Constructor Detail

• IntersectionState

  public IntersectionState()

  Initializes all traversal stacks.

Method Detail

• getTime

  public float getTime()

  Returns the time at which the intersection should be calculated. This will be constant for a given ray-tree. This value is guarenteed to be between the camera's shutter open and shutter close time.

  Returns:

  time value

• getStack

  public final IntersectionState.StackNode[] getStack()

  Get stack object for tree based AccelerationStructures.

  Returns:

  array of stack nodes

• hit

  public final boolean hit()

  Checks to see if a hit has been recorded.

  Returns:

  true if a hit has been recorded, false otherwise

• setIntersection

  public final void setIntersection​(int id)

  Record an intersection with the specified primitive id. The parent object is assumed to be the current instance. The u and v parameters are used to pinpoint the location on the surface if needed.

  Parameters:

  id - primitive id of the intersected object

• setIntersection

  public final void setIntersection​(int id,
                                    float u,
                                    float v)

  Record an intersection with the specified primitive id. The parent object is assumed to be the current instance. The u and v parameters are used to pinpoint the location on the surface if needed.

  Parameters:

  id - primitive id of the intersected object

  u - u surface paramater of the intersection point

  v - v surface parameter of the intersection point

• setIntersection

  public final void setIntersection​(int id,
                                    float u,
                                    float v,
                                    float w)

  Record an intersection with the specified primitive id. The parent object is assumed to be the current instance. The u and v parameters are used to pinpoint the location on the surface if needed.

  Parameters:

  id - primitive id of the intersected object

  u - u surface paramater of the intersection point

  v - v surface parameter of the intersection point