Simple bug fix on unity 3d project.

We have a simple unity project with AR function. It's almost done. For now there is an issue with place model. For scan a space for place a building model on a floor, yellow dots or polygon is shown after place the model the yellow dots or polygon must be removed from the camera view. But it's still showing on the space. The project link is here. [login to view URL] Once you [login to view URL] reply me. This will be long term project. Thanks