Method Detail

• getGlobalRadiance

  Color getGlobalRadiance(ShadingState state)

  This is an optional method for engines that contain a secondary illumination engine which can return an approximation of the global radiance in the scene (like a photon map). Engines can safely return Color.BLACK if they can't or don't wish to support this.

  Parameters:

  state - shading state

  Returns:

  color approximating global radiance

• init

  boolean init(Options options,
               Scene scene)

  Initialize the engine. This is called before rendering begins.

  Returns:

  true if the init phase succeeded, false otherwise

• getIrradiance

  Color getIrradiance(ShadingState state,
                      Color diffuseReflectance)

  Return the incomming irradiance due to indirect diffuse illumination at the specified surface point.

  Parameters:

  state - current render state describing the point to be computed

  diffuseReflectance - diffuse albedo of the point being shaded, this can be used for importance tracking

  Returns:

  irradiance from indirect diffuse illumination at the specified point