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feat: bees and frogs

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This commit is contained in:
Dan Finch 2026-08-07 12:49:13 +02:00
parent 46e7070b6b
commit 16f205babe
13 changed files with 540 additions and 31 deletions
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13
app/render-worker.ts
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@ -1,6 +1,6 @@
import type { Framebuffer } from "../engine/render/Framebuffer"