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engine : added texture3D support based on darkfalkon Texture3D code and Kaelthas testcase

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git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@8002 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
3.0
rem..om 14 years ago
parent c26e4d8e42
commit 6c7082a7e3
5 changed files with 361 additions and 0 deletions
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  1. 224
      engine/src/core/com/jme3/texture/Texture3D.java
  2. 103
      engine/src/test/jme3test/texture/TestTexture3D.java
  3. 7
      engine/src/test/jme3test/texture/tex3D.frag
  4. 16
      engine/src/test/jme3test/texture/tex3D.j3md
  5. 11
      engine/src/test/jme3test/texture/tex3D.vert

224
engine/src/core/com/jme3/texture/Texture3D.java
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/*
* Copyright (c) 2009-2010 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.texture;
import com.jme3.export.JmeExporter;
import com.jme3.export.JmeImporter;
import com.jme3.export.InputCapsule;
import com.jme3.export.OutputCapsule;
import java.io.IOException;
/**
* @author Maarten Steur
*/
public class Texture3D extends Texture {
private WrapMode wrapS = WrapMode.EdgeClamp;
private WrapMode wrapT = WrapMode.EdgeClamp;
private WrapMode wrapR = WrapMode.EdgeClamp;
/**
* Creates a new two-dimensional texture with default attributes.
*/
public Texture3D() {
super();
}
/**
* Creates a new three-dimensional texture using the given image.
* @param img The image to use.
*/
public Texture3D(Image img) {
super();
setImage(img);
if (img.getFormat().isDepthFormat()) {
setMagFilter(MagFilter.Nearest);
setMinFilter(MinFilter.NearestNoMipMaps);
}
}
/**
* Creates a new three-dimensional texture for the purpose of offscreen
* rendering.
*
* @see com.jme3.texture.FrameBuffer
*
* @param width
* @param height
* @param depth
* @param format
*/
public Texture3D(int width, int height, int depth, Image.Format format) {
this(new Image(format, width, height, depth, null));
}
/**
* Creates a new three-dimensional texture for the purpose of offscreen
* rendering.
*
* @see com.jme3.texture.FrameBuffer
*
* @param width
* @param height
* @param format
* @param numSamples
*/
public Texture3D(int width, int height, int depth, int numSamples, Image.Format format) {
this(new Image(format, width, height, depth, null));
getImage().setMultiSamples(numSamples);
}
@Override
public Texture createSimpleClone() {
Texture3D clone = new Texture3D();
createSimpleClone(clone);
return clone;
}
@Override
public Texture createSimpleClone(Texture rVal) {
rVal.setWrap(WrapAxis.S, wrapS);
rVal.setWrap(WrapAxis.T, wrapT);
rVal.setWrap(WrapAxis.R, wrapR);
return super.createSimpleClone(rVal);
}
/**
* <code>setWrap</code> sets the wrap mode of this texture for a
* particular axis.
*
* @param axis
* the texture axis to define a wrapmode on.
* @param mode
* the wrap mode for the given axis of the texture.
* @throws IllegalArgumentException
* if axis or mode are null
*/
public void setWrap(WrapAxis axis, WrapMode mode) {
if (mode == null) {
throw new IllegalArgumentException("mode can not be null.");
} else if (axis == null) {
throw new IllegalArgumentException("axis can not be null.");
}
switch (axis) {
case S:
this.wrapS = mode;
break;
case T:
this.wrapT = mode;
break;
case R:
this.wrapR = mode;
break;
}
}
/**
* <code>setWrap</code> sets the wrap mode of this texture for all axis.
*
* @param mode
* the wrap mode for the given axis of the texture.
* @throws IllegalArgumentException
* if mode is null
*/
public void setWrap(WrapMode mode) {
if (mode == null) {
throw new IllegalArgumentException("mode can not be null.");
}
this.wrapS = mode;
this.wrapT = mode;
this.wrapR = mode;
}
/**
* <code>getWrap</code> returns the wrap mode for a given coordinate axis
* on this texture.
*
* @param axis
* the axis to return for
* @return the wrap mode of the texture.
* @throws IllegalArgumentException
* if axis is null
*/
public WrapMode getWrap(WrapAxis axis) {
switch (axis) {
case S:
return wrapS;
case T:
return wrapT;
case R:
return wrapR;
}
throw new IllegalArgumentException("invalid WrapAxis: " + axis);
}
@Override
public Type getType() {
return Type.ThreeDimensional;
}
@Override
public boolean equals(Object other) {
if (!(other instanceof Texture3D)) {
return false;
}
Texture3D that = (Texture3D) other;
if (this.getWrap(WrapAxis.S) != that.getWrap(WrapAxis.S)) {
return false;
}
if (this.getWrap(WrapAxis.T) != that.getWrap(WrapAxis.T)) {
return false;
}
if (this.getWrap(WrapAxis.R) != that.getWrap(WrapAxis.R)) {
return false;
}
return super.equals(other);
}
@Override
public void write(JmeExporter e) throws IOException {
super.write(e);
OutputCapsule capsule = e.getCapsule(this);
capsule.write(wrapS, "wrapS", WrapMode.EdgeClamp);
capsule.write(wrapT, "wrapT", WrapMode.EdgeClamp);
capsule.write(wrapR, "wrapR", WrapMode.EdgeClamp);
}
@Override
public void read(JmeImporter e) throws IOException {
super.read(e);
InputCapsule capsule = e.getCapsule(this);
wrapS = capsule.readEnum("wrapS", WrapMode.class, WrapMode.EdgeClamp);
wrapT = capsule.readEnum("wrapT", WrapMode.class, WrapMode.EdgeClamp);
wrapR = capsule.readEnum("wrapR", WrapMode.class, WrapMode.EdgeClamp);
}
}

