Examples with PerspectiveCamera javafx.scene.PerspectiveCamera used on opensource projects

Example 41 with PerspectiveCamera

use of javafx.scene.PerspectiveCamera in project FXyzLib by Birdasaur.

the class TorusTest method start.

@Override
public void start(Stage primaryStage) throws Exception {
    Group sceneRoot = new Group();
    Scene scene = new Scene(sceneRoot, sceneWidth, sceneHeight, true, SceneAntialiasing.BALANCED);
    scene.setFill(Color.BLACK);
    // Setup camera and scatterplot cubeviewer
    camera = new PerspectiveCamera(true);
    // setup camera transform for rotational support
    cameraTransform.setTranslate(0, 0, 0);
    cameraTransform.getChildren().add(camera);
    camera.setNearClip(0.1);
    camera.setFarClip(10000.0);
    camera.setTranslateZ(-5000);
    cameraTransform.ry.setAngle(-45.0);
    cameraTransform.rx.setAngle(-10.0);
    // add a Point Light for better viewing of the grid coordinate system
    PointLight light = new PointLight(Color.WHITE);
    cameraTransform.getChildren().add(light);
    light.setTranslateX(camera.getTranslateX());
    light.setTranslateY(camera.getTranslateY());
    light.setTranslateZ(camera.getTranslateZ());
    scene.setCamera(camera);
    // Make a bunch of semi random Torusesessses(toroids?) and stuff
    Group torusGroup = new Group();
    torusGroup.getChildren().add(cameraTransform);
    for (int i = 0; i < 30; i++) {
        Random r = new Random();
        // A lot of magic numbers in here that just artificially constrain the math
        float randomRadius = (float) ((r.nextFloat() * 300) + 50);
        float randomTubeRadius = (float) ((r.nextFloat() * 100) + 1);
        int randomTubeDivisions = (int) ((r.nextFloat() * 64) + 1);
        int randomRadiusDivisions = (int) ((r.nextFloat() * 64) + 1);
        Color randomColor = new Color(r.nextDouble(), r.nextDouble(), r.nextDouble(), r.nextDouble());
        Torus torus = new Torus(randomTubeDivisions, randomRadiusDivisions, randomRadius, randomTubeRadius, randomColor);
        double translationX = Math.random() * sceneWidth * 1.95;
        if (Math.random() >= 0.5)
            translationX *= -1;
        double translationY = Math.random() * sceneWidth * 1.95;
        if (Math.random() >= 0.5)
            translationY *= -1;
        double translationZ = Math.random() * sceneWidth * 1.95;
        if (Math.random() >= 0.5)
            translationZ *= -1;
        Translate translate = new Translate(translationX, translationY, translationZ);
        Rotate rotateX = new Rotate(Math.random() * 360, Rotate.X_AXIS);
        Rotate rotateY = new Rotate(Math.random() * 360, Rotate.Y_AXIS);
        Rotate rotateZ = new Rotate(Math.random() * 360, Rotate.Z_AXIS);
        torus.getTransforms().addAll(translate, rotateX, rotateY, rotateZ);
        // torus.getTransforms().add(translate);
        torusGroup.getChildren().add(torus);
    }
    sceneRoot.getChildren().addAll(torusGroup);
    // First person shooter keyboard movement
    scene.setOnKeyPressed(event -> {
        double change = 10.0;
        // Add shift modifier to simulate "Running Speed"
        if (event.isShiftDown()) {
            change = 50.0;
        }
        // What key did the user press?
        KeyCode keycode = event.getCode();
        // Step 2c: Add Zoom controls
        if (keycode == KeyCode.W) {
            camera.setTranslateZ(camera.getTranslateZ() + change);
        }
        if (keycode == KeyCode.S) {
            camera.setTranslateZ(camera.getTranslateZ() - change);
        }
        // Step 2d:  Add Strafe controls
        if (keycode == KeyCode.A) {
            camera.setTranslateX(camera.getTranslateX() - change);
        }
        if (keycode == KeyCode.D) {
            camera.setTranslateX(camera.getTranslateX() + change);
        }
    });
    scene.setOnMousePressed((MouseEvent me) -> {
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseOldX = me.getSceneX();
        mouseOldY = me.getSceneY();
    });
    scene.setOnMouseDragged((MouseEvent me) -> {
        mouseOldX = mousePosX;
        mouseOldY = mousePosY;
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseDeltaX = (mousePosX - mouseOldX);
        mouseDeltaY = (mousePosY - mouseOldY);
        double modifier = 10.0;
        double modifierFactor = 0.1;
        if (me.isControlDown()) {
            modifier = 0.1;
        }
        if (me.isShiftDown()) {
            modifier = 50.0;
        }
        if (me.isPrimaryButtonDown()) {
            // +
            cameraTransform.ry.setAngle(((cameraTransform.ry.getAngle() + mouseDeltaX * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
            // -
            cameraTransform.rx.setAngle(((cameraTransform.rx.getAngle() - mouseDeltaY * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
        } else if (me.isSecondaryButtonDown()) {
            double z = camera.getTranslateZ();
            double newZ = z + mouseDeltaX * modifierFactor * modifier;
            camera.setTranslateZ(newZ);
        } else if (me.isMiddleButtonDown()) {
            // -
            cameraTransform.t.setX(cameraTransform.t.getX() + mouseDeltaX * modifierFactor * modifier * 0.3);
            // -
            cameraTransform.t.setY(cameraTransform.t.getY() + mouseDeltaY * modifierFactor * modifier * 0.3);
        }
    });
    primaryStage.setTitle("F(X)yz TorusTest");
    primaryStage.setScene(scene);
    primaryStage.show();
}

