如何像 JavaFX 2.0 演示中那样创建视频墙？
How to create a Video Wall like in the JavaFX 2.0 demo?
如何像此处的 JavaFX 2.0 演示那样创建视频墙：
https://www.youtube.com/watch?v=UXSmJYFrulY#t=411
首先，它不一定是视频，也可以是图片。我想要的只是像视频中那样放置节点，i。 e.呈圆柱体或球体内部的弯曲形状。
或者在某处可以找到该演示的源代码？
非常感谢。
对我来说，这似乎是创建网格的问题，或者 "Mesh" 从 ImageView 中创建。
然后将所有视口映射到要显示的图像。
例如，Here 是使用这种方法实现 3D 的天空盒。
请注意，这只是一个简单的立方体。
图片的设置类似于this，虽然我把它分成了6张单独的图片。
如果你想用视频，我推荐你用VLCJ，
他们有 JavaFX 设置示例 Here
为此，您将对 WritableImage(s)
应用相同的原则
////////////////////////////////////////// //////////////////////////////////////////////// //////////////////////////////////////////////// /////////
我添加了一些东西供你玩...
/**
* A self initializing First Person Shooter camera
*
* @author Jason Pollastrini aka jdub1581
*/
public class SimpleFPSCamera extends Parent {
public SimpleFPSCamera() {
initialize();
}
private void update() {
updateControls();
}
private void updateControls() {
if (fwd && !back) {
moveForward();
}
if (strafeL) {
strafeLeft();
}
if (strafeR) {
strafeRight();
}
if (back && !fwd) {
moveBack();
}
if (up && !down) {
moveUp();
}
if (down && !up) {
moveDown();
}
}
/*==========================================================================
Initialization
*/
private final Group root = new Group();
private final Affine affine = new Affine();
private final Translate t = new Translate(0, 0, 0);
private final Rotate rotateX = new Rotate(0, Rotate.X_AXIS),
rotateY = new Rotate(0, Rotate.Y_AXIS),
rotateZ = new Rotate(0, Rotate.Z_AXIS);
private boolean fwd, strafeL, strafeR, back, up, down, shift;
private double mouseSpeed = 1.0, mouseModifier = 0.1;
private double moveSpeed = 10.0;
private double mousePosX;
private double mousePosY;
private double mouseOldX;
private double mouseOldY;
private double mouseDeltaX;
private double mouseDeltaY;
private void initialize() {
getChildren().add(root);
getTransforms().addAll(affine);
initializeCamera();
startUpdateThread();
}
public void loadControlsForSubScene(SubScene scene) {
sceneProperty().addListener(l -> {
if (getScene() != null) {
getScene().addEventHandler(KeyEvent.ANY, ke -> {
if (ke.getEventType() == KeyEvent.KEY_PRESSED) {
switch (ke.getCode()) {
case Q:
up = true;
break;
case E:
down = true;
break;
case W:
fwd = true;
break;
case S:
back = true;
break;
case A:
strafeL = true;
break;
case D:
strafeR = true;
break;
case SHIFT:
shift = true;
moveSpeed = 20;
break;
}
} else if (ke.getEventType() == KeyEvent.KEY_RELEASED) {
switch (ke.getCode()) {
case Q:
up = false;
break;
case E:
down = false;
break;
case W:
fwd = false;
break;
case S:
back = false;
break;
case A:
strafeL = false;
break;
case D:
strafeR = false;
break;
case SHIFT:
moveSpeed = 10;
shift = false;
break;
}
}
ke.consume();
});
}
});
scene.addEventHandler(MouseEvent.ANY, me -> {
if (me.getEventType().equals(MouseEvent.MOUSE_PRESSED)) {
mousePosX = me.getSceneX();
mousePosY = me.getSceneY();
mouseOldX = me.getSceneX();
mouseOldY = me.getSceneY();
} else if (me.getEventType().equals(MouseEvent.MOUSE_DRAGGED)) {
mouseOldX = mousePosX;
mouseOldY = mousePosY;
mousePosX = me.getSceneX();
mousePosY = me.getSceneY();
mouseDeltaX = (mousePosX - mouseOldX);
mouseDeltaY = (mousePosY - mouseOldY);
mouseSpeed = 1.0;
mouseModifier = 0.1;
if (me.isPrimaryButtonDown()) {
if (me.isControlDown()) {
mouseSpeed = 0.1;
}
if (me.isShiftDown()) {
mouseSpeed = 1.0;
}
t.setX(getPosition().getX());
t.setY(getPosition().getY());
t.setZ(getPosition().getZ());
affine.setToIdentity();
rotateY.setAngle(
Utils.clamp(-360, ((rotateY.getAngle() + mouseDeltaX * (mouseSpeed * mouseModifier)) % 360 + 540) % 360 - 180, 360)
); // horizontal
rotateX.setAngle(
Utils.clamp(-45, ((rotateX.getAngle() - mouseDeltaY * (mouseSpeed * mouseModifier)) % 360 + 540) % 360 - 180, 35)
); // vertical
affine.prepend(t.createConcatenation(rotateY.createConcatenation(rotateX)));
} else if (me.isSecondaryButtonDown()) {
/*
init zoom?
*/
} else if (me.isMiddleButtonDown()) {
/*
init panning?
*/
}
}
});
scene.addEventHandler(ScrollEvent.ANY, se -> {
if (se.getEventType().equals(ScrollEvent.SCROLL_STARTED)) {
} else if (se.getEventType().equals(ScrollEvent.SCROLL)) {
} else if (se.getEventType().equals(ScrollEvent.SCROLL_FINISHED)) {
}
});
}
public void loadControlsForScene(Scene scene) {
scene.addEventHandler(KeyEvent.ANY, ke -> {
if (ke.getEventType() == KeyEvent.KEY_PRESSED) {
switch (ke.getCode()) {
case Q:
up = true;
break;
case E:
down = true;
break;
case W:
fwd = true;
break;
case S:
back = true;
break;
case A:
strafeL = true;
break;
case D:
strafeR = true;
break;
case SHIFT:
shift = true;
moveSpeed = 20;
break;
}
} else if (ke.getEventType() == KeyEvent.KEY_RELEASED) {
switch (ke.getCode()) {
case Q:
up = false;
break;
case E:
down = false;
break;
case W:
fwd = false;
break;
case S:
back = false;
break;
case A:
strafeL = false;
break;
case D:
strafeR = false;
break;
case SHIFT:
moveSpeed = 10;
shift = false;
break;
}
}
ke.consume();
});
scene.addEventHandler(MouseEvent.ANY, me -> {
if (me.getEventType().equals(MouseEvent.MOUSE_PRESSED)) {
mousePosX = me.getSceneX();
mousePosY = me.getSceneY();
mouseOldX = me.getSceneX();
mouseOldY = me.getSceneY();
} else if (me.getEventType().equals(MouseEvent.MOUSE_DRAGGED)) {
mouseOldX = mousePosX;
mouseOldY = mousePosY;
mousePosX = me.getSceneX();
mousePosY = me.getSceneY();
mouseDeltaX = (mousePosX - mouseOldX);
mouseDeltaY = (mousePosY - mouseOldY);
mouseSpeed = 1.0;
mouseModifier = 0.1;
if (me.isPrimaryButtonDown()) {
if (me.isControlDown()) {
mouseSpeed = 0.1;
}
if (me.isShiftDown()) {
mouseSpeed = 1.0;
}
t.setX(getPosition().getX());
t.setY(getPosition().getY());
t.setZ(getPosition().getZ());
affine.setToIdentity();
rotateY.setAngle(
Utils.clamp(-360, ((rotateY.getAngle() + mouseDeltaX * (mouseSpeed * mouseModifier)) % 360 + 540) % 360 - 180, 360)
); // horizontal
rotateX.setAngle(
Utils.clamp(-45, ((rotateX.getAngle() - mouseDeltaY * (mouseSpeed * mouseModifier)) % 360 + 540) % 360 - 180, 35)
); // vertical
affine.prepend(t.createConcatenation(rotateY.createConcatenation(rotateX)));
} else if (me.isSecondaryButtonDown()) {
/*
init zoom?
*/
} else if (me.isMiddleButtonDown()) {
/*
init panning?
