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## de.grogra.ray2.tracing
Class BiDirectionalProcessor

    java.lang.Object
      de.grogra.ray2.tracing.ProcessorBase
          de.grogra.ray2.tracing.RayProcessorBase
              de.grogra.ray2.tracing.PathTracer
                  de.grogra.ray2.tracing.BiDirectionalProcessor

All Implemented Interfaces:
  RayProcessor, java.lang.Cloneable

Direct Known Subclasses:
  MetropolisProcessor

    public class BiDirectionalProcessor

extends PathTracer

Author:
  Hagen Steidelm�ller

Nested Class Summary

Nested classes/interfaces inherited from class de.grogra.ray2.tracing.RayProcessorBase
`RayProcessorBase.Locals`

Field Summary
`int` | `bestLight`
`int` | `bestS`
`int` | `bestT`
`static java.lang.String` | `EYEPATH_DEPTH`
`static java.lang.String` | `HEURISTIC_FACTOR`
`boolean` | `isMetropolis`
`static java.lang.String` | `LIGHTPATH_DEPTH`
`LineTracer` | `lineTracer`
`CausticMap` | `loacalCausticMap`
`TracingMediator` | `tracingMediator`

Fields inherited from class de.grogra.ray2.tracing.PathTracer
`BRIGHTNESS`

Fields inherited from class de.grogra.ray2.tracing.RayProcessorBase
`enteredSolids, RECURSION_DEPTH, renderer, scene`

Constructor Summary
`BiDirectionalProcessor()`

Method Summary
`protected void` | `appendStatisticsImpl(java.lang.StringBuffer stats)`
`void` | `chooseBestPathCombination(int s, int t, int lightId, Tuple3d combWeight)`
`RayProcessor` | `dup(Scene scene)` Returns a clone of this `RayProcessor`.
`void` | `getColorFromRay(Line ray, Spectrum resp, Color4f color, java.util.Random random)` The main method of a ray processor.
`void` | `initialize(PixelwiseRenderer renderer, Scene scene)` With this method the processor is initialized with the scene and other information of a `PixelwiseRenderer`.
`void` | `initializeBeforeTracing(java.util.Random random)` With this method the processor is initialized with the Randomizer actually before starting the ray tracing.

Methods inherited from class de.grogra.ray2.tracing.PathTracer
`initLocals, mergeStatistics`

Methods inherited from class de.grogra.ray2.tracing.RayProcessorBase
`getIOR, getLightProcessor, record, record, setLightProcessor, setRecursionDepth, unrecord`

Methods inherited from class de.grogra.ray2.tracing.ProcessorBase
`appendStatistics, clone`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface de.grogra.ray2.tracing.RayProcessor
`appendStatistics`

Field Detail

### bestLight

    public int bestLight

### bestS

    public int bestS

### bestT

    public int bestT

### EYEPATH_DEPTH

    public static final java.lang.String EYEPATH_DEPTH

See Also:
  Constant Field Values

### HEURISTIC_FACTOR

    public static final java.lang.String HEURISTIC_FACTOR

See Also:
  Constant Field Values

### isMetropolis

    public boolean isMetropolis

### LIGHTPATH_DEPTH

    public static final java.lang.String LIGHTPATH_DEPTH

See Also:
  Constant Field Values

### lineTracer

    public LineTracer lineTracer

### loacalCausticMap

    public CausticMap loacalCausticMap

### tracingMediator

    public TracingMediator tracingMediator

Constructor Detail

### BiDirectionalProcessor

    public BiDirectionalProcessor()

Method Detail

### appendStatisticsImpl

    protected void appendStatisticsImpl(java.lang.StringBuffer stats)

  Overrides:
    `appendStatisticsImpl` in class `PathTracer`

### chooseBestPathCombination

    public void chooseBestPathCombination(int s,
                                          int t,
                                          int lightId,
                                          Tuple3d combWeight)

### dup

    public RayProcessor dup(Scene scene)

  Description copied from interface: `RayProcessor`
  Returns a clone of this `RayProcessor`. All constant variables are copied shallowly, state variables are newly created and copied where necessary.

  Specified by:
    `dup` in interface `RayProcessor`
  Overrides:
    `dup` in class `RayProcessorBase`
  Parameters:
    `scene` - duplicate of scene
  Returns:
    clone of this ray processor

### getColorFromRay

    public void getColorFromRay(Line ray,
                                Spectrum resp,
                                Color4f color,
                                java.util.Random random)

  Description copied from interface: `RayProcessor`
  The main method of a ray processor. This method computes a `color` for the specified `ray`. `color.w` contains the alpha value for the ray, the other components are premultiplied with this alpha value.

  Specified by:
    `getColorFromRay` in interface `RayProcessor`
  Overrides:
    `getColorFromRay` in class `RayProcessorBase`
  Parameters:
    `ray` - input - calculate for this ray
    `resp` - responsivity of camera
    `color` - output - the calculated color
    `random` - pseudorandom generator

### initialize

    public void initialize(PixelwiseRenderer renderer,
                           Scene scene)

  Description copied from interface: `RayProcessor`
  With this method the processor is initialized with the scene and other information of a `PixelwiseRenderer`.

  Specified by:
    `initialize` in interface `RayProcessor`
  Overrides:
    `initialize` in class `PathTracer`
  Parameters:
    `renderer` - the renderer which provides the needed information
    `scene` - the scene which is rendered

### initializeBeforeTracing

    public void initializeBeforeTracing(java.util.Random random)

  Description copied from interface: `RayProcessor`
  With this method the processor is initialized with the Randomizer actually before starting the ray tracing.

  Specified by:
    `initializeBeforeTracing` in interface `RayProcessor`
  Overrides:
    `initializeBeforeTracing` in class `RayProcessorBase`
  Parameters:
    `random` - pseudorandom generator

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