Example 42 with PerspectiveCamera

use of javafx.scene.PerspectiveCamera in project FXyzLib by Birdasaur.

the class Drag3DObject method loadCamera.

private void loadCamera(Scene scene) {
    // initialize camera
    camera = new PerspectiveCamera(true);
    camera.setVerticalFieldOfView(RUN_JASON);
    // setup camera transform for rotational support
    cameraTransform.setTranslate(0, 0, 0);
    cameraTransform.getChildren().add(camera);
    camera.setNearClip(0.1);
    camera.setFarClip(100000.0);
    camera.setTranslateZ(-5000);
    cameraTransform.ry.setAngle(0.0);
    cameraTransform.rx.setAngle(-45.0);
    // add a Point Light for better viewing of the grid coordinate system
    PointLight light = new PointLight(Color.GAINSBORO);
    cameraTransform.getChildren().add(light);
    cameraTransform.getChildren().add(new AmbientLight(Color.WHITE));
    light.setTranslateX(camera.getTranslateX());
    light.setTranslateY(camera.getTranslateY());
    light.setTranslateZ(camera.getTranslateZ());
    // attach camera to scene
    scene.setCamera(camera);
}

Example 43 with PerspectiveCamera

use of javafx.scene.PerspectiveCamera in project FXyzLib by Birdasaur.

the class FrustumTest method start.

