Ampandheaust
9768765d74
Provide the single-loadout Scene API, SAB-backed meshes, cameras, materials, lights, workers, post effects, and tutorial playgrounds. Batch matching row growth so active GPU loadouts refresh once. Amp-Thread-ID: https://ampcode.com/threads/T-01a01380-b478-77d0-84a0-102880a5c5ae Co-authored-by: Heaust Azure <heaust.azure@gmail.com>
40 lines
1.3 KiB
TypeScript
40 lines
1.3 KiB
TypeScript
import { Node, type NodeOptions } from "../Node";
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import type { Scene } from "../Scene";
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export type RectAreaLightOptions = NodeOptions & {
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color?: ArrayLike<number>;
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intensity?: number;
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width?: number;
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height?: number;
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};
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/** Rectangular emitter data for the default clustered forward graph's LTC path. */
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export class RectAreaLight extends Node {
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readonly technique = "ltc";
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constructor(scene: Scene, options: RectAreaLightOptions = {}) {
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super(scene, options);
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const nodeReady = this.ready;
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this.ready = nodeReady.then(async () => {
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const array = await scene.ensureRows("rectAreaLights", this.id + 1, 48, "f32");
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array.row(this.id).set([
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...Array.from(options.color ?? [1, 1, 1]), options.intensity ?? 1,
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options.width ?? 1, options.height ?? 1, 1, 0,
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]);
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return this;
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});
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}
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get width() { return this.scene.array("rectAreaLights").row(this.id)[4]; }
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set width(value: number) { this.scene.array("rectAreaLights").row(this.id)[4] = value; }
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get height() { return this.scene.array("rectAreaLights").row(this.id)[5]; }
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set height(value: number) { this.scene.array("rectAreaLights").row(this.id)[5] = value; }
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override async dispose() {
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await this.ready;
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if (this.disposed) return;
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this.scene.array("rectAreaLights").row(this.id).fill(0);
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await super.dispose();
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}
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}
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