jMonkeyEngine.org

TrianglePick.getIntersectionPoint() is not always returning the nearest intersection. Actually getIntersectionPoint is a bit unspecifiy as there might be more than one points in one mesh that are hit. Nevertheless to make the thing more predictable I changed the method to always return the nearest intersectionpoint.

as before, to get a result you need enable checkDistance for TrianglePickResult

Here is the patch:

Index: src/com/jme/intersection/TrianglePickData.java
===================================================================
--- src/com/jme/intersection/TrianglePickData.java   (revision 5616)
+++ src/com/jme/intersection/TrianglePickData.java   (working copy)
@@ -52,7 +52,8 @@
     private final Vector3f[] vertices = new Vector3f[]{new Vector3f(), new Vector3f(), new Vector3f()};
 
    private final Vector3f intersectionPoint = new Vector3f();
-
+   private final Vector3f nearestIntersectionPoint = new Vector3f();
+   
     public TrianglePickData(Ray ray, TriMesh targetMesh,
          ArrayList targetTris, boolean checkDistance) {
       super(ray, targetMesh, targetTris, false);
@@ -81,6 +82,7 @@
          distances[i] = triDistanceSq;
          if (triDistanceSq > 0 && triDistanceSq < distanceSq) {
                 distanceSq = triDistanceSq;
+                nearestIntersectionPoint.set(intersectionPoint);
          }
       }
       
@@ -128,8 +130,15 @@
       return Float.POSITIVE_INFINITY;
    }
 
+   /**
+    *
+    * returns the nearest intersection point! This method only works with setCheckDistance(...)
+    * enabled in TrianglePickResults
+    *
+    * @return Vector3f nearest intersection-point
+    */
    public Vector3f getIntersectionPoint() {
-      return intersectionPoint;
+      return nearestIntersectionPoint;
    }