Specifies a perspective viewport, commonly used for 3D stimulus environments




  • Can take the RenderFrame node as an input
  • Path: The bottom boundary of the orthographic environment
  • Eye: The eye, or camera position, in the world coodinate frame
  • FieldOfView: The value of the angle of the field of view, in degrees
  • Light: The position of the main point light
  • Target: The target position in the world coordinate frame
  • Up: The up vector of the camera, in the world coordinate frame. Should be parallel to the camera direction
  • FarClip: The distance to the far clip plane
  • NearClip: The distance to the near clip plane


  • Can have the DrawStimuli node as an output
  • This can be an end node