/**
* Copyright (c) 2008-2012 Ardor Labs, Inc.
*
* This file is part of Ardor3D.
*
* Ardor3D is free software: you can redistribute it and/or modify it
* under the terms of its license which may be found in the accompanying
* LICENSE file or at <http://www.ardor3d.com/LICENSE>.
*/
package com.ardor3d.example.renderer;
import com.ardor3d.example.ExampleBase;
import com.ardor3d.example.Purpose;
import com.ardor3d.framework.Canvas;
import com.ardor3d.image.Image;
import com.ardor3d.image.Texture;
import com.ardor3d.image.Texture.MagnificationFilter;
import com.ardor3d.image.Texture.MinificationFilter;
import com.ardor3d.image.Texture2D;
import com.ardor3d.image.util.GeneratedImageFactory;
import com.ardor3d.input.MouseButton;
import com.ardor3d.input.MouseState;
import com.ardor3d.input.logical.InputTrigger;
import com.ardor3d.input.logical.MouseButtonReleasedCondition;
import com.ardor3d.input.logical.TriggerAction;
import com.ardor3d.input.logical.TwoInputStates;
import com.ardor3d.intersection.PickResults;
import com.ardor3d.math.ColorRGBA;
import com.ardor3d.math.Ray3;
import com.ardor3d.math.Vector2;
import com.ardor3d.math.functions.Function3D;
import com.ardor3d.math.functions.Functions;
import com.ardor3d.math.functions.MandelbrotFunction3D;
import com.ardor3d.math.type.ReadOnlyColorRGBA;
import com.ardor3d.renderer.Camera;
import com.ardor3d.renderer.queue.RenderBucketType;
import com.ardor3d.renderer.state.TextureState;
import com.ardor3d.scenegraph.hint.LightCombineMode;
import com.ardor3d.scenegraph.shape.Quad;
import com.ardor3d.util.TextureKey;
/**
* Illustrates the MandelbrotFunction3D class, which allow for procedural creation of the famous Mandelbrot set.
*/
@Purpose(htmlDescriptionKey = "com.ardor3d.example.renderer.MandelbrotExplorerExample", //
thumbnailPath = "com/ardor3d/example/media/thumbnails/renderer_MandelbrotExplorerExample.jpg", //
maxHeapMemory = 64)
public class MandelbrotExplorerExample extends ExampleBase {
private final Quad display = new Quad("display");
private final Texture tex = new Texture2D();
private final Vector2 trans = new Vector2(-.7, 0);
private final Vector2 scale = new Vector2(1.5, 1.5);
private float iterations = 80;
private final ReadOnlyColorRGBA[] colors = new ReadOnlyColorRGBA[256];
public static void main(final String[] args) {
start(MandelbrotExplorerExample.class);
}
@Override
protected void initExample() {
_canvas.setTitle("Ardor3D - Mandelbrot Explorer");
// Set up our view
final Camera cam = _canvas.getCanvasRenderer().getCamera();
display.resize(cam.getWidth(), cam.getHeight());
display.setTranslation(cam.getWidth() / 2, cam.getHeight() / 2, 0);
display.getSceneHints().setLightCombineMode(LightCombineMode.Off);
display.getSceneHints().setRenderBucketType(RenderBucketType.Ortho);
_root.attachChild(display);
// set up our color map
colors[0] = ColorRGBA.BLUE;
colors[30] = ColorRGBA.YELLOW;
colors[70] = ColorRGBA.BLUE;
colors[140] = ColorRGBA.WHITE;
colors[220] = ColorRGBA.BLUE;
colors[255] = ColorRGBA.BLACK;
GeneratedImageFactory.fillInColorTable(colors);
// set up the texture
final TextureState ts = new TextureState();
ts.setTexture(tex);
_root.setRenderState(ts);
updateTexture();
}
@Override
public PickResults doPick(final Ray3 pickRay) {
return null;
}
@Override
protected void registerInputTriggers() {
super.registerInputTriggers();
_logicalLayer.registerTrigger(new InputTrigger(new MouseButtonReleasedCondition(MouseButton.LEFT),
new TriggerAction() {
public void perform(final Canvas source, final TwoInputStates inputState, final double tpf) {
// zoom in
final MouseState mouse = inputState.getCurrent().getMouseState();
final Vector2 add = new Vector2(mouse.getX() - .5 * display.getWidth(), mouse.getY() - .5
* display.getHeight());
add.multiplyLocal(scale).multiplyLocal(
new Vector2(2.0 / display.getWidth(), 2.0 / display.getHeight()));
trans.addLocal(add.getX(), add.getY());
scale.multiplyLocal(0.5);
updateTexture();
iterations *= 1.1f;
}
}));
_logicalLayer.registerTrigger(new InputTrigger(new MouseButtonReleasedCondition(MouseButton.RIGHT),
new TriggerAction() {
public void perform(final Canvas source, final TwoInputStates inputState, final double tpf) {
// zoom out
final MouseState mouse = inputState.getCurrent().getMouseState();
final Vector2 add = new Vector2(mouse.getX() - .5 * display.getWidth(), mouse.getY() - .5
* display.getHeight());
add.multiplyLocal(scale).multiplyLocal(
new Vector2(2.0 / display.getWidth(), 2.0 / display.getHeight()));
trans.addLocal(add.getX(), add.getY());
scale.multiplyLocal(1 / .5);
updateTexture();
iterations /= 1.1f;
}
}));
}
private void updateTexture() {
// Build up our function
final MandelbrotFunction3D mandelBase = new MandelbrotFunction3D(Math.round(iterations));
final Function3D translatedMandel = Functions.translateInput(mandelBase, trans.getX(), trans.getY(), 0);
final Function3D finalMandel = Functions.scaleInput(translatedMandel, scale.getX(), scale.getY(), 1);
final Camera cam = _canvas.getCanvasRenderer().getCamera();
Image img = GeneratedImageFactory.createLuminance8Image(finalMandel, cam.getWidth(), cam.getHeight(), 1);
img = GeneratedImageFactory.createColorImageFromLuminance8(img, false, colors);
tex.setImage(img);
tex.setTextureKey(TextureKey.getRTTKey(MinificationFilter.Trilinear));
tex.setMagnificationFilter(MagnificationFilter.Bilinear);
tex.setMinificationFilter(MinificationFilter.Trilinear);
}
}