@Override
public void start(Stage primaryStage) throws Exception {
    Group sceneRoot = new Group();
    Scene scene = new Scene(sceneRoot, sceneWidth, sceneHeight, true, SceneAntialiasing.BALANCED);
    scene.setFill(Color.WHITESMOKE);
    camera = new PerspectiveCamera(true);
    // setup camera transform for rotational support
    cameraTransform.setTranslate(0, 0, 0);
    cameraTransform.getChildren().add(camera);
    camera.setNearClip(0.1);
    camera.setFarClip(10000.0);
    camera.setTranslateZ(-30);
    // cameraTransform.ry.setAngle(-45.0);
    // cameraTransform.rx.setAngle(-10.0);
    // add a Point Light for better viewing of the grid coordinate system
    PointLight light = new PointLight(Color.WHITE);
    cameraTransform.getChildren().add(light);
    light.setTranslateX(camera.getTranslateX());
    light.setTranslateY(camera.getTranslateY());
    light.setTranslateZ(10 * camera.getTranslateZ());
    scene.setCamera(camera);
    rotateY = new Rotate(0, 0, 0, 0, Rotate.Y_AXIS);
    Group group = new Group();
    group.getChildren().add(cameraTransform);
    // cylinder = new PrismMesh(2,5,4);
    // ,new Point3D(-5,5,0),new Point3D(0,0,5));
    cylinder = new FrustumMesh(1, 0.2, 4, 3);
    // cylinder.setDrawMode(DrawMode.LINE);
    // SECTION TYPE
    // cylinder.setSectionType(TriangleMeshHelper.SectionType.TRIANGLE);
    // NONE
    // cylinder.setTextureModeNone(Color.ROYALBLUE);
    // IMAGE
    // cylinder.setTextureModeImage(getClass().getResource("res/netCylinder.png").toExternalForm());
    cylinder.setTextureModeVertices1D(1530, t -> t);
    // cylinder.setColorPalette(ColorPalette.GREEN);
    // DENSITY
    // cylinder.setTextureModeVertices3D(1530,p->(double)p.y);
    // cylinder.setTextureModeVertices3D(1530,p->(double)cylinder.unTransform(p).magnitude());
    // FACES
    // cylinder.setTextureModeFaces(1530);
    cylinder.getTransforms().addAll(new Rotate(0, Rotate.X_AXIS), rotateY);
    group.getChildren().add(cylinder);
    boolean showKnots = true;
    if (showKnots) {
        Sphere s = new Sphere(cylinder.getMajorRadius() / 10d);
        Point3D k0 = cylinder.getAxisOrigin();
        s.getTransforms().add(new Translate(k0.x, k0.y, k0.z));
        s.setMaterial(new PhongMaterial(Color.GREENYELLOW));
        group.getChildren().add(s);
        s = new Sphere(cylinder.getMinorRadius() / 10d);
        Point3D k3 = cylinder.getAxisEnd();
        s.getTransforms().add(new Translate(k3.x, k3.y, k3.z));
        s.setMaterial(new PhongMaterial(Color.ROSYBROWN));
        group.getChildren().add(s);
    }
    sceneRoot.getChildren().addAll(group);
    // First person shooter keyboard movement
    scene.setOnKeyPressed(event -> {
        double change = 10.0;
        // Add shift modifier to simulate "Running Speed"
        if (event.isShiftDown()) {
            change = 50.0;
        }
        // What key did the user press?
        KeyCode keycode = event.getCode();
        // Step 2c: Add Zoom controls
        if (keycode == KeyCode.W) {
            camera.setTranslateZ(camera.getTranslateZ() + change);
        }
        if (keycode == KeyCode.S) {
            camera.setTranslateZ(camera.getTranslateZ() - change);
        }
        // Step 2d:  Add Strafe controls
        if (keycode == KeyCode.A) {
            camera.setTranslateX(camera.getTranslateX() - change);
        }
        if (keycode == KeyCode.D) {
            camera.setTranslateX(camera.getTranslateX() + change);
        }
    });
    scene.setOnMousePressed((MouseEvent me) -> {
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseOldX = me.getSceneX();
        mouseOldY = me.getSceneY();
    });
    scene.setOnMouseDragged((MouseEvent me) -> {
        mouseOldX = mousePosX;
        mouseOldY = mousePosY;
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseDeltaX = (mousePosX - mouseOldX);
        mouseDeltaY = (mousePosY - mouseOldY);
        double modifier = 10.0;
        double modifierFactor = 0.1;
        if (me.isControlDown()) {
            modifier = 0.1;
        }
        if (me.isShiftDown()) {
            modifier = 50.0;
        }
        if (me.isPrimaryButtonDown()) {
            // +
            cameraTransform.ry.setAngle(((cameraTransform.ry.getAngle() + mouseDeltaX * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
            // -
            cameraTransform.rx.setAngle(((cameraTransform.rx.getAngle() - mouseDeltaY * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
        } else if (me.isSecondaryButtonDown()) {
            double z = camera.getTranslateZ();
            double newZ = z + mouseDeltaX * modifierFactor * modifier;
            camera.setTranslateZ(newZ);
        } else if (me.isMiddleButtonDown()) {
            // -
            cameraTransform.t.setX(cameraTransform.t.getX() + mouseDeltaX * modifierFactor * modifier * 0.3);
            // -
            cameraTransform.t.setY(cameraTransform.t.getY() + mouseDeltaY * modifierFactor * modifier * 0.3);
        }
    });
    primaryStage.setTitle("F(X)yz - Cylinder Test");
    primaryStage.setScene(scene);
    primaryStage.show();
    // OBJWriter writer=new OBJWriter((TriangleMesh) cylinder.getMesh(),"cylinder2");
    // //        writer.setMaterialColor(Color.AQUA);
    // //        writer.setTextureImage(getClass().getResource("res/netCylinder.png").toExternalForm());
    // writer.setTextureColors(6,ColorPalette.GREEN);
    // writer.exportMesh();
    lastEffect = System.nanoTime();
    AtomicInteger count = new AtomicInteger(0);
    AnimationTimer timerEffect = new AnimationTimer() {

