JavaFX 3D中的可见光源

2019年7月20日 303次阅读

我目前正在研究
JavaFX 3D功能,我想对太阳系进行建模.我非常成功地创建了PointLight类型的光源,并将其坐标设置为sun的坐标.现在我希望看到太阳以它的光芒作为光源发光.我该怎么办？

@Component
public class RootPane extends StackPane {

    @Inject
    protected Scene scene;

    @Inject
    protected PerspectiveCamera camera;

    @Inject
    protected LightBase lightBase;

    @PostConstruct
    public void init() {
        setBackground(new Background(new BackgroundFill(
                Color.TRANSPARENT, CornerRadii.EMPTY, Insets.EMPTY)));
        setAlignment(Pos.CENTER);
        setPadding(new Insets(20));

        Sphere sunSphere = new Sphere(80);
        sunSphere.setEffect(new Glow(5));

        Sphere mercurySphere = new Sphere(40);
        mercurySphere.translateZProperty().bind(sunSphere.translateZProperty()
                .add(200));

        Sphere venusSphere = new Sphere(40);
        venusSphere.translateXProperty().bind(sunSphere.translateXProperty()
                .subtract(300));
        venusSphere.translateZProperty().bind(sunSphere.translateZProperty()
                .subtract(300));

        Sphere earthSphere = new Sphere(40);
        earthSphere.translateXProperty().bind(sunSphere.translateXProperty()
                .add(300));
        earthSphere.translateZProperty().bind(sunSphere.translateZProperty()
                .subtract(400));

        Rotate rotateX = new Rotate(0, Rotate.X_AXIS);
        Rotate rotateY = new Rotate(0, Rotate.Y_AXIS);
        Rotate rotateZ = new Rotate(0, Rotate.Z_AXIS);

        Translate translate = new Translate(0, 0, -3000);

        camera.getTransforms().addAll(rotateX, rotateY, rotateZ, translate);

        scene.addEventHandler(
                KeyEvent.KEY_PRESSED,
                event -> {
                    if (Objects.equals(event.getCode(), KeyCode.D)) {
                        rotateY.setAngle(rotateY.getAngle() - 
                                (event.isShiftDown() ? 5 : 0.1));
                    } else if (Objects.equals(event.getCode(), KeyCode.A)) {
                        rotateY.setAngle(rotateY.getAngle() + 
                                (event.isShiftDown() ? 5 : 0.1));
                    }
                });
        scene.addEventHandler(
                KeyEvent.KEY_PRESSED,
                event -> {
                    if (Objects.equals(event.getCode(), KeyCode.W)) {
                        rotateX.setAngle(rotateX.getAngle() - 
                                (event.isShiftDown() ? 5 : 0.1));
                    } else if (Objects.equals(event.getCode(), KeyCode.S)) {
                        rotateX.setAngle(rotateX.getAngle() + 
                                (event.isShiftDown() ? 5 : 0.1));
                    }
                });

        lightBase.translateXProperty().bind(sunSphere.translateXProperty());
        lightBase.translateYProperty().bind(sunSphere.translateYProperty());
        lightBase.translateZProperty().bind(sunSphere.translateZProperty());

        getChildren().addAll(sunSphere, mercurySphere, venusSphere,
                earthSphere, camera, lightBase);
    }

}

最佳答案 如果没有您希望实现的效果示例,很难提供答案,但这里有两个选项：

使用添加剂混合创建从太阳发出的粒子效果

使用高光贴图创建材质.

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