*/
}
}
});
scene.addEventHandler(ScrollEvent.ANY, se -> {
if (se.getEventType().equals(ScrollEvent.SCROLL_STARTED)) {
} else if (se.getEventType().equals(ScrollEvent.SCROLL)) {
} else if (se.getEventType().equals(ScrollEvent.SCROLL_FINISHED)) {
}
});
}
private void initializeCamera() {
getCamera().setNearClip(0.1);
getCamera().setFarClip(100000);
getCamera().setFieldOfView(42);
getCamera().setVerticalFieldOfView(true);
//getCamera().getTransforms().add(new Rotate(180, Rotate.Z_AXIS));
root.getChildren().add(getCamera());
}
private void startUpdateThread() {
new AnimationTimer() {
@Override
public void handle(long now) {
update();
}
}.start();
}
/*==========================================================================
Movement
*/
private void moveForward() {
affine.setTx(getPosition().getX() + moveSpeed * getN().getX());
affine.setTy(getPosition().getY() + moveSpeed * getN().getY());
affine.setTz(getPosition().getZ() + moveSpeed * getN().getZ());
}
private void strafeLeft() {
affine.setTx(getPosition().getX() + moveSpeed * -getU().getX());
affine.setTy(getPosition().getY() + moveSpeed * -getU().getY());
affine.setTz(getPosition().getZ() + moveSpeed * -getU().getZ());
}
private void strafeRight() {
affine.setTx(getPosition().getX() + moveSpeed * getU().getX());
affine.setTy(getPosition().getY() + moveSpeed * getU().getY());
affine.setTz(getPosition().getZ() + moveSpeed * getU().getZ());
}
private void moveBack() {
affine.setTx(getPosition().getX() + moveSpeed * -getN().getX());
affine.setTy(getPosition().getY() + moveSpeed * -getN().getY());
affine.setTz(getPosition().getZ() + moveSpeed * -getN().getZ());
}
private void moveUp() {
affine.setTx(getPosition().getX() + moveSpeed * -getV().getX());
affine.setTy(getPosition().getY() + moveSpeed * -getV().getY());
affine.setTz(getPosition().getZ() + moveSpeed * -getV().getZ());
}
private void moveDown() {
affine.setTx(getPosition().getX() + moveSpeed * getV().getX());
affine.setTy(getPosition().getY() + moveSpeed * getV().getY());
affine.setTz(getPosition().getZ() + moveSpeed * getV().getZ());
}
/*==========================================================================
Properties
*/
private final ReadOnlyObjectWrapper<PerspectiveCamera> camera = new ReadOnlyObjectWrapper<>(this, "camera", new PerspectiveCamera(true));
public final PerspectiveCamera getCamera() {
return camera.get();
}
public ReadOnlyObjectProperty cameraProperty() {
return camera.getReadOnlyProperty();
}
/*==========================================================================
Callbacks
| R | Up| F | | P|
U |mxx|mxy|mxz| |tx|
V |myx|myy|myz| |ty|
N |mzx|mzy|mzz| |tz|
*/
//Forward / look direction
private final Callback<Transform, Point3D> F = (a) -> {
return new Point3D(a.getMzx(), a.getMzy(), a.getMzz());
};
private final Callback<Transform, Point3D> N = (a) -> {
return new Point3D(a.getMxz(), a.getMyz(), a.getMzz());
};
// up direction
private final Callback<Transform, Point3D> UP = (a) -> {
return new Point3D(a.getMyx(), a.getMyy(), a.getMyz());
};
private final Callback<Transform, Point3D> V = (a) -> {
return new Point3D(a.getMxy(), a.getMyy(), a.getMzy());
};
// right direction
private final Callback<Transform, Point3D> R = (a) -> {
return new Point3D(a.getMxx(), a.getMxy(), a.getMxz());
};
private final Callback<Transform, Point3D> U = (a) -> {
return new Point3D(a.getMxx(), a.getMyx(), a.getMzx());
};
//position
private final Callback<Transform, Point3D> P = (a) -> {
return new Point3D(a.getTx(), a.getTy(), a.getTz());
};
private Point3D getF() {
return F.call(getLocalToSceneTransform());
}
public Point3D getLookDirection() {
return getF();
}
private Point3D getN() {
return N.call(getLocalToSceneTransform());
}
public Point3D getLookNormal() {
return getN();
}
private Point3D getR() {
return R.call(getLocalToSceneTransform());
}
private Point3D getU() {
return U.call(getLocalToSceneTransform());
}
private Point3D getUp() {
return UP.call(getLocalToSceneTransform());
}
private Point3D getV() {
return V.call(getLocalToSceneTransform());
}
public final Point3D getPosition() {
return P.call(getLocalToSceneTransform());
}
}
您修改后的代码：
public class VideoWall extends Application {
Random rand = new Random();
Group root = new Group();
PerspectiveCamera camera;
SimpleFPSCamera fpsCam;
private static final double CAMERA_INITIAL_DISTANCE = -10000;
private static final double CAMERA_NEAR_CLIP = 0.1;
private static final double CAMERA_FAR_CLIP = 100000.0;
Image[] images = new Image[]{
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Siberischer_tiger_de_edit02.jpg/320px-Siberischer_tiger_de_edit02.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/White_Lion.jpg/320px-White_Lion.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Lion_female.jpg/319px-Lion_female.jpg")
};
List<ParallelTransition> transitionList = new ArrayList<>();
List<ImageView> imageList = new ArrayList<>();
public VideoWall() {
}
public static void main(String[] args) {
launch(args);
}
/**
* Create ImageView with random Image.
*
* @return
*/
private ImageView createImageView() {
Image image = images[rand.nextInt(images.length)];
ImageView c = new ImageView(image);
c.setFitWidth(140);
c.setFitWidth(100);
c.setPreserveRatio(true);
return c;
}
private BillboardImage createBillboardImage() {
Image image = images[rand.nextInt(images.length)];
BillboardImage c = new BillboardImage(image);
c.setFitWidth(140);
c.setFitWidth(100);
c.setPreserveRatio(true);
return c;
}
@Override
public void start(Stage primaryStage) {
// build camera
//camera = new PerspectiveCamera(true);
//camera.setNearClip(CAMERA_NEAR_CLIP);
//camera.setFarClip(CAMERA_FAR_CLIP);
//camera.setTranslateZ(CAMERA_INITIAL_DISTANCE);
fpsCam = new SimpleFPSCamera();
// we display any node (imageview, webview, etc)
Node node;
// wall. the degrees depend on the distance, image size, translate start points, etc. so these values were just as they fit
double ringBeginDeg = -30;
double ringEndDeg = 38;
double r = 1300;
double yOffset = 80; // offset per image row
double yOffsetInitial = 120; // initial y offset from "floor"
int min = -3;
int max = 3;
/*
for (double angle1 = Math.toRadians(ringBeginDeg); angle1 < Math.toRadians(ringEndDeg); angle1 += 0.08) {
double angle2 = Math.PI;
for (int i = min; i <= max; i++) {
double x = r * Math.sin(angle1) * Math.cos(angle2);
// double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
node = createImageView();
node.setTranslateX(x);
node.setTranslateY(yOffset * i - yOffsetInitial);
node.setTranslateZ(z);
// rotate towards viewer position
Rotate rx = new Rotate();
rx.setAxis(Rotate.Y_AXIS);
rx.setAngle(Math.toDegrees(-angle1));
node.getTransforms().addAll(rx);
// reflection on bottom row
if (i == max) {
Reflection refl = new Reflection();
refl.setFraction(0.8f);
node.setEffect(refl);
}
// build the wall using a transition
node.setVisible(false);
transitionList.add(createTransition(node));
