Add basic code for 3D rotate effect

src/main/java/sh/ball/audio/effect/EffectType.java

@@ -10,5 +10,6 @@ public enum EffectType {
   WOBBLE,
   TRACE_MIN,
   TRACE_MAX,
-  SMOOTH
+  SMOOTH,
+  ROTATE_3D
 }

src/main/java/sh/ball/audio/effect/PerspectiveEffect.java

@@ -0,0 +1,36 @@
+package sh.ball.audio.effect;
+
+import sh.ball.engine.Vector3;
+import sh.ball.shapes.Vector2;
+
+// 3D rotation effect
+public class PerspectiveEffect extends PhaseEffect implements SettableEffect {
+
+  private double focalLength = 1.0;
+  private double zPos = 1.0;
+
+  public PerspectiveEffect(int sampleRate, double speed) {
+    super(sampleRate, speed);
+  }
+
+  public PerspectiveEffect(int sampleRate) {
+    this(sampleRate, 1);
+  }
+
+  @Override
+  public Vector2 apply(int count, Vector2 vector) {
+    Vector3 vertex = new Vector3(vector.x, vector.y, 0.0);
+    double theta = nextTheta();
+    vertex = vertex.rotate(new Vector3(0, theta, theta));
+
+    return new Vector2(
+      vertex.x * focalLength / (vertex.z - zPos),
+      vertex.y * focalLength / (vertex.z - zPos)
+    );
+  }
+
+  @Override
+  public void setValue(double value) {
+    zPos = 1.0 + (value - 0.5) * 3;
+  }
+}

src/main/java/sh/ball/gui/EffectType.java

@@ -1,5 +0,0 @@
-package sh.ball.gui;
-
-enum EffectType {
-  VECTOR_CANCELLING
-}

src/main/java/sh/ball/gui/controller/EffectsController.java

@@ -34,6 +34,7 @@ public class EffectsController implements Initializable, SubController {
   private Map<EffectType, Slider> effectTypes;
 
   private final WobbleEffect wobbleEffect;
+  private final PerspectiveEffect perspectiveEffect;
 
   @FXML
   private EffectComponentGroup vectorCancelling;
@@ -51,9 +52,12 @@ public class EffectsController implements Initializable, SubController {
   private EffectComponentGroup traceMax;
   @FXML
   private EffectComponentGroup traceMin;
+  @FXML
+  private EffectComponentGroup perspective;
 
   public EffectsController() {
     this.wobbleEffect = new WobbleEffect(DEFAULT_SAMPLE_RATE);
+    this.perspectiveEffect = new PerspectiveEffect(DEFAULT_SAMPLE_RATE);
   }
 
   private <K, V> Map<K, V> mergeEffectMaps(Function<EffectComponentGroup, Map<K, V>> map) {
@@ -90,6 +94,7 @@ public class EffectsController implements Initializable, SubController {
 
   public void setAudioDevice(AudioDevice device) {
     wobbleEffect.setSampleRate(device.sampleRate());
+    perspectiveEffect.setSampleRate(device.sampleRate());
     Map<ComboBox<AnimationType>, EffectAnimator> comboAnimatorMap = getComboBoxAnimatorMap();
     for (EffectAnimator animator : comboAnimatorMap.values()) {
       animator.setSampleRate(device.sampleRate());
@@ -118,6 +123,7 @@ public class EffectsController implements Initializable, SubController {
     initializeEffectTypes();
 
     wobble.controller.setAnimator(new EffectAnimator(DEFAULT_SAMPLE_RATE, wobbleEffect));
+    perspective.controller.setAnimator(new EffectAnimator(DEFAULT_SAMPLE_RATE, perspectiveEffect));
     traceMin.controller.setAnimator(new EffectAnimator(DEFAULT_SAMPLE_RATE, new ConsumerEffect(audioPlayer::setTraceMin)));
     traceMax.controller.setAnimator(new EffectAnimator(DEFAULT_SAMPLE_RATE, new ConsumerEffect(audioPlayer::setTraceMax)));
     vectorCancelling.controller.setAnimator(new EffectAnimator(DEFAULT_SAMPLE_RATE, new VectorCancellingEffect()));
@@ -148,7 +154,7 @@ public class EffectsController implements Initializable, SubController {
   }
 
   private List<EffectComponentGroup> effects() {
-    return List.of(vectorCancelling, bitCrush, verticalDistort, horizontalDistort, wobble, smoothing, traceMin, traceMax);
+    return List.of(vectorCancelling, bitCrush, verticalDistort, horizontalDistort, wobble, smoothing, traceMin, traceMax, perspective);
   }
 
