JavaFX 灯光效果 - 芒果文档

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📜 JavaFX 灯光效果

📅 最后修改于: 2020-10-14 01:43:07 🧑 作者: Mango

JavaFX灯光效果

此效果用于减轻光源中的节点。有多种光源，即点光源，远距离光源和点光源。类javafx.scene.effect.Lighting表示照明效果。我们需要实例化此类，以便在节点上产生适当的效果。

物产

下表描述了该类的属性以及setter方法。

Property	Description	Setter Methods
bumpInput	It is a Effect object type property. It represents the Bump map input for the effect.	setBumpInput(Effect value)
contentInput	It is a Effect object type property. It represents the content input for the Effect.	setContentInput(Effect value)
diffuseConstant	It is a Double type property. It represents the diffuse constant.	setDiffuseConstant(Double value)
light	It is a Light object type property. It represents the light source for the effect.	setLight(Light value)
specularConstant	It is a double type property. It represents specular constant.	setSpecularConstant(double value)
specularExponent	It is a double type property. It represents Specular Exponent.	setSpecularExponent(double value)
surfaceScale	It is double type property. It represents Surface scale of the light.	setSurfaceScale(double value)

建设者

该类包含两个构造函数。

public Lighting()：使用光源的默认值创建一个Lighting的新实例。
public Lighting(Light light)：创建一个具有指定光源值的Lighting的新实例。

例：

package application;
import javafx.application.Application; 
import javafx.scene.Group; 
import javafx.scene.Scene; 
import javafx.scene.effect.Lighting;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.paint.Color; 
import javafx.stage.Stage; 
import javafx.scene.text.Font; 
import javafx.scene.text.FontWeight; 
import javafx.scene.text.Text; 

public class LightingExample1 extends Application { 
@Override
public void start(Stage stage) {  
Text text = new Text();       
text.setFont(Font.font(null, FontWeight.BOLD, 35));        
text.setX(60); 
text.setY(100); 
text.setText("Welcome to JavaTpoint");        
text.setFill(Color.GREEN);   
Image img = new Image("https://www.javatpoint.com/operating-system/images/operating-system-tutorial.png");
ImageView imgview = new ImageView(img);
imgview.setX(150);
imgview.setY(200);
Lighting lighting = new Lighting(); 
text.setEffect(lighting);       
imgview.setEffect(lighting); 
Group root = new Group(text,imgview);   
Scene scene = new Scene(root, 580, 420);  
stage.setTitle("lighting effect example");  
stage.setScene(scene);
stage.show();         
} 
public static void main(String args[]){ 
launch(args); 
} 
}