root.getChildren().add(node);
}
}*/
// full sphere
for (double angle1 = -Math.PI; angle1 <= Math.PI; angle1 += 0.48) {
for (double angle2 = -Math.PI; angle2 <= Math.PI; angle2 += 0.48) {
double x = r * Math.sin(angle1) * Math.cos(angle2);
double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
BillboardImage c = createBillboardImage();
c.setTranslateX(x);
c.setTranslateY(y);
c.setTranslateZ(z);
imageList.add(c);
}
}
root.getChildren().add(fpsCam);
root.getChildren().addAll(imageList);
Scene scene = new Scene(root, 1600, 900, true, SceneAntialiasing.BALANCED);
scene.setFill(Color.BLACK);
scene.setCamera(fpsCam.getCamera());
fpsCam.loadControlsForScene(scene);
primaryStage.setScene(scene);
primaryStage.show();
AnimationTimer timer = createBillboardTimer();
timer.start();
}
private AnimationTimer createBillboardTimer() {
return new AnimationTimer() {
@Override
public void handle(long now) {
if(!imageList.isEmpty()){
imageList.stream().forEach(bbi ->{
((BillboardImage)bbi).updateMatrix(bbi, fpsCam);
});
}
}
};
}
private AnimationTimer createAnimation() {
Collections.sort(transitionList, new Comparator<ParallelTransition>() {
@Override
public int compare(ParallelTransition arg0, ParallelTransition arg1) {
// bottom right to top left
Point2D ref = new Point2D(1000, 1000);
Point2D pt0 = new Point2D(arg0.getNode().getTranslateX(), arg0.getNode().getTranslateY());
Point2D pt1 = new Point2D(arg1.getNode().getTranslateX(), arg1.getNode().getTranslateY());
return Double.compare(ref.distance(pt0), ref.distance(pt1));
// bottom row first
// return -Double.compare( arg0.getNode().getTranslateY(), arg1.getNode().getTranslateY());
}
});
AnimationTimer timer = new AnimationTimer() {
long last = 0;
@Override
public void handle(long now) {
//if( (now - last) > 1_000_000_000)
if ((now - last) > 40_000_000) {
if (transitionList.size() > 0) {
ParallelTransition t = transitionList.remove(0);
t.getNode().setVisible(true);
t.play();
}
last = now;
}
if (transitionList.size() == 0) {
stop();
}
}
};
return timer;
}
private ParallelTransition createTransition(final Node node) {
Path path = new Path();
path.getElements().add(new MoveToAbs(node, node.getTranslateX() - 1000, node.getTranslateY() - 900));
path.getElements().add(new LineToAbs(node, node.getTranslateX(), node.getTranslateY()));
Duration duration = Duration.millis(1500);
PathTransition pt = new PathTransition(duration, path, node);
RotateTransition rt = new RotateTransition(duration, node);
rt.setByAngle(720);
rt.setAutoReverse(true);
ParallelTransition parallelTransition = new ParallelTransition();
parallelTransition.setNode(node);
parallelTransition.getChildren().addAll(pt, rt);
return parallelTransition;
}
public static class MoveToAbs extends MoveTo {
public MoveToAbs(Node node, double x, double y) {
super(x - node.getLayoutX() + node.getLayoutBounds().getWidth() / 2, y - node.getLayoutY() + node.getLayoutBounds().getHeight() / 2);
}
}
public static class LineToAbs extends LineTo {
public LineToAbs(Node node, double x, double y) {
super(x - node.getLayoutX() + node.getLayoutBounds().getWidth() / 2, y - node.getLayoutY() + node.getLayoutBounds().getHeight() / 2);
}
}
/*
*/
public enum BillboardMode {
SPHERICAL,
CYLINDRICAL;
}
private class BillboardImage extends ImageView{
// Add transform to Node that needs to look at target..
public Affine affine = new Affine();
public BillboardImage() {
this.getTransforms().add(affine);
}
public BillboardImage(String url) {
super(url);
this.getTransforms().add(affine);
}
public BillboardImage(Image image) {
super(image);
this.getTransforms().add(affine);
}
// set up to look at camera, can change to any other Node
protected void updateMatrix(Node billBoardNode, Node other) {
Transform self = billBoardNode.getLocalToSceneTransform(),
oth = other.getLocalToSceneTransform();
Bounds b;
double cX, cY, cZ;
if (!(billBoardNode instanceof Shape3D)) {
b = billBoardNode.getBoundsInLocal();
cX = b.getWidth() / 2;
cY = b.getHeight() / 2;
cZ = b.getDepth() / 2;
} else {
cX = self.getTx();
cY = self.getTy();
cZ = self.getTz();
}
Point3D otherPos = Point3D.ZERO.add(oth.getTx(), oth.getTy(), oth.getTz());
Point3D selfPos = new Point3D(cX, cY, cZ);
Point3D up = Point3D.ZERO.add(0, -1, 0),
forward = new Point3D(
(selfPos.getX()) - otherPos.getX(),
(selfPos.getY()) - otherPos.getY(),
(selfPos.getZ()) - otherPos.getZ()
).normalize(),
right = up.crossProduct(forward).normalize();
up = forward.crossProduct(right).normalize();
switch (getBillboardMode()) {
case SPHERICAL:
affine.setMxx(right.getX()); affine.setMxy(up.getX());affine.setMzx(forward.getX());
affine.setMyx(right.getY());affine.setMyy(up.getY()); affine.setMzy(forward.getY());
affine.setMzx(right.getZ());affine.setMzy(up.getZ());affine.setMzz(forward.getZ());
affine.setTx(cX * (1 - affine.getMxx()) - cY * affine.getMxy() - cZ * affine.getMxz());
affine.setTy(cY * (1 - affine.getMyy()) - cX * affine.getMyx() - cZ * affine.getMyz());
affine.setTz(cZ * (1 - affine.getMzz()) - cX * affine.getMzx() - cY * affine.getMzy());
break;
case CYLINDRICAL:
affine.setMxx(right.getX());affine.setMxy(0);affine.setMzx(forward.getX());
affine.setMyx(0);affine.setMyy(1);affine.setMzy(0);
affine.setMzx(right.getZ()); affine.setMzy(0);affine.setMzz(forward.getZ());
affine.setTx(cX * (1 - affine.getMxx()) - cY * affine.getMxy() - cZ * affine.getMxz());
affine.setTy(cY * (1 - affine.getMyy()) - cX * affine.getMyx() - cZ * affine.getMyz());
affine.setTz(cZ * (1 - affine.getMzz()) - cX * affine.getMzx() - cY * affine.getMzy());
break;
}
}
public BillboardMode getBillboardMode() {
return BillboardMode.SPHERICAL;
}
}
}
至少现在图像被广告牌显示在相机上了..
也可以随意使用我的 FPSCamera ..
控制就像任何标准的第一人称射击游戏
w = 前进，s = 后退，
a = 向左扫射，d = 向右扫射，
q & e 上下。
我研究并找到了一个非常棒的网站，其中包含相关信息：
http://paulbourke.net/geometry/transformationprojection/
相关部分是坐标系转换，特别是笛卡尔坐标和球坐标之间的转换方程。
double x = r * Math.sin(angle1) * Math.cos(angle2);
double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
在我下面的示例中，公式中没有使用 y，因为图像行是堆叠的。
注意：通过在从 -Math.PI 到 Math.PI 的 2 个嵌套 for 循环中使用这些公式，您可以围绕球体布置节点。关于整个球体的困难部分是将节点旋转到中心，那个我想不出来。
由于我不熟悉 Java3D，所以我也查看了 Building a 3D Sample Application。
最后搞了个电视墙，代码缩减成这样：
public class VideoWall extends Application {
Random rand = new Random();
Group root = new Group();
PerspectiveCamera camera;
private static final double CAMERA_INITIAL_DISTANCE = -850;
private static final double CAMERA_NEAR_CLIP = 0.1;
private static final double CAMERA_FAR_CLIP = 10000.0;
Image[] images = new Image[] {
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Siberischer_tiger_de_edit02.jpg/320px-Siberischer_tiger_de_edit02.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/White_Lion.jpg/320px-White_Lion.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Lion_female.jpg/319px-Lion_female.jpg")
};
public VideoWall(){
}
public static void main(String[] args) {
launch(args);
}
/**
* Create ImageView with random Image.
