/** Average normals for vertices with same position. */
private void averageNormal() {
this.tempVertices.clear();
for (int i = 0; i < this.vertices.length; i++) {
final IVertex v1 = this.vertices[i];
this.tempVertices.add(v1);
// Find all vertices with same position.
for (int j = 0; j < this.vertices.length; j++) {
final IVertex v2 = this.vertices[j];
if (v1 != v2 && v2.getPosition().equals(v1.getPosition())) {
this.tempVertices.add(v2);
}
}
// Average vertices in list.
float x = 0;
float y = 0;
float z = 0;
for (IVertex vertex : this.tempVertices) {
x += vertex.getNormal().getX();
y += vertex.getNormal().getY();
z += vertex.getNormal().getZ();
}
final int size = this.tempVertices.size();
x = x / size;
y = y / size;
z = z / size;
final Vector3f sharedNormal = new Vector3f(x, y, z);
sharedNormal.normalizeLocal();
for (IVertex vertex : this.tempVertices) {
vertex.setNormalReference(sharedNormal);
}
// Clear out this group.
this.tempVertices.clear();
}
}