        @Override
        public void handle(long now) {
            if (now > lastEffect + 100_000_000l) {
                // <=1/6d)?1d:0d;
                func = t -> Math.pow(Math.sin(8d * Math.PI * (10d * (1 - t.doubleValue()) + count.get() % 11) / 20d), 6);
                cylinder.setFunction(func);
                // mapBez.values().forEach(b->b.setDensity(dens));
                count.getAndIncrement();
                lastEffect = now;
            }
        }
    };
    timerEffect.start();
}

Example 44 with PerspectiveCamera

use of javafx.scene.PerspectiveCamera in project FXyzLib by Birdasaur.

the class Function2DPlotTest method start.

@Override
public void start(Stage primaryStage) throws Exception {
    Group sceneRoot = new Group();
    Scene scene = new Scene(sceneRoot, sceneWidth, sceneHeight, true, SceneAntialiasing.BALANCED);
    scene.setFill(Color.WHITESMOKE);
    camera = new PerspectiveCamera(true);
    // setup camera transform for rotational support
    cameraTransform.setTranslate(0, 0, 0);
    cameraTransform.getChildren().add(camera);
    camera.setNearClip(0.1);
    camera.setFarClip(10000.0);
    camera.setTranslateZ(-20);
    cameraTransform.ry.setAngle(-45.0);
    cameraTransform.rx.setAngle(-30.0);
    // add a Point Light for better viewing of the grid coordinate system
    PointLight light = new PointLight(Color.WHITE);
    cameraTransform.getChildren().add(light);
    // cameraTransform.getChildren().add(new AmbientLight(Color.WHITE));
    light.setTranslateX(camera.getTranslateX());
    light.setTranslateY(camera.getTranslateY());
    light.setTranslateZ(camera.getTranslateZ());
    scene.setCamera(camera);
    rotateY = new Rotate(0, 0, 0, 0, Rotate.Y_AXIS);
    Group group = new Group();
    group.getChildren().add(cameraTransform);
    surface = new SurfacePlotMesh(p -> Math.sin(p.magnitude() + 0.00000000000000001) / (p.magnitude() + 0.00000000000000001), 10, 10, 10, 10, 5d);
    // PhongMaterial matTorus = new PhongMaterial(Color.FIREBRICK);
    // torus.setMaterial(matTorus);
    // surface.setDrawMode(DrawMode.LINE);
    surface.setCullFace(CullFace.NONE);
    // NONE
    // surface.setTextureModeNone(Color.FORESTGREEN);
    // IMAGE
    // torus.setTextureModeImage(getClass().getResource("res/grid1.png").toExternalForm());
    // banner.setTextureModeImage(getClass().getResource("res/Duke3DprogressionSmall.jpg").toExternalForm());
    // PATTERN
    surface.setTextureModePattern(CarbonPatterns.CARBON_KEVLAR, 1.0d);
    // DENSITY
    // surface.setTextureModeVertices3D(1530,dens);
    // FACES
    // torus.setTextureModeFaces(256*256);
    surface.getTransforms().addAll(new Rotate(0, Rotate.X_AXIS), rotateY);
    group.getChildren().addAll(surface);
    sceneRoot.getChildren().addAll(group);
    // First person shooter keyboard movement
    scene.setOnKeyPressed(event -> {
        double change = 10.0;
        // Add shift modifier to simulate "Running Speed"
        if (event.isShiftDown()) {
            change = 50.0;
        }
        // What key did the user press?
        KeyCode keycode = event.getCode();
        // Step 2c: Add Zoom controls
        if (keycode == KeyCode.W) {
            camera.setTranslateZ(camera.getTranslateZ() + change);