* @return
*/
private ImageView createImageView() {
Image image = images[ rand.nextInt(images.length)];
ImageView c = new ImageView( image);
c.setFitWidth(140);
c.setFitWidth(100);
c.setPreserveRatio(true);
return c;
}
@Override
public void start(Stage primaryStage) {
// build camera
camera = new PerspectiveCamera(true);
camera.setNearClip(CAMERA_NEAR_CLIP);
camera.setFarClip(CAMERA_FAR_CLIP);
camera.setTranslateZ(CAMERA_INITIAL_DISTANCE);
// we display any node (imageview, webview, etc)
Node node;
// create a single webview; we only add it once because we don't want to flood youtube
WebView webView = new WebView();
webView.getEngine().load(
"http://www.youtube.com/embed/utUPth77L_o?autoplay=1"
);
webView.setPrefSize(100, 70);
// wall. the degrees depend on the distance, image size, translate start points, etc. so these values were just as they fit
double ringBeginDeg = -30;
double ringEndDeg = 38;
double r = 1300;
double yOffset = 80; // offset per image row
double yOffsetInitial = 120; // initial y offset from "floor"
int count=0;
for( double angle1=Math.toRadians(ringBeginDeg); angle1 <Math.toRadians(ringEndDeg); angle1+=0.08)
{
double angle2 = Math.PI;
for( int i=-3; i <= 3; i++)
{
double x = r * Math.sin(angle1) * Math.cos(angle2);
// double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
// add 1 webview, the rest imageviews
if( count == 16) {
node = webView;
} else {
node = createImageView();
}
node.setTranslateX(x);
node.setTranslateY(yOffset * i - yOffsetInitial);
node.setTranslateZ(z);
// rotate towards viewer position
Rotate rx = new Rotate();
rx.setAxis(Rotate.Y_AXIS);
rx.setAngle(Math.toDegrees( -angle1));
node.getTransforms().addAll(rx);
root.getChildren().add( node);
count++;
}
}
Scene scene = new Scene(root, 1600, 900, Color.BLACK);
primaryStage.setScene( scene);
primaryStage.show();
scene.setCamera(camera);
}
}
您可以添加您喜欢的任何节点。我添加了一个 youtube webview 进行测试。它播放，但视频没有加载，所以你看到的只是静态噪音（屏幕截图中的灰色方块）。所以从理论上讲，您可以使用 youtube 视频使节点成为所有 webview，但这意味着充斥 youtube。最好使用一些离线视频。
截图如下：
我还玩弄了完整的 3d 示例并创建了一个戒指。这就是它从外部视图看起来的样子（始终具有相同的图像）：
将相机放在中央，您可以很好地滚动环。
如果有人想玩，here's a quick & dirty gist with the navigable ring。使用 left/right/middle 鼠标按钮进行导航。
如果你想玩弄一个完整的球体，你可以使用这个：
// full sphere
for (double angle1 = -Math.PI; angle1 <= Math.PI; angle1 += 0.15) {
for (double angle2 = -Math.PI; angle2 <= Math.PI; angle2 += 0.15) {
double x = r * Math.sin(angle1) * Math.cos(angle2);
double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
c = createImageView();
c.setTranslateX(x);
c.setTranslateY(y);
c.setTranslateZ(z);
Rotate rx = new Rotate();
rx.setAxis(Rotate.Y_AXIS);
rx.setAngle(Math.toDegrees(-angle1));
c.getTransforms().addAll(rx);
world.getChildren().add(c);
}
}
看起来像这样：
但如前所述，我还没有想出如何旋转所有图块，使它们朝向中心。他们需要平均分配。但这只是为了好玩和题外话。
因为它是我问题中视频的一部分，所以只需要保留一个平行过渡列表来创建图块的 "build-up" 动画。底行现在有反射。
扩展代码：
public class VideoWall extends Application {
Random rand = new Random();
Group root = new Group();
PerspectiveCamera camera;
private static final double CAMERA_INITIAL_DISTANCE = -850;
private static final double CAMERA_NEAR_CLIP = 0.1;
private static final double CAMERA_FAR_CLIP = 10000.0;
Image[] images = new Image[] {
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Siberischer_tiger_de_edit02.jpg/320px-Siberischer_tiger_de_edit02.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/White_Lion.jpg/320px-White_Lion.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Lion_female.jpg/319px-Lion_female.jpg")
};
List<ParallelTransition> transitionList = new ArrayList<>();
public VideoWall(){
}
public static void main(String[] args) {
launch(args);
}
/**
* Create ImageView with random Image.
* @return
*/
private ImageView createImageView() {
Image image = images[ rand.nextInt(images.length)];
ImageView c = new ImageView( image);
c.setFitWidth(140);
c.setFitWidth(100);
c.setPreserveRatio(true);
return c;
}
@Override
public void start(Stage primaryStage) {
// build camera
camera = new PerspectiveCamera(true);
camera.setNearClip(CAMERA_NEAR_CLIP);
camera.setFarClip(CAMERA_FAR_CLIP);
camera.setTranslateZ(CAMERA_INITIAL_DISTANCE);
// we display any node (imageview, webview, etc)
Node node;
// wall. the degrees depend on the distance, image size, translate start points, etc. so these values were just as they fit
double ringBeginDeg = -30;
double ringEndDeg = 38;
double r = 1300;
double yOffset = 80; // offset per image row
double yOffsetInitial = 120; // initial y offset from "floor"
int min = -3;
int max = 3;
for( double angle1=Math.toRadians(ringBeginDeg); angle1 <Math.toRadians(ringEndDeg); angle1+=0.08)
{
double angle2 = Math.PI;
for( int i=min; i <= max; i++)
{
double x = r * Math.sin(angle1) * Math.cos(angle2);
// double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
node = createImageView();
node.setTranslateX(x);
node.setTranslateY(yOffset * i - yOffsetInitial);
node.setTranslateZ(z);
// rotate towards viewer position
Rotate rx = new Rotate();
rx.setAxis(Rotate.Y_AXIS);
rx.setAngle(Math.toDegrees( -angle1));
node.getTransforms().addAll(rx);
// reflection on bottom row
if( i==max) {
Reflection refl = new Reflection();
refl.setFraction(0.8f);
node.setEffect(refl);
}
// build the wall using a transition
node.setVisible(false);
transitionList.add( createTransition( node));
root.getChildren().add( node);
}
}
Scene scene = new Scene(root, 1600, 900, Color.BLACK);
primaryStage.setScene( scene);
primaryStage.show();
scene.setCamera(camera);
AnimationTimer timer = createAnimation();
timer.start();
}
private AnimationTimer createAnimation() {
Collections.sort(transitionList, new Comparator<ParallelTransition>() {
@Override
public int compare(ParallelTransition arg0, ParallelTransition arg1) {
// bottom right to top left
Point2D ref = new Point2D(1000,1000);
Point2D pt0 = new Point2D( arg0.getNode().getTranslateX(), arg0.getNode().getTranslateY());
Point2D pt1 = new Point2D( arg1.getNode().getTranslateX(), arg1.getNode().getTranslateY());
return Double.compare(ref.distance(pt0), ref.distance(pt1));
// bottom row first
// return -Double.compare( arg0.getNode().getTranslateY(), arg1.getNode().getTranslateY());
}
});
AnimationTimer timer = new AnimationTimer() {
long last = 0;
@Override
public void handle(long now) {
//if( (now - last) > 1_000_000_000)
if( (now - last) > 40_000_000)
{
if( transitionList.size() > 0) {
ParallelTransition t = transitionList.remove(0);
t.getNode().setVisible(true);
t.play();
}
last = now;
}
if( transitionList.size() == 0) {
stop();
}
}
};
return timer;
}
private ParallelTransition createTransition( final Node node) {
Path path = new Path();
path.getElements().add(new MoveToAbs( node, node.getTranslateX() - 1000, node.getTranslateY() - 900));
path.getElements().add(new LineToAbs( node, node.getTranslateX(), node.getTranslateY()));
Duration duration = Duration.millis(1500);
PathTransition pt = new PathTransition( duration, path, node);
RotateTransition rt = new RotateTransition( duration, node);
rt.setByAngle(720);
rt.setAutoReverse(true);
ParallelTransition parallelTransition = new ParallelTransition();
parallelTransition.setNode(node);
parallelTransition.getChildren().addAll(pt, rt);
return parallelTransition;
}
public static class MoveToAbs extends MoveTo {
public MoveToAbs( Node node, double x, double y) {
super( x - node.getLayoutX() + node.getLayoutBounds().getWidth() / 2, y - node.getLayoutY() + node.getLayoutBounds().getHeight() / 2);
}
}
public static class LineToAbs extends LineTo {
public LineToAbs( Node node, double x, double y) {
super( x - node.getLayoutX() + node.getLayoutBounds().getWidth() / 2, y - node.getLayoutY() + node.getLayoutBounds().getHeight() / 2);
}
}
}
如何像此处的 JavaFX 2.0 演示那样创建视频墙：
https://www.youtube.com/watch?v=UXSmJYFrulY#t=411
首先，它不一定是视频，也可以是图片。我想要的只是像视频中那样放置节点，i。 e.呈圆柱体或球体内部的弯曲形状。
或者在某处可以找到该演示的源代码？
非常感谢。
对我来说，这似乎是创建网格的问题，或者 "Mesh" 从 ImageView 中创建。 然后将所有视口映射到要显示的图像。
例如，Here 是使用这种方法实现 3D 的天空盒。 请注意，这只是一个简单的立方体。 图片的设置类似于this，虽然我把它分成了6张单独的图片。
如果你想用视频，我推荐你用VLCJ， 他们有 JavaFX 设置示例 Here 为此，您将对 WritableImage(s)
应用相同的原则////////////////////////////////////////// //////////////////////////////////////////////// //////////////////////////////////////////////// /////////
我添加了一些东西供你玩...
