Examples with BoundingSphere com.jme3.bounding.BoundingSphere used on opensource projects

Example 26 with BoundingSphere

use of com.jme3.bounding.BoundingSphere in project jmonkeyengine by jMonkeyEngine.

the class BIHTree method collideWithBoundingVolume.

private int collideWithBoundingVolume(BoundingVolume bv, Matrix4f worldMatrix, CollisionResults results) {
    BoundingBox bbox;
    if (bv instanceof BoundingSphere) {
        BoundingSphere sphere = (BoundingSphere) bv;
        bbox = new BoundingBox(bv.getCenter().clone(), sphere.getRadius(), sphere.getRadius(), sphere.getRadius());
    } else if (bv instanceof BoundingBox) {
        bbox = new BoundingBox((BoundingBox) bv);
    } else {
        throw new UnsupportedCollisionException("BoundingVolume:" + bv);
    }
    bbox.transform(worldMatrix.invert(), bbox);
    return root.intersectWhere(bv, bbox, worldMatrix, this, results);
}

Example 27 with BoundingSphere

use of com.jme3.bounding.BoundingSphere in project jmonkeyengine by jMonkeyEngine.

the class BoundingCollisionTest method testSphereTriangleCollision.

@Test
public void testSphereTriangleCollision() {
    BoundingSphere sphere = new BoundingSphere(1, Vector3f.ZERO);
    Geometry geom = new Geometry("geom", new Quad(1, 1));
    checkCollision(sphere, geom, 2);
    // The box touches the edges of the triangles.
    sphere.setCenter(new Vector3f(-1f + FastMath.ZERO_TOLERANCE, 0, 0));
    checkCollision(sphere, geom, 2);
    // Move it slightly farther..
    sphere.setCenter(new Vector3f(-1f - FastMath.ZERO_TOLERANCE, 0, 0));
    checkCollision(sphere, geom, 0);
    // Parallel triangle / box side, touching
    sphere.setCenter(new Vector3f(0, 0, -1f));
    checkCollision(sphere, geom, 2);
    // Not touching
    sphere.setCenter(new Vector3f(0, 0, -1f - FastMath.ZERO_TOLERANCE));
    checkCollision(sphere, geom, 0);
    // Test collisions only against one of the triangles
    sphere.setCenter(new Vector3f(-0.9f, 1.2f, 0f));
    checkCollision(sphere, geom, 1);
    sphere.setCenter(new Vector3f(1.2f, -0.9f, 0f));
    checkCollision(sphere, geom, 1);
}

Example 28 with BoundingSphere

use of com.jme3.bounding.BoundingSphere in project jmonkeyengine by jMonkeyEngine.

the class LightFilterTest method testAmbientFiltering.

@Test
public void testAmbientFiltering() {
    geom.addLight(new AmbientLight());
    // Ambient lights must never be filtered
    checkFilteredLights(1);
    // Test for bounding Sphere
    geom.setModelBound(new BoundingSphere(0.5f, Vector3f.ZERO));
    // Ambient lights must never be filtered
    checkFilteredLights(1);
}

Example 29 with BoundingSphere

use of com.jme3.bounding.BoundingSphere in project jmonkeyengine by jMonkeyEngine.

the class LightFilterTest method testPointFiltering.