        }
        if (keycode == KeyCode.S) {
            camera.setTranslateZ(camera.getTranslateZ() - change);
        }
        // Step 2d:  Add Strafe controls
        if (keycode == KeyCode.A) {
            camera.setTranslateX(camera.getTranslateX() - change);
        }
        if (keycode == KeyCode.D) {
            camera.setTranslateX(camera.getTranslateX() + change);
        }
    });
    scene.setOnMousePressed((MouseEvent me) -> {
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseOldX = me.getSceneX();
        mouseOldY = me.getSceneY();
    });
    scene.setOnMouseDragged((MouseEvent me) -> {
        mouseOldX = mousePosX;
        mouseOldY = mousePosY;
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseDeltaX = (mousePosX - mouseOldX);
        mouseDeltaY = (mousePosY - mouseOldY);
        double modifier = 10.0;
        double modifierFactor = 0.1;
        if (me.isControlDown()) {
            modifier = 0.1;
        }
        if (me.isShiftDown()) {
            modifier = 50.0;
        }
        if (me.isPrimaryButtonDown()) {
            // +
            cameraTransform.ry.setAngle(((cameraTransform.ry.getAngle() + mouseDeltaX * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
            // -
            cameraTransform.rx.setAngle(((cameraTransform.rx.getAngle() - mouseDeltaY * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
        } else if (me.isSecondaryButtonDown()) {
            double z = camera.getTranslateZ();
            double newZ = z + mouseDeltaX * modifierFactor * modifier;
            camera.setTranslateZ(newZ);
        } else if (me.isMiddleButtonDown()) {
            // -
            cameraTransform.t.setX(cameraTransform.t.getX() + mouseDeltaX * modifierFactor * modifier * 0.3);
            // -
            cameraTransform.t.setY(cameraTransform.t.getY() + mouseDeltaY * modifierFactor * modifier * 0.3);
        }
    });
    lastEffect = System.nanoTime();
    AtomicInteger count = new AtomicInteger();
    AnimationTimer timerEffect = new AnimationTimer() {

        @Override
        public void handle(long now) {
            if (now > lastEffect + 1_000_000_000l) {
                // dens = p->(float)(p.x*Math.cos(count.get()%100d*2d*Math.PI/50d)+p.y*Math.sin(count.get()%100d*2d*Math.PI/50d));
                // torus.setDensity(dens);
                // if(count.get()%100<50){
                // torus.setDrawMode(DrawMode.LINE);
                // } else {
                // torus.setDrawMode(DrawMode.FILL);
                // }
                // spring.setLength(100+20*(count.get()%10));
                // torus.setColors((int)Math.pow(2,count.get()%16));
                // torus.setMajorRadius(500+100*(count.get()%10));
                // torus.setMinorRadius(150+10*(count.get()%10));
                // torus.setPatternScale(1d+(count.get()%10)*5d);
                count.getAndIncrement();
                lastEffect = now;
            }
        }
    };
    primaryStage.setTitle("F(X)yz - Surface Plot 2D");
    primaryStage.setScene(scene);
    primaryStage.show();
// timerEffect.start();
}

Example 45 with PerspectiveCamera

use of javafx.scene.PerspectiveCamera in project FXyzLib by Birdasaur.

the class KnotTest method start.