/**
* A self initializing First Person Shooter camera
*
* @author Jason Pollastrini aka jdub1581
*/
public class SimpleFPSCamera extends Parent {
public SimpleFPSCamera() {
initialize();
}
private void update() {
updateControls();
}
private void updateControls() {
if (fwd && !back) {
moveForward();
}
if (strafeL) {
strafeLeft();
}
if (strafeR) {
strafeRight();
}
if (back && !fwd) {
moveBack();
}
if (up && !down) {
moveUp();
}
if (down && !up) {
moveDown();
}
}
/*==========================================================================
Initialization
*/
private final Group root = new Group();
private final Affine affine = new Affine();
private final Translate t = new Translate(0, 0, 0);
private final Rotate rotateX = new Rotate(0, Rotate.X_AXIS),
rotateY = new Rotate(0, Rotate.Y_AXIS),
rotateZ = new Rotate(0, Rotate.Z_AXIS);
private boolean fwd, strafeL, strafeR, back, up, down, shift;
private double mouseSpeed = 1.0, mouseModifier = 0.1;
private double moveSpeed = 10.0;
private double mousePosX;
private double mousePosY;
private double mouseOldX;
private double mouseOldY;
private double mouseDeltaX;
private double mouseDeltaY;
private void initialize() {
getChildren().add(root);
getTransforms().addAll(affine);
initializeCamera();
startUpdateThread();
}
public void loadControlsForSubScene(SubScene scene) {
sceneProperty().addListener(l -> {
if (getScene() != null) {
getScene().addEventHandler(KeyEvent.ANY, ke -> {
if (ke.getEventType() == KeyEvent.KEY_PRESSED) {
switch (ke.getCode()) {
case Q:
up = true;
break;
case E:
down = true;
break;
case W:
fwd = true;
break;
case S:
back = true;
break;
case A:
strafeL = true;
break;
case D:
strafeR = true;
break;
case SHIFT:
shift = true;
moveSpeed = 20;
break;
}
} else if (ke.getEventType() == KeyEvent.KEY_RELEASED) {
switch (ke.getCode()) {
case Q:
up = false;
break;
case E:
down = false;
break;
case W:
fwd = false;
break;
case S:
back = false;
break;
case A:
strafeL = false;
break;
case D:
strafeR = false;
break;
case SHIFT:
moveSpeed = 10;
shift = false;
break;
}
}
ke.consume();
});
}
});
scene.addEventHandler(MouseEvent.ANY, me -> {
if (me.getEventType().equals(MouseEvent.MOUSE_PRESSED)) {
mousePosX = me.getSceneX();
mousePosY = me.getSceneY();
mouseOldX = me.getSceneX();
mouseOldY = me.getSceneY();
} else if (me.getEventType().equals(MouseEvent.MOUSE_DRAGGED)) {
mouseOldX = mousePosX;
mouseOldY = mousePosY;
mousePosX = me.getSceneX();
mousePosY = me.getSceneY();
mouseDeltaX = (mousePosX - mouseOldX);
mouseDeltaY = (mousePosY - mouseOldY);
mouseSpeed = 1.0;
mouseModifier = 0.1;
if (me.isPrimaryButtonDown()) {
if (me.isControlDown()) {
mouseSpeed = 0.1;
}
if (me.isShiftDown()) {
mouseSpeed = 1.0;
}
t.setX(getPosition().getX());
t.setY(getPosition().getY());
t.setZ(getPosition().getZ());
affine.setToIdentity();
rotateY.setAngle(
Utils.clamp(-360, ((rotateY.getAngle() + mouseDeltaX * (mouseSpeed * mouseModifier)) % 360 + 540) % 360 - 180, 360)
); // horizontal
rotateX.setAngle(
Utils.clamp(-45, ((rotateX.getAngle() - mouseDeltaY * (mouseSpeed * mouseModifier)) % 360 + 540) % 360 - 180, 35)
); // vertical
affine.prepend(t.createConcatenation(rotateY.createConcatenation(rotateX)));
} else if (me.isSecondaryButtonDown()) {
/*
init zoom?
*/
} else if (me.isMiddleButtonDown()) {
/*
init panning?
*/
}
}
});
scene.addEventHandler(ScrollEvent.ANY, se -> {
if (se.getEventType().equals(ScrollEvent.SCROLL_STARTED)) {
} else if (se.getEventType().equals(ScrollEvent.SCROLL)) {
} else if (se.getEventType().equals(ScrollEvent.SCROLL_FINISHED)) {
}
});
}
public void loadControlsForScene(Scene scene) {
scene.addEventHandler(KeyEvent.ANY, ke -> {
if (ke.getEventType() == KeyEvent.KEY_PRESSED) {
switch (ke.getCode()) {
case Q:
up = true;
break;
case E:
down = true;
break;
case W:
fwd = true;
break;
case S:
back = true;
break;
case A:
strafeL = true;
break;
case D:
strafeR = true;
break;
case SHIFT:
shift = true;
moveSpeed = 20;
break;
}
} else if (ke.getEventType() == KeyEvent.KEY_RELEASED) {
switch (ke.getCode()) {
case Q:
up = false;
break;
case E:
down = false;
break;
case W:
fwd = false;
break;
case S:
back = false;
break;
case A:
strafeL = false;
break;
case D:
strafeR = false;
break;
case SHIFT:
moveSpeed = 10;
shift = false;
break;
}
}
ke.consume();
});
scene.addEventHandler(MouseEvent.ANY, me -> {
if (me.getEventType().equals(MouseEvent.MOUSE_PRESSED)) {
mousePosX = me.getSceneX();
mousePosY = me.getSceneY();
mouseOldX = me.getSceneX();
mouseOldY = me.getSceneY();
} else if (me.getEventType().equals(MouseEvent.MOUSE_DRAGGED)) {
mouseOldX = mousePosX;
mouseOldY = mousePosY;
mousePosX = me.getSceneX();
mousePosY = me.getSceneY();
mouseDeltaX = (mousePosX - mouseOldX);
mouseDeltaY = (mousePosY - mouseOldY);
mouseSpeed = 1.0;
mouseModifier = 0.1;
if (me.isPrimaryButtonDown()) {
if (me.isControlDown()) {
mouseSpeed = 0.1;
}
if (me.isShiftDown()) {
mouseSpeed = 1.0;
}
t.setX(getPosition().getX());
t.setY(getPosition().getY());
t.setZ(getPosition().getZ());
affine.setToIdentity();
rotateY.setAngle(
Utils.clamp(-360, ((rotateY.getAngle() + mouseDeltaX * (mouseSpeed * mouseModifier)) % 360 + 540) % 360 - 180, 360)
); // horizontal
rotateX.setAngle(
Utils.clamp(-45, ((rotateX.getAngle() - mouseDeltaY * (mouseSpeed * mouseModifier)) % 360 + 540) % 360 - 180, 35)
); // vertical
affine.prepend(t.createConcatenation(rotateY.createConcatenation(rotateX)));
} else if (me.isSecondaryButtonDown()) {
/*
init zoom?
*/
} else if (me.isMiddleButtonDown()) {
/*
init panning?
