org.sunflow.core.gi

Class PathTracingGIEngine

Implemented Interfaces:
GIEngine

public class PathTracingGIEngine
extends java.lang.Object
implements GIEngine

Constructor Summary

PathTracingGIEngine(Options options)

Method Summary

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).
Color
getIrradiance(ShadingState state, Color diffuseReflectance)
Return the incomming irradiance due to indirect diffuse illumination at the specified surface point.
boolean
init(Scene scene)
Initialize the engine.
boolean
requiresPhotons()

Constructor Details

PathTracingGIEngine

public PathTracingGIEngine(Options options)

Method Details

getGlobalRadiance

public 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.
Specified by:
getGlobalRadiance in interface GIEngine
Parameters:
state - shading state
Returns:
color approximating global radiance

getIrradiance

public Color getIrradiance(ShadingState state,
                           Color diffuseReflectance)
Return the incomming irradiance due to indirect diffuse illumination at the specified surface point.
Specified by:
getIrradiance in interface GIEngine
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

init

public boolean init(Scene scene)
Initialize the engine. This is called before rendering begins.
Specified by:
init in interface GIEngine
Returns:
true if the init phase succeeded, false otherwise

requiresPhotons

public boolean requiresPhotons()