Method Detail

• getRadiance

  Color getRadiance​(ShadingState state)

  Gets the radiance for a specified rendering state. When this method is called, you can assume that a hit has been registered in the state and that the hit surface information has been computed.

  Parameters:

  state - current render state

  Returns:

  color emitted or reflected by the shader

• scatterPhoton

  void scatterPhoton​(ShadingState state,
                     Color power)

  Scatter a photon with the specied power. Incoming photon direction is specified by the ray attached to the current render state. This method can safely do nothing if photon scattering is not supported or relevant for the shader type.

  Parameters:

  state - current state

  power - power of the incoming photon.

• isOpaque

  boolean isOpaque()

  Returns true if this shader is fully opaque. This gives a quick way to find out if a shader needs further processing when hit by a shadow ray.

• getOpacity

  Color getOpacity​(ShadingState state)

  Returns how much light is blocked by this shader.