@Override
public void start(Stage primaryStage) throws Exception {
    Group sceneRoot = new Group();
    Scene scene = new Scene(sceneRoot, sceneWidth, sceneHeight, true, SceneAntialiasing.BALANCED);
    scene.setFill(Color.WHEAT);
    camera = new PerspectiveCamera(true);
    // setup camera transform for rotational support
    cameraTransform.setTranslate(0, 0, 0);
    cameraTransform.getChildren().add(camera);
    camera.setNearClip(0.1);
    camera.setFarClip(10000.0);
    camera.setTranslateZ(-30);
    cameraTransform.ry.setAngle(-45.0);
    cameraTransform.rx.setAngle(-10.0);
    // add a Point Light for better viewing of the grid coordinate system
    PointLight light = new PointLight(Color.WHITE);
    cameraTransform.getChildren().add(light);
    cameraTransform.getChildren().add(new AmbientLight(Color.WHITE));
    light.setTranslateX(camera.getTranslateX());
    light.setTranslateY(camera.getTranslateY());
    light.setTranslateZ(camera.getTranslateZ());
    scene.setCamera(camera);
    rotateY = new Rotate(0, 0, 0, 0, Rotate.Y_AXIS);
    Group group = new Group();
    group.getChildren().add(cameraTransform);
    knot = new KnotMesh(2d, 1d, 0.4d, 2d, 3d, 1000, 60, 0, 0);
    knot.setDrawMode(DrawMode.LINE);
    // knot.setCullFace(CullFace.NONE);
    knot.setSectionType(SectionType.TRIANGLE);
    // NONE
    // knot.setTextureModeNone(Color.BROWN);
    // IMAGE
    // knot.setTextureModeImage(getClass().getResource("res/LaminateSteel.jpg").toExternalForm());
    // PATTERN
    // knot.setTextureModePattern(3d);
    // FUNCTION
    // knot.setTextureModeVertices1D(1530,t->knot.getTau(t));
    knot.setTextureModeVertices1D(ColorPalette.GREEN, 8, t -> knot.getTau(t.doubleValue()));
    // DENSITY
    // knot.setTextureModeVertices3D(256*256,dens);
    // FACES
    // knot.setTextureModeFaces(256*256);
    knot.getTransforms().addAll(new Rotate(0, Rotate.X_AXIS), rotateY);
    group.getChildren().add(knot);
    sceneRoot.getChildren().addAll(group);
    // First person shooter keyboard movement
    scene.setOnKeyPressed(event -> {
        double change = 10.0;
        // Add shift modifier to simulate "Running Speed"
        if (event.isShiftDown()) {
            change = 50.0;
        }
        // What key did the user press?
        KeyCode keycode = event.getCode();
        // Step 2c: Add Zoom controls
        if (keycode == KeyCode.W) {
            camera.setTranslateZ(camera.getTranslateZ() + change);
        }
        if (keycode == KeyCode.S) {
            camera.setTranslateZ(camera.getTranslateZ() - change);
        }
        // Step 2d:  Add Strafe controls
        if (keycode == KeyCode.A) {
            camera.setTranslateX(camera.getTranslateX() - change);
        }
        if (keycode == KeyCode.D) {
            camera.setTranslateX(camera.getTranslateX() + change);
        }
    });
    scene.setOnMousePressed((MouseEvent me) -> {
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseOldX = me.getSceneX();
        mouseOldY = me.getSceneY();
    });
    scene.setOnMouseDragged((MouseEvent me) -> {
        mouseOldX = mousePosX;
        mouseOldY = mousePosY;
        mousePosX = me.getSceneX();
        mousePosY = me.getSceneY();
        mouseDeltaX = (mousePosX - mouseOldX);
        mouseDeltaY = (mousePosY - mouseOldY);
        double modifier = 10.0;
        double modifierFactor = 0.1;
        if (me.isControlDown()) {
            modifier = 0.1;
        }
        if (me.isShiftDown()) {
            modifier = 50.0;
        }
        if (me.isPrimaryButtonDown()) {
            // +
            cameraTransform.ry.setAngle(((cameraTransform.ry.getAngle() + mouseDeltaX * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
            // -
            cameraTransform.rx.setAngle(((cameraTransform.rx.getAngle() - mouseDeltaY * modifierFactor * modifier * 2.0) % 360 + 540) % 360 - 180);
        } else if (me.isSecondaryButtonDown()) {
            double z = camera.getTranslateZ();
            double newZ = z + mouseDeltaX * modifierFactor * modifier;
            camera.setTranslateZ(newZ);
        } else if (me.isMiddleButtonDown()) {
            // -
            cameraTransform.t.setX(cameraTransform.t.getX() + mouseDeltaX * modifierFactor * modifier * 0.3);
            // -
            cameraTransform.t.setY(cameraTransform.t.getY() + mouseDeltaY * modifierFactor * modifier * 0.3);
        }
    });
    lastEffect = System.nanoTime();
    AtomicInteger count = new AtomicInteger();
    AnimationTimer timerEffect = new AnimationTimer() {

