fromGraphNode method

void fromGraphNode(Object3D group)

Implementation

void fromGraphNode(Object3D group){
  group.updateWorldMatrix(true, true);
  group.traverse((object){
    if(object.type == 'Mesh'){
      Mesh obj = object;
      late BufferGeometry geometry;
      bool isTemp = false;

      if(obj.geometry!.index != null){
        isTemp = true;
        geometry = obj.geometry!.clone().toNonIndexed();
      }
      else {
        geometry = obj.geometry!;
      }

			  BufferAttribute positionAttribute = geometry.getAttribute('position');

				for(int i = 0; i < positionAttribute.count; i += 3) {
					Vector3 v1 = Vector3().fromBufferAttribute(positionAttribute, i);
					Vector3 v2 = Vector3().fromBufferAttribute(positionAttribute, i + 1);
					Vector3 v3 = Vector3().fromBufferAttribute(positionAttribute, i + 2);

					v1.applyMatrix4(obj.matrixWorld);
					v2.applyMatrix4(obj.matrixWorld);
					v3.applyMatrix4(obj.matrixWorld);

					addTriangle(Triangle(v1, v2, v3));
				}

      if(isTemp){
        geometry.dispose();
      }
    }
  });

  build();
}