   @Override

src/main/resources/css/main.css

@@ -54,6 +54,16 @@
     -fx-background-radius: 0;
 }
 
+.scroll-pane .scroll-bar:vertical {
+    -fx-unit-increment: 10 ;
+    -fx-block-increment: 50 ;
+}
+
+.scroll-pane .scroll-bar:horizontal {
+    -fx-unit-increment: 5 ;
+    -fx-block-increment: 20 ;
+}
+
 .titled-pane > .title > .arrow-button .arrow {
     -fx-background-color: white, white;
     -fx-background-insets: 1 0 -1 0, 0;

src/main/resources/fxml/effects.fxml

@@ -1,26 +1,33 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
 <?import javafx.geometry.Insets?>
+<?import javafx.scene.control.ScrollPane?>
 <?import javafx.scene.layout.AnchorPane?>
 <?import javafx.scene.layout.VBox?>
 <?import sh.ball.gui.components.EffectComponentGroup?>
 
-<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="355.0" prefWidth="606.0" xmlns="http://javafx.com/javafx/17" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sh.ball.gui.controller.EffectsController">
+
-    <children>
+<ScrollPane hbarPolicy="NEVER" prefHeight="381.0" prefWidth="608.0" xmlns="http://javafx.com/javafx/17" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sh.ball.gui.controller.EffectsController">
-      <VBox>
+   <content>
-         <children>
+      <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="380.0" prefWidth="606.0">
-              <EffectComponentGroup fx:id="vectorCancelling" label="vectorCancelling" max="1.0" min="0.0" increment="0.005" name="Vector cancelling" type="VECTOR_CANCELLING" value="0.11111111" />
+          <children>
-              <EffectComponentGroup fx:id="bitCrush" label="bitCrush" max="1.0" min="0.0" increment="0.005" name="Bit crush" type="BIT_CRUSH" value="0.6666666" />
+            <VBox>
-              <EffectComponentGroup fx:id="verticalDistort" label="verticalDistort" max="1.0" min="0.0" increment="0.005" name="Vertical shift" type="VERTICAL_DISTORT" value="0.2" />
+               <children>
-              <EffectComponentGroup fx:id="horizontalDistort" label="horizontalDistort" max="1.0" min="0.0" increment="0.005" name="Horizontal shift" type="HORIZONTAL_DISTORT" value="0.2" />
+                    <EffectComponentGroup fx:id="vectorCancelling" increment="0.005" label="vectorCancelling" max="1.0" min="0.0" name="Vector cancelling" type="VECTOR_CANCELLING" value="0.11111111" />
-              <EffectComponentGroup fx:id="wobble" label="wobble" max="1.0" min="0.0" increment="0.005" name="Wobble" type="WOBBLE" value="0.2" />
+                    <EffectComponentGroup fx:id="bitCrush" increment="0.005" label="bitCrush" max="1.0" min="0.0" name="Bit crush" type="BIT_CRUSH" value="0.6666666" />
-              <EffectComponentGroup fx:id="smoothing" label="smoothing" max="1.0" min="0.0" increment="0.005" name="Smoothing" type="SMOOTH" value="0.125" />
+                    <EffectComponentGroup fx:id="verticalDistort" increment="0.005" label="verticalDistort" max="1.0" min="0.0" name="Vertical shift" type="VERTICAL_DISTORT" value="0.2" />
-              <EffectComponentGroup fx:id="traceMax" label="traceMax" max="1.0" min="0.0" increment="0.005" name="Trace max" type="TRACE_MAX" value="0.5" />
+                    <EffectComponentGroup fx:id="horizontalDistort" increment="0.005" label="horizontalDistort" max="1.0" min="0.0" name="Horizontal shift" type="HORIZONTAL_DISTORT" value="0.2" />
-              <EffectComponentGroup fx:id="traceMin" label="traceMin" max="1.0" min="0.0" increment="0.005" name="Trace min" type="TRACE_MIN" value="0.5" />
+                    <EffectComponentGroup fx:id="wobble" increment="0.005" label="wobble" max="1.0" min="0.0" name="Wobble" type="WOBBLE" value="0.2" />
-         </children>
+                    <EffectComponentGroup fx:id="smoothing" increment="0.005" label="smoothing" max="1.0" min="0.0" name="Smoothing" type="SMOOTH" value="0.125" />
-         <padding>
+                    <EffectComponentGroup fx:id="traceMax" increment="0.005" label="traceMax" max="1.0" min="0.0" name="Trace max" type="TRACE_MAX" value="0.5" />
-            <Insets top="5.0" />
+                    <EffectComponentGroup fx:id="traceMin" increment="0.005" label="traceMin" max="1.0" min="0.0" name="Trace min" type="TRACE_MIN" value="0.5" />
-         </padding>
+                    <EffectComponentGroup fx:id="perspective" increment="0.005" label="perspective" max="1.0" min="0.0" name="3D Rotation" type="ROTATE_3D" value="0.5" />
-      </VBox>
+               </children>
-    </children>
+               <padding>
-</AnchorPane>
+                  <Insets top="5.0" />
+               </padding>
+            </VBox>
+          </children>
+      </AnchorPane>
+   </content>
+</ScrollPane>