Package com.ardor3d.extension.terrain.util

Class NormalMapUtil

java.lang.Object

com.ardor3d.extension.terrain.util.NormalMapUtil

public class NormalMapUtil
extends Object

Constructor Summary

Constructors

Constructor	Description
NormalMapUtil()

Method Summary

Modifier and Type	Method	Description
static Image	constructNormalMap(float[] heightmap, int side, double heightScale, double xGridSpacing, double zGridSpacing)	Generate an image from the given terrain height data to be used as a source for terrain normal maps.

Methods inherited from class java.lang.Object

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

Constructor Details

NormalMapUtil

public NormalMapUtil()

Method Details

constructNormalMap

public static Image constructNormalMap(float[] heightmap,
 int side,
 double heightScale,
 double xGridSpacing,
 double zGridSpacing)

Generate an image from the given terrain height data to be used as a source for terrain normal maps.

Parameters:

heightmap - the base height data. Generally this is the most detailed height data available. It must be a square heightmap, with a side of "side" as passed below.

side - the number of samples on a side of the heightmap. This could be calculated by taking the squareroot of heightmap.length, but generally this number is well known by the caller.

heightScale - the scaling factor applied to the heightMap values to get real world height.

xGridSpacing - real world spacing between grid in the x direction

zGridSpacing - real world spacing between grid in the z direction

Returns:

the normal image.