com.jme3.environment.generation

Class PrefilteredEnvMapFaceGenerator

java.lang.Object

com.jme3.environment.generation.RunnableWithProgress

com.jme3.environment.generation.PrefilteredEnvMapFaceGenerator

All Implemented Interfaces:

java.lang.Runnable

public class PrefilteredEnvMapFaceGenerator
extends RunnableWithProgress

Generates one face of the prefiltered environment map for PBR. This job can be launched from a separate thread.

TODO there is a lot of duplicate code here with the EnvMapUtils.

Field Summary

Fields inherited from class com.jme3.environment.generation.RunnableWithProgress

listener

Constructor Summary

Constructors

Constructor and Description
PrefilteredEnvMapFaceGenerator(Application app, int face, JobProgressListener<java.lang.Integer> listener) Creates a pem generator for the given face.

Method Summary

Modifier and Type	Method and Description
Vector3f	importanceSampleGGX(Vector4f xi, float a2, Vector3f store) Computes GGX half vector in local space
void	run()
void	setGenerationParam(TextureCubeMap sourceMap, int targetMapSize, EnvMapUtils.FixSeamsMethod fixSeamsMethod, EnvMapUtils.GenerationType genType, TextureCubeMap store) Fills all the generation parameters

Methods inherited from class com.jme3.environment.generation.RunnableWithProgress

getProgress, progress, reset, setEnd

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PrefilteredEnvMapFaceGenerator

public PrefilteredEnvMapFaceGenerator(Application app,
                                      int face,
                                      JobProgressListener<java.lang.Integer> listener)

Creates a pem generator for the given face. The app is needed to enqueue the call to the EnvironmentCamera when the generation is done, so that this process is thread safe.

Parameters:

app - the Application

face - the face to generate

listener - to monitor progress (alias created)

Method Detail

setGenerationParam

public void setGenerationParam(TextureCubeMap sourceMap,
                               int targetMapSize,
                               EnvMapUtils.FixSeamsMethod fixSeamsMethod,
                               EnvMapUtils.GenerationType genType,
                               TextureCubeMap store)

Fills all the generation parameters

Parameters:

sourceMap - the source cube map

targetMapSize - the size of the generated map (width or height in pixel)

fixSeamsMethod - the method used to fix seams as described in EnvMapUtils.FixSeamsMethod

genType - select Fast or HighQuality

store - The cube map to store the result in.

run

public void run()

importanceSampleGGX

public Vector3f importanceSampleGGX(Vector4f xi,
                                    float a2,
                                    Vector3f store)

Computes GGX half vector in local space

Parameters:

xi - (not null)

a2 - fourth power of roughness

store - caller-provided storage

Returns:

either store or a new vector (not null)