        @Override
        public void handle(long now) {
            if (now > lastEffect + 100_000_000l) {
                // Point3D loc = knot.getPositionAt((count.get()%100)*2d*Math.PI/100d);
                // Point3D dir = knot.getTangentAt((count.get()%100)*2d*Math.PI/100d);
                // cameraTransform.t.setX(loc.x);
                // cameraTransform.t.setY(loc.y);
                // cameraTransform.t.setZ(-loc.z);
                // javafx.geometry.Point3D axis = cameraTransform.rx.getAxis();
                // javafx.geometry.Point3D cross = axis.crossProduct(-dir.x,-dir.y,-dir.z);
                // double angle = axis.angle(-dir.x,-dir.y,-dir.z);
                // cameraTransform.rx.setAngle(angle);
                // cameraTransform.rx.setAxis(new javafx.geometry.Point3D(cross.getX(),-cross.getY(),cross.getZ()));
                // dens = p->(float)(p.x*Math.cos(count.get()%100d*2d*Math.PI/50d)+p.y*Math.sin(count.get()%100d*2d*Math.PI/50d));
                // knot.setDensity(dens);
                // knot.setP(1+(count.get()%5));
                // knot.setQ(2+(count.get()%15));
                // if(count.get()%100<50){
                // knot.setDrawMode(DrawMode.LINE);
                // } else {
                // knot.setDrawMode(DrawMode.FILL);
                // }
                // knot.setColors((int)Math.pow(2,count.get()%16));
                // knot.setMajorRadius(0.5d+(count.get()%10));
                // knot.setMinorRadius(2d+(count.get()%60));
                // knot.setWireRadius(0.1d+(count.get()%6)/10d);
                // knot.setPatternScale(1d+(count.get()%10)*3d);
                knot.setSectionType(SectionType.values()[count.get() % SectionType.values().length]);
                count.getAndIncrement();
                lastEffect = now;
            }
        }
    };
    primaryStage.setTitle("F(X)yz - Knots");
    primaryStage.setScene(scene);
    primaryStage.show();
    OBJWriter writer = new OBJWriter((TriangleMesh) knot.getMesh(), "knot");
    writer.setMaterialColor(Color.BROWN);
    writer.exportMesh();
    timerEffect.start();
}