103
engine/src/test/jme3test/texture/TestTexture3D.java
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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package jme3test.texture;
import com.jme3.app.SimpleApplication;
import com.jme3.bounding.BoundingBox;
import com.jme3.light.PointLight;
import com.jme3.material.Material;
import com.jme3.math.ColorRGBA;
import com.jme3.math.Vector3f;
import com.jme3.scene.Geometry;
import com.jme3.scene.VertexBuffer;
import com.jme3.scene.VertexBuffer.Type;
import com.jme3.scene.VertexBuffer.Usage;
import com.jme3.scene.shape.Sphere;
import com.jme3.texture.Image;
import com.jme3.texture.Image.Format;
import com.jme3.texture.Texture;
import com.jme3.texture.Texture3D;
import com.jme3.util.BufferUtils;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.FloatBuffer;
import java.util.ArrayList;
public class TestTexture3D extends SimpleApplication {
public static void main(String[] args) {
TestTexture3D app = new TestTexture3D();
app.start();
}
@Override
public void simpleInitApp() {
//mouseInput.setCursorVisible(true);
flyCam.setMoveSpeed(10);
//creating a sphere
Sphere sphere = new Sphere(32, 32, 1);
//getting the boundingbox
sphere.updateBound();
BoundingBox bb = (BoundingBox) sphere.getBound();
Vector3f min = bb.getMin(null);
float[] ext = new float[]{bb.getXExtent() * 2, bb.getYExtent() * 2, bb.getZExtent() * 2};
//we need to change the UV coordinates (the sphere is assumet to be inside the 3D image box)
sphere.clearBuffer(Type.TexCoord);
VertexBuffer vb = sphere.getBuffer(Type.Position);
FloatBuffer fb = (FloatBuffer) vb.getData();
float[] uvCoordinates = BufferUtils.getFloatArray(fb);
//now transform the coordinates so that they are in the range of <0; 1>
for (int i = 0; i < uvCoordinates.length; i += 3) {
uvCoordinates[i] = (uvCoordinates[i] - min.x) / ext[0];
uvCoordinates[i + 1] = (uvCoordinates[i + 1] - min.y) / ext[1];
uvCoordinates[i + 2] = (uvCoordinates[i + 2] - min.z) / ext[2];
}
//apply new texture coordinates
VertexBuffer uvCoordsBuffer = new VertexBuffer(Type.TexCoord);
uvCoordsBuffer.setupData(Usage.Static, 3, com.jme3.scene.VertexBuffer.Format.Float,
BufferUtils.createFloatBuffer(uvCoordinates));
sphere.setBuffer(uvCoordsBuffer);
//create geometry, and apply material and our 3D texture
Geometry g = new Geometry("sphere", sphere);
Material material = new Material(assetManager, "jme3test/texture/tex3D.j3md");
try {
Texture texture = this.getTexture();
material.setTexture("Texture", texture);
} catch (IOException e) {
e.printStackTrace();
}
g.setMaterial(material);
rootNode.attachChild(g);
//add some light so that it is visible
PointLight light = new PointLight();
light.setColor(ColorRGBA.White);
light.setPosition(new Vector3f(5, 5, 5));
light.setRadius(20);
rootNode.addLight(light);
light = new PointLight();
light.setColor(ColorRGBA.White);
light.setPosition(new Vector3f(-5, -5, -5));
light.setRadius(20);
rootNode.addLight(light);
}
/**
* This method creates a RGB8 texture with the sizes of 10x10x10 pixels.
*/
private Texture getTexture() throws IOException {
ArrayList<ByteBuffer> data = new ArrayList<ByteBuffer>(1);
ByteBuffer bb = BufferUtils.createByteBuffer(10 * 10 * 10 * 3);//all data must be inside one buffer
for (int i = 0; i < 10; ++i) {
for (int j = 0; j < 10 * 10; ++j) {
bb.put((byte) (255f*i/10f));
bb.put((byte) (255f*i/10f));
bb.put((byte) (255f));
}
}
bb.rewind();
data.add(bb);
return new Texture3D(new Image(Format.RGB8, 10, 10, 10, data));
}
}

7
engine/src/test/jme3test/texture/tex3D.frag
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uniform sampler3D m_Texture;
varying vec3 texCoord;
void main(){
gl_FragColor= texture3D(m_Texture,texCoord);
}

16
engine/src/test/jme3test/texture/tex3D.j3md
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MaterialDef My MaterialDef {
MaterialParameters {
Texture3D Texture
}
Technique {
VertexShader GLSL100: jme3test/texture/tex3D.vert
FragmentShader GLSL100: jme3test/texture/tex3D.frag
WorldParameters {
WorldViewProjectionMatrix
}
}
}

11
engine/src/test/jme3test/texture/tex3D.vert
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uniform mat4 g_WorldViewProjectionMatrix;
attribute vec3 inTexCoord;
attribute vec3 inPosition;
varying vec3 texCoord;
void main(){
gl_Position = g_WorldViewProjectionMatrix * vec4(inPosition,1.0);
texCoord=inTexCoord;
}
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