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Contents
package org.sunflow.core;
import org.sunflow.image.Color;
/**
* This represents a global illumination algorithm. It provides an interface to
* compute indirect diffuse bounces of light and make those results available to
* shaders.
*/
public interface GIEngine {
/**
* 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
* <code>Color.BLACK</code> if they can't or don't wish to support this.
*
* @param state shading state
* @return color approximating global radiance
*/
public Color getGlobalRadiance(ShadingState state);
/**
* Initialize the engine. This is called before rendering begins.
*
* @return <code>true</code> if the init phase succeeded, <code>false</code>
* otherwise
*/
public boolean init(Options options, Scene scene);
/**
* Return the incomming irradiance due to indirect diffuse illumination at
* the specified surface point.
*
* @param state current render state describing the point to be computed
* @param diffuseReflectance diffuse albedo of the point being shaded, this
* can be used for importance tracking
* @return irradiance from indirect diffuse illumination at the specified
* point
*/
public Color getIrradiance(ShadingState state, Color diffuseReflectance);
}
Version data entries
4 entries across 4 versions & 1 rubygems