@Test
public void testPointFiltering() {
    PointLight pl = new PointLight(Vector3f.ZERO);
    geom.addLight(pl);
    // Infinite point lights must never be filtered
    checkFilteredLights(1);
    // Light at origin does not intersect geom which is at Z=10
    pl.setRadius(1);
    checkFilteredLights(0);
    // Put it closer to geom, the very edge of the sphere touches the box.
    // Still not considered an intersection though.
    pl.setPosition(new Vector3f(0, 0, 8f));
    checkFilteredLights(0);
    // And more close - now its an intersection.
    pl.setPosition(new Vector3f(0, 0, 8f + FastMath.ZERO_TOLERANCE));
    checkFilteredLights(1);
    // Move the geometry away
    geom.move(0, 0, FastMath.ZERO_TOLERANCE);
    checkFilteredLights(0);
    // Test if the algorithm converts the sphere 
    // to a box before testing the collision (incorrect)
    float sqrt3 = FastMath.sqrt(3);
    pl.setPosition(new Vector3f(2, 2, 8));
    pl.setRadius(sqrt3);
    checkFilteredLights(0);
    // Make it a wee bit larger.
    pl.setRadius(sqrt3 + FastMath.ZERO_TOLERANCE);
    checkFilteredLights(1);
    // Rotate the camera so it is up, light is outside frustum.
    cam.lookAtDirection(Vector3f.UNIT_Y, Vector3f.UNIT_Y);
    checkFilteredLights(0);
    // ==================================
    // Tests for bounding Sphere
    geom.setModelBound(new BoundingSphere(1f, Vector3f.ZERO));
    geom.setLocalTranslation(0, 0, 2);
    pl.setPosition(new Vector3f(0, 0, 2f));
    // Infinite point lights must never be filtered
    pl.setRadius(0);
    checkFilteredLights(1);
    pl.setRadius(1f);
    // Put the light at the very close to the geom,
    // the very edge of the sphere touches the other bounding sphere
    // Still not considered an intersection though.
    pl.setPosition(new Vector3f(0, 0, 0));
    checkFilteredLights(0);
    // And more close - now its an intersection.
    pl.setPosition(new Vector3f(0, 0, 0f + FastMath.ZERO_TOLERANCE));
    checkFilteredLights(1);
    geom.setLocalTranslation(0, 0, 0);
    // In this case its an intersection for pointLight v. box
    // But not for pointLight v. sphere
    // Vector3f(0, 0.5f, 0.5f).normalize().mult(2) ~ >= (0.0, 1.4142135, 1.4142135)
    //pl.setPosition(new Vector3f(0, 0.5f, 0.5f).normalizeLocal().multLocal(2 + FastMath.ZERO_TOLERANCE));
    pl.setPosition(new Vector3f(0f, 1.4142135f, 1.4142135f).multLocal(1 + FastMath.ZERO_TOLERANCE));
    checkFilteredLights(0);
    // Make the distance a wee bit closer, now its an intersection
    //pl.setPosition(new Vector3f(0, 0.5f, 0.5f).normalizeLocal().multLocal(2 - FastMath.ZERO_TOLERANCE));
    pl.setPosition(new Vector3f(0f, 1.4142135f, 1.4142135f).multLocal(1 - FastMath.ZERO_TOLERANCE));
    checkFilteredLights(1);
    // it's a point light, also test for the other corner
    pl.setPosition(new Vector3f(0f, -1.4142135f, -1.4142135f).multLocal(1 - FastMath.ZERO_TOLERANCE));
    checkFilteredLights(0);
}

Example 30 with BoundingSphere

use of com.jme3.bounding.BoundingSphere in project TeachingInSimulation by ScOrPiOzzy.

the class ElecCompState method initializeLocal.

@Override
protected void initializeLocal() {
    // 认知模块的根节点
    root = new Node(ROOT_NAME);
    LOG.debug("创建元器件状态机的根节点{}", root.getName());
    rootNode.attachChild(root);
    setupLight();
    stateManager.attach(chaserState = new MyCameraState());
    // //		PBR indirect lighting
    // final EnvironmentCamera envCam = new EnvironmentCamera(256, new Vector3f(0, 3f, 0));
    // stateManager.attach(envCam);
    // 
    // stateManager.attach(new BreakPointState((a) -> {
    // LightProbe probe = LightProbeFactory.makeProbe(stateManager.getState(EnvironmentCamera.class), rootNode, new JobProgressAdapter<LightProbe>() {
    // @Override
    // public void done(LightProbe result) {
    // //					加载结束
    // Platform.runLater(() -> SpringUtil.getBean(PageController.class).hideLoading());
    // }
    // });
    // ((BoundingSphere) probe.getBounds()).setRadius(100);
    // rootNode.addLight(probe);
    // }));
    // 加载结束
    Platform.runLater(() -> SpringUtil.getBean(PageController.class).hideLoading());
}