = target.getLocalTransform();
+        addRotation(0f, t.getRotation());
+        addScale(0f, t.getScale());
+        addTranslation(0f, t.getTranslation());
     }
     // *************************************************************************
     // new methods exposed