2 * Sixth 3D engine demos. Author: Svjatoslav Agejenko.
3 * This project is released under Creative Commons Zero (CC0) license.
7 package eu.svjatoslav.sixth.e3d.examples;
9 import eu.svjatoslav.sixth.e3d.geometry.Point3D;
10 import eu.svjatoslav.sixth.e3d.gui.ViewFrame;
11 import eu.svjatoslav.sixth.e3d.gui.ViewPanel;
12 import eu.svjatoslav.sixth.e3d.renderer.raster.Color;
13 import eu.svjatoslav.sixth.e3d.renderer.raster.ShapeCollection;
14 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.line.LineAppearance;
15 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.solidpolygon.SolidPolygon;
16 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.wireframe.WireframeSphere;
18 public class SphereDemo {
20 private static final double WAVE_FREQUENCY = 50d;
21 private static final double WAVE_AMPLITUDE = 50d;
22 private static final Color SQUARE_PLATE_COLOR = new Color("88F7");
24 private static void makeSquarePlate(final ShapeCollection shapeCollection,
25 final double y, final double x, final double z) {
26 final Point3D p1 = new Point3D(x, y, z);
27 final Point3D p2 = new Point3D(x + 20, y, z);
28 final Point3D p3 = new Point3D(x, y, z + 20);
29 final Point3D p4 = new Point3D(x + 20, y, z + 20);
30 final SolidPolygon polygon1 = new SolidPolygon(p1, p2, p3, SQUARE_PLATE_COLOR);
31 final SolidPolygon polygon2 = new SolidPolygon(p4, p2, p3, SQUARE_PLATE_COLOR);
32 shapeCollection.addShape(polygon1);
33 shapeCollection.addShape(polygon2);
37 * @param surfaceElevation surface total elevation
39 private static void makeWobblySurface(final ShapeCollection shapeCollection,
40 final double surfaceElevation) {
41 for (double x = -500; x < 500; x += 20)
42 for (double z = -500; z < 500; z += 20) {
44 // use Pythagorean theorem to compute distance from the center
45 final double distanceFromCenter = Math.sqrt((x * x) + (z * z));
47 double plateElevation = Math.sin(distanceFromCenter / WAVE_FREQUENCY) * WAVE_AMPLITUDE;
49 makeSquarePlate(shapeCollection, plateElevation + surfaceElevation, x,
54 public static void main(final String[] args) {
56 final ViewFrame viewFrame = new ViewFrame();
57 final ViewPanel viewPanel = viewFrame.getViewPanel();
59 final ShapeCollection geometryCollection = viewPanel
60 .getRootShapeCollection();
62 final LineAppearance appearance = new LineAppearance(4, new Color(255,
66 geometryCollection.addShape(new WireframeSphere(new Point3D(0, 0, 0),
70 makeWobblySurface(geometryCollection, 200);
71 makeWobblySurface(geometryCollection, -200);
73 viewPanel.getAvatar().setLocation(new Point3D(0, 0, -340));