*/
}
}
});
scene.addEventHandler(ScrollEvent.ANY, se -> {
if (se.getEventType().equals(ScrollEvent.SCROLL_STARTED)) {
} else if (se.getEventType().equals(ScrollEvent.SCROLL)) {
} else if (se.getEventType().equals(ScrollEvent.SCROLL_FINISHED)) {
}
});
}
private void initializeCamera() {
getCamera().setNearClip(0.1);
getCamera().setFarClip(100000);
getCamera().setFieldOfView(42);
getCamera().setVerticalFieldOfView(true);
//getCamera().getTransforms().add(new Rotate(180, Rotate.Z_AXIS));
root.getChildren().add(getCamera());
}
private void startUpdateThread() {
new AnimationTimer() {
@Override
public void handle(long now) {
update();
}
}.start();
}
/*==========================================================================
Movement
*/
private void moveForward() {
affine.setTx(getPosition().getX() + moveSpeed * getN().getX());
affine.setTy(getPosition().getY() + moveSpeed * getN().getY());
affine.setTz(getPosition().getZ() + moveSpeed * getN().getZ());
}
private void strafeLeft() {
affine.setTx(getPosition().getX() + moveSpeed * -getU().getX());
affine.setTy(getPosition().getY() + moveSpeed * -getU().getY());
affine.setTz(getPosition().getZ() + moveSpeed * -getU().getZ());
}
private void strafeRight() {
affine.setTx(getPosition().getX() + moveSpeed * getU().getX());
affine.setTy(getPosition().getY() + moveSpeed * getU().getY());
affine.setTz(getPosition().getZ() + moveSpeed * getU().getZ());
}
private void moveBack() {
affine.setTx(getPosition().getX() + moveSpeed * -getN().getX());
affine.setTy(getPosition().getY() + moveSpeed * -getN().getY());
affine.setTz(getPosition().getZ() + moveSpeed * -getN().getZ());
}
private void moveUp() {
affine.setTx(getPosition().getX() + moveSpeed * -getV().getX());
affine.setTy(getPosition().getY() + moveSpeed * -getV().getY());
affine.setTz(getPosition().getZ() + moveSpeed * -getV().getZ());
}
private void moveDown() {
affine.setTx(getPosition().getX() + moveSpeed * getV().getX());
affine.setTy(getPosition().getY() + moveSpeed * getV().getY());
affine.setTz(getPosition().getZ() + moveSpeed * getV().getZ());
}
/*==========================================================================
Properties
*/
private final ReadOnlyObjectWrapper<PerspectiveCamera> camera = new ReadOnlyObjectWrapper<>(this, "camera", new PerspectiveCamera(true));
public final PerspectiveCamera getCamera() {
return camera.get();
}
public ReadOnlyObjectProperty cameraProperty() {
return camera.getReadOnlyProperty();
}
/*==========================================================================
Callbacks
| R | Up| F | | P|
U |mxx|mxy|mxz| |tx|
V |myx|myy|myz| |ty|
N |mzx|mzy|mzz| |tz|
*/
//Forward / look direction
private final Callback<Transform, Point3D> F = (a) -> {
return new Point3D(a.getMzx(), a.getMzy(), a.getMzz());
};
private final Callback<Transform, Point3D> N = (a) -> {
return new Point3D(a.getMxz(), a.getMyz(), a.getMzz());
};
// up direction
private final Callback<Transform, Point3D> UP = (a) -> {
return new Point3D(a.getMyx(), a.getMyy(), a.getMyz());
};
private final Callback<Transform, Point3D> V = (a) -> {
return new Point3D(a.getMxy(), a.getMyy(), a.getMzy());
};
// right direction
private final Callback<Transform, Point3D> R = (a) -> {
return new Point3D(a.getMxx(), a.getMxy(), a.getMxz());
};
private final Callback<Transform, Point3D> U = (a) -> {
return new Point3D(a.getMxx(), a.getMyx(), a.getMzx());
};
//position
private final Callback<Transform, Point3D> P = (a) -> {
return new Point3D(a.getTx(), a.getTy(), a.getTz());
};
private Point3D getF() {
return F.call(getLocalToSceneTransform());
}
public Point3D getLookDirection() {
return getF();
}
private Point3D getN() {
return N.call(getLocalToSceneTransform());
}
public Point3D getLookNormal() {
return getN();
}
private Point3D getR() {
return R.call(getLocalToSceneTransform());
}
private Point3D getU() {
return U.call(getLocalToSceneTransform());
}
private Point3D getUp() {
return UP.call(getLocalToSceneTransform());
}
private Point3D getV() {
return V.call(getLocalToSceneTransform());
}
public final Point3D getPosition() {
return P.call(getLocalToSceneTransform());
}
}
您修改后的代码：
public class VideoWall extends Application {
Random rand = new Random();
Group root = new Group();
PerspectiveCamera camera;
SimpleFPSCamera fpsCam;
private static final double CAMERA_INITIAL_DISTANCE = -10000;
private static final double CAMERA_NEAR_CLIP = 0.1;
private static final double CAMERA_FAR_CLIP = 100000.0;
Image[] images = new Image[]{
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Siberischer_tiger_de_edit02.jpg/320px-Siberischer_tiger_de_edit02.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/White_Lion.jpg/320px-White_Lion.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Lion_female.jpg/319px-Lion_female.jpg")
};
List<ParallelTransition> transitionList = new ArrayList<>();
List<ImageView> imageList = new ArrayList<>();
public VideoWall() {
}
public static void main(String[] args) {
launch(args);
}
/**
* Create ImageView with random Image.
*
* @return
*/
private ImageView createImageView() {
Image image = images[rand.nextInt(images.length)];
ImageView c = new ImageView(image);
c.setFitWidth(140);
c.setFitWidth(100);
c.setPreserveRatio(true);
return c;
}
private BillboardImage createBillboardImage() {
Image image = images[rand.nextInt(images.length)];
BillboardImage c = new BillboardImage(image);
c.setFitWidth(140);
c.setFitWidth(100);
c.setPreserveRatio(true);
return c;
}
@Override
public void start(Stage primaryStage) {
// build camera
//camera = new PerspectiveCamera(true);
//camera.setNearClip(CAMERA_NEAR_CLIP);
//camera.setFarClip(CAMERA_FAR_CLIP);
//camera.setTranslateZ(CAMERA_INITIAL_DISTANCE);
fpsCam = new SimpleFPSCamera();
// we display any node (imageview, webview, etc)
Node node;
// wall. the degrees depend on the distance, image size, translate start points, etc. so these values were just as they fit
double ringBeginDeg = -30;
double ringEndDeg = 38;
double r = 1300;
double yOffset = 80; // offset per image row
double yOffsetInitial = 120; // initial y offset from "floor"
int min = -3;
int max = 3;
/*
for (double angle1 = Math.toRadians(ringBeginDeg); angle1 < Math.toRadians(ringEndDeg); angle1 += 0.08) {
double angle2 = Math.PI;
for (int i = min; i <= max; i++) {
double x = r * Math.sin(angle1) * Math.cos(angle2);
// double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
node = createImageView();
node.setTranslateX(x);
node.setTranslateY(yOffset * i - yOffsetInitial);
node.setTranslateZ(z);
// rotate towards viewer position
Rotate rx = new Rotate();
rx.setAxis(Rotate.Y_AXIS);
rx.setAngle(Math.toDegrees(-angle1));
node.getTransforms().addAll(rx);
// reflection on bottom row
if (i == max) {
Reflection refl = new Reflection();
refl.setFraction(0.8f);
node.setEffect(refl);
}
// build the wall using a transition
node.setVisible(false);
transitionList.add(createTransition(node));
