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Feature: waving projection screen

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Dejvino 2025-12-30 21:52:17 +00:00
parent 3dcfdaff5a
commit 94ae337e96
1 changed files with 26 additions and 1 deletions
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27
party-stage/src/scene/projection-screen.js
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@ -95,6 +95,7 @@ export class ProjectionScreen extends SceneFeature {
super(); super();
projectionScreenInstance = this; projectionScreenInstance = this;
this.isVisualizerActive = false; this.isVisualizerActive = false;
this.originalPositions = null;
sceneFeatureManager.register(this); sceneFeatureManager.register(this);
} }
@ -125,9 +126,11 @@ export class ProjectionScreen extends SceneFeature {
// 16:9 Aspect Ratio, large size // 16:9 Aspect Ratio, large size
const width = 10; const width = 10;
const height = width * (9 / 16); const height = width * (9 / 16);
const geometry = new THREE.PlaneGeometry(width, height); const geometry = new THREE.PlaneGeometry(width, height, 32, 32);
// Initial black material // Initial black material
this.originalPositions = geometry.attributes.position.clone();
const material = new THREE.MeshBasicMaterial({ color: 0x000000 }); const material = new THREE.MeshBasicMaterial({ color: 0x000000 });
this.mesh = new THREE.Mesh(geometry, material); this.mesh = new THREE.Mesh(geometry, material);
@ -151,6 +154,28 @@ export class ProjectionScreen extends SceneFeature {
update(deltaTime) { update(deltaTime) {
updateScreenEffect(); updateScreenEffect();
// Wobble Logic
if (this.mesh && this.originalPositions) {
const time = state.clock.getElapsedTime();
const waveSpeed = 0.5;
const waveFrequency = 1.2;
const waveAmplitude = 0.3;
// same as stage-curtain ^^^
const positions = this.mesh.geometry.attributes.position;
for (let i = 0; i < positions.count; i++) {
const originalX = this.originalPositions.getX(i);
const originalZ = this.originalPositions.getZ(i);
const zOffset = Math.sin(originalX * waveFrequency + time * waveSpeed) * waveAmplitude;
positions.setZ(i, originalZ + zOffset);
}
positions.needsUpdate = true;
this.mesh.geometry.computeVertexNormals();
}
if (this.isVisualizerActive && state.tvScreen.material.uniforms) { if (this.isVisualizerActive && state.tvScreen.material.uniforms) {
state.tvScreen.material.uniforms.u_time.value = state.clock.getElapsedTime(); state.tvScreen.material.uniforms.u_time.value = state.clock.getElapsedTime();
const beat = (state.music && state.music.beatIntensity) ? state.music.beatIntensity : 0.0; const beat = (state.music && state.music.beatIntensity) ? state.music.beatIntensity : 0.0;