root.getChildren().add(node);
}
}*/
// full sphere
for (double angle1 = -Math.PI; angle1 <= Math.PI; angle1 += 0.48) {
for (double angle2 = -Math.PI; angle2 <= Math.PI; angle2 += 0.48) {
double x = r * Math.sin(angle1) * Math.cos(angle2);
double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
BillboardImage c = createBillboardImage();
c.setTranslateX(x);
c.setTranslateY(y);
c.setTranslateZ(z);
imageList.add(c);
}
}
root.getChildren().add(fpsCam);
root.getChildren().addAll(imageList);
Scene scene = new Scene(root, 1600, 900, true, SceneAntialiasing.BALANCED);
scene.setFill(Color.BLACK);
scene.setCamera(fpsCam.getCamera());
fpsCam.loadControlsForScene(scene);
primaryStage.setScene(scene);
primaryStage.show();
AnimationTimer timer = createBillboardTimer();
timer.start();
}
private AnimationTimer createBillboardTimer() {
return new AnimationTimer() {
@Override
public void handle(long now) {
if(!imageList.isEmpty()){
imageList.stream().forEach(bbi ->{
((BillboardImage)bbi).updateMatrix(bbi, fpsCam);
});
}
}
};
}
private AnimationTimer createAnimation() {
Collections.sort(transitionList, new Comparator<ParallelTransition>() {
@Override
public int compare(ParallelTransition arg0, ParallelTransition arg1) {
// bottom right to top left
Point2D ref = new Point2D(1000, 1000);
Point2D pt0 = new Point2D(arg0.getNode().getTranslateX(), arg0.getNode().getTranslateY());
Point2D pt1 = new Point2D(arg1.getNode().getTranslateX(), arg1.getNode().getTranslateY());
return Double.compare(ref.distance(pt0), ref.distance(pt1));
// bottom row first
// return -Double.compare( arg0.getNode().getTranslateY(), arg1.getNode().getTranslateY());
}
});
AnimationTimer timer = new AnimationTimer() {
long last = 0;
@Override
public void handle(long now) {
//if( (now - last) > 1_000_000_000)
if ((now - last) > 40_000_000) {
if (transitionList.size() > 0) {
ParallelTransition t = transitionList.remove(0);
t.getNode().setVisible(true);
t.play();
}
last = now;
}
if (transitionList.size() == 0) {
stop();
}
}
};
return timer;
}
private ParallelTransition createTransition(final Node node) {
Path path = new Path();
path.getElements().add(new MoveToAbs(node, node.getTranslateX() - 1000, node.getTranslateY() - 900));
path.getElements().add(new LineToAbs(node, node.getTranslateX(), node.getTranslateY()));
Duration duration = Duration.millis(1500);
PathTransition pt = new PathTransition(duration, path, node);
RotateTransition rt = new RotateTransition(duration, node);
rt.setByAngle(720);
rt.setAutoReverse(true);
ParallelTransition parallelTransition = new ParallelTransition();
parallelTransition.setNode(node);
parallelTransition.getChildren().addAll(pt, rt);
return parallelTransition;
}
public static class MoveToAbs extends MoveTo {
public MoveToAbs(Node node, double x, double y) {
super(x - node.getLayoutX() + node.getLayoutBounds().getWidth() / 2, y - node.getLayoutY() + node.getLayoutBounds().getHeight() / 2);
}
}
public static class LineToAbs extends LineTo {
public LineToAbs(Node node, double x, double y) {
super(x - node.getLayoutX() + node.getLayoutBounds().getWidth() / 2, y - node.getLayoutY() + node.getLayoutBounds().getHeight() / 2);
}
}
/*
*/
public enum BillboardMode {
SPHERICAL,
CYLINDRICAL;
}
private class BillboardImage extends ImageView{
// Add transform to Node that needs to look at target..
public Affine affine = new Affine();
public BillboardImage() {
this.getTransforms().add(affine);
}
public BillboardImage(String url) {
super(url);
this.getTransforms().add(affine);
}
public BillboardImage(Image image) {
super(image);
this.getTransforms().add(affine);
}
// set up to look at camera, can change to any other Node
protected void updateMatrix(Node billBoardNode, Node other) {
Transform self = billBoardNode.getLocalToSceneTransform(),
oth = other.getLocalToSceneTransform();
Bounds b;
double cX, cY, cZ;
if (!(billBoardNode instanceof Shape3D)) {
b = billBoardNode.getBoundsInLocal();
cX = b.getWidth() / 2;
cY = b.getHeight() / 2;
cZ = b.getDepth() / 2;
} else {
cX = self.getTx();
cY = self.getTy();
cZ = self.getTz();
}
Point3D otherPos = Point3D.ZERO.add(oth.getTx(), oth.getTy(), oth.getTz());
Point3D selfPos = new Point3D(cX, cY, cZ);
Point3D up = Point3D.ZERO.add(0, -1, 0),
forward = new Point3D(
(selfPos.getX()) - otherPos.getX(),
(selfPos.getY()) - otherPos.getY(),
(selfPos.getZ()) - otherPos.getZ()
).normalize(),
right = up.crossProduct(forward).normalize();
up = forward.crossProduct(right).normalize();
switch (getBillboardMode()) {
case SPHERICAL:
affine.setMxx(right.getX()); affine.setMxy(up.getX());affine.setMzx(forward.getX());
affine.setMyx(right.getY());affine.setMyy(up.getY()); affine.setMzy(forward.getY());
affine.setMzx(right.getZ());affine.setMzy(up.getZ());affine.setMzz(forward.getZ());
affine.setTx(cX * (1 - affine.getMxx()) - cY * affine.getMxy() - cZ * affine.getMxz());
affine.setTy(cY * (1 - affine.getMyy()) - cX * affine.getMyx() - cZ * affine.getMyz());
affine.setTz(cZ * (1 - affine.getMzz()) - cX * affine.getMzx() - cY * affine.getMzy());
break;
case CYLINDRICAL:
affine.setMxx(right.getX());affine.setMxy(0);affine.setMzx(forward.getX());
affine.setMyx(0);affine.setMyy(1);affine.setMzy(0);
affine.setMzx(right.getZ()); affine.setMzy(0);affine.setMzz(forward.getZ());
affine.setTx(cX * (1 - affine.getMxx()) - cY * affine.getMxy() - cZ * affine.getMxz());
affine.setTy(cY * (1 - affine.getMyy()) - cX * affine.getMyx() - cZ * affine.getMyz());
affine.setTz(cZ * (1 - affine.getMzz()) - cX * affine.getMzx() - cY * affine.getMzy());
break;
}
}
public BillboardMode getBillboardMode() {
return BillboardMode.SPHERICAL;
}
}
}
至少现在图像被广告牌显示在相机上了.. 也可以随意使用我的 FPSCamera ..
控制就像任何标准的第一人称射击游戏
w = 前进，s = 后退， a = 向左扫射，d = 向右扫射， q & e 上下。
我研究并找到了一个非常棒的网站，其中包含相关信息：
http://paulbourke.net/geometry/transformationprojection/
相关部分是坐标系转换，特别是笛卡尔坐标和球坐标之间的转换方程。
double x = r * Math.sin(angle1) * Math.cos(angle2);
double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
在我下面的示例中，公式中没有使用 y，因为图像行是堆叠的。
注意：通过在从 -Math.PI 到 Math.PI 的 2 个嵌套 for 循环中使用这些公式，您可以围绕球体布置节点。关于整个球体的困难部分是将节点旋转到中心，那个我想不出来。
由于我不熟悉 Java3D，所以我也查看了 Building a 3D Sample Application。
最后搞了个电视墙，代码缩减成这样：
public class VideoWall extends Application {
Random rand = new Random();
Group root = new Group();
PerspectiveCamera camera;
private static final double CAMERA_INITIAL_DISTANCE = -850;
private static final double CAMERA_NEAR_CLIP = 0.1;
private static final double CAMERA_FAR_CLIP = 10000.0;
Image[] images = new Image[] {
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Siberischer_tiger_de_edit02.jpg/320px-Siberischer_tiger_de_edit02.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/White_Lion.jpg/320px-White_Lion.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Lion_female.jpg/319px-Lion_female.jpg")
};
public VideoWall(){
}
public static void main(String[] args) {
launch(args);
}
/**
* Create ImageView with random Image.
* @return
*/
private ImageView createImageView() {
Image image = images[ rand.nextInt(images.length)];
ImageView c = new ImageView( image);
c.setFitWidth(140);
c.setFitWidth(100);
c.setPreserveRatio(true);
return c;
}
@Override
public void start(Stage primaryStage) {
// build camera
camera = new PerspectiveCamera(true);
camera.setNearClip(CAMERA_NEAR_CLIP);
camera.setFarClip(CAMERA_FAR_CLIP);
camera.setTranslateZ(CAMERA_INITIAL_DISTANCE);
// we display any node (imageview, webview, etc)
Node node;
// create a single webview; we only add it once because we don't want to flood youtube
WebView webView = new WebView();
webView.getEngine().load(
"http://www.youtube.com/embed/utUPth77L_o?autoplay=1"
);
webView.setPrefSize(100, 70);
// wall. the degrees depend on the distance, image size, translate start points, etc. so these values were just as they fit
double ringBeginDeg = -30;
double ringEndDeg = 38;
double r = 1300;
double yOffset = 80; // offset per image row
double yOffsetInitial = 120; // initial y offset from "floor"
int count=0;
for( double angle1=Math.toRadians(ringBeginDeg); angle1 <Math.toRadians(ringEndDeg); angle1+=0.08)
{
double angle2 = Math.PI;
for( int i=-3; i <= 3; i++)
{
double x = r * Math.sin(angle1) * Math.cos(angle2);
// double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
// add 1 webview, the rest imageviews
if( count == 16) {
node = webView;
} else {
node = createImageView();
}
node.setTranslateX(x);
node.setTranslateY(yOffset * i - yOffsetInitial);
node.setTranslateZ(z);
// rotate towards viewer position
Rotate rx = new Rotate();
rx.setAxis(Rotate.Y_AXIS);
rx.setAngle(Math.toDegrees( -angle1));
node.getTransforms().addAll(rx);
root.getChildren().add( node);
count++;
}
}
Scene scene = new Scene(root, 1600, 900, Color.BLACK);
primaryStage.setScene( scene);
primaryStage.show();
scene.setCamera(camera);
}
}
您可以添加您喜欢的任何节点。我添加了一个 youtube webview 进行测试。它播放，但视频没有加载，所以你看到的只是静态噪音（屏幕截图中的灰色方块）。所以从理论上讲，您可以使用 youtube 视频使节点成为所有 webview，但这意味着充斥 youtube。最好使用一些离线视频。
截图如下：
我还玩弄了完整的 3d 示例并创建了一个戒指。这就是它从外部视图看起来的样子（始终具有相同的图像）：
将相机放在中央，您可以很好地滚动环。
如果有人想玩，here's a quick & dirty gist with the navigable ring。使用 left/right/middle 鼠标按钮进行导航。
如果你想玩弄一个完整的球体，你可以使用这个：
// full sphere
for (double angle1 = -Math.PI; angle1 <= Math.PI; angle1 += 0.15) {
for (double angle2 = -Math.PI; angle2 <= Math.PI; angle2 += 0.15) {
double x = r * Math.sin(angle1) * Math.cos(angle2);
double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
c = createImageView();
c.setTranslateX(x);
c.setTranslateY(y);
c.setTranslateZ(z);
Rotate rx = new Rotate();
rx.setAxis(Rotate.Y_AXIS);
rx.setAngle(Math.toDegrees(-angle1));
c.getTransforms().addAll(rx);
world.getChildren().add(c);
}
}
看起来像这样：
但如前所述，我还没有想出如何旋转所有图块，使它们朝向中心。他们需要平均分配。但这只是为了好玩和题外话。
因为它是我问题中视频的一部分，所以只需要保留一个平行过渡列表来创建图块的 "build-up" 动画。底行现在有反射。
扩展代码：
public class VideoWall extends Application {
Random rand = new Random();
Group root = new Group();
PerspectiveCamera camera;
private static final double CAMERA_INITIAL_DISTANCE = -850;
private static final double CAMERA_NEAR_CLIP = 0.1;
private static final double CAMERA_FAR_CLIP = 10000.0;
Image[] images = new Image[] {
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Siberischer_tiger_de_edit02.jpg/320px-Siberischer_tiger_de_edit02.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/White_Lion.jpg/320px-White_Lion.jpg"),
new Image("http://upload.wikimedia.org/wikipedia/commons/thumb/4/47/Lion_female.jpg/319px-Lion_female.jpg")
};
List<ParallelTransition> transitionList = new ArrayList<>();
public VideoWall(){
}
public static void main(String[] args) {
launch(args);
}
/**
* Create ImageView with random Image.
* @return
*/
private ImageView createImageView() {
Image image = images[ rand.nextInt(images.length)];
ImageView c = new ImageView( image);
c.setFitWidth(140);
c.setFitWidth(100);
c.setPreserveRatio(true);
return c;
}
@Override
public void start(Stage primaryStage) {
// build camera
camera = new PerspectiveCamera(true);
camera.setNearClip(CAMERA_NEAR_CLIP);
camera.setFarClip(CAMERA_FAR_CLIP);
camera.setTranslateZ(CAMERA_INITIAL_DISTANCE);
// we display any node (imageview, webview, etc)
Node node;
// wall. the degrees depend on the distance, image size, translate start points, etc. so these values were just as they fit
double ringBeginDeg = -30;
double ringEndDeg = 38;
double r = 1300;
double yOffset = 80; // offset per image row
double yOffsetInitial = 120; // initial y offset from "floor"
int min = -3;
int max = 3;
for( double angle1=Math.toRadians(ringBeginDeg); angle1 <Math.toRadians(ringEndDeg); angle1+=0.08)
{
double angle2 = Math.PI;
for( int i=min; i <= max; i++)
{
double x = r * Math.sin(angle1) * Math.cos(angle2);
// double y = r * Math.sin(angle1) * Math.sin(angle2);
double z = r * Math.cos(angle1);
node = createImageView();
node.setTranslateX(x);
node.setTranslateY(yOffset * i - yOffsetInitial);
node.setTranslateZ(z);
// rotate towards viewer position
Rotate rx = new Rotate();
rx.setAxis(Rotate.Y_AXIS);
rx.setAngle(Math.toDegrees( -angle1));
node.getTransforms().addAll(rx);
// reflection on bottom row
if( i==max) {
Reflection refl = new Reflection();
refl.setFraction(0.8f);
node.setEffect(refl);
}
// build the wall using a transition
node.setVisible(false);
transitionList.add( createTransition( node));
root.getChildren().add( node);
}
}
Scene scene = new Scene(root, 1600, 900, Color.BLACK);
primaryStage.setScene( scene);
primaryStage.show();
scene.setCamera(camera);
AnimationTimer timer = createAnimation();
timer.start();
}
private AnimationTimer createAnimation() {
Collections.sort(transitionList, new Comparator<ParallelTransition>() {
@Override
public int compare(ParallelTransition arg0, ParallelTransition arg1) {
// bottom right to top left
Point2D ref = new Point2D(1000,1000);
Point2D pt0 = new Point2D( arg0.getNode().getTranslateX(), arg0.getNode().getTranslateY());
Point2D pt1 = new Point2D( arg1.getNode().getTranslateX(), arg1.getNode().getTranslateY());
return Double.compare(ref.distance(pt0), ref.distance(pt1));
// bottom row first
// return -Double.compare( arg0.getNode().getTranslateY(), arg1.getNode().getTranslateY());
}
});
AnimationTimer timer = new AnimationTimer() {
long last = 0;
@Override
public void handle(long now) {
//if( (now - last) > 1_000_000_000)
if( (now - last) > 40_000_000)
{
if( transitionList.size() > 0) {
ParallelTransition t = transitionList.remove(0);
t.getNode().setVisible(true);
t.play();
}
last = now;
}
if( transitionList.size() == 0) {
stop();
}
}
};
return timer;
}
private ParallelTransition createTransition( final Node node) {
Path path = new Path();
path.getElements().add(new MoveToAbs( node, node.getTranslateX() - 1000, node.getTranslateY() - 900));
path.getElements().add(new LineToAbs( node, node.getTranslateX(), node.getTranslateY()));
Duration duration = Duration.millis(1500);
PathTransition pt = new PathTransition( duration, path, node);
RotateTransition rt = new RotateTransition( duration, node);
rt.setByAngle(720);
rt.setAutoReverse(true);
ParallelTransition parallelTransition = new ParallelTransition();
parallelTransition.setNode(node);
parallelTransition.getChildren().addAll(pt, rt);
return parallelTransition;
}
public static class MoveToAbs extends MoveTo {
public MoveToAbs( Node node, double x, double y) {
super( x - node.getLayoutX() + node.getLayoutBounds().getWidth() / 2, y - node.getLayoutY() + node.getLayoutBounds().getHeight() / 2);
}
}
public static class LineToAbs extends LineTo {
public LineToAbs( Node node, double x, double y) {
super( x - node.getLayoutX() + node.getLayoutBounds().getWidth() / 2, y - node.getLayoutY() + node.getLayoutBounds().getHeight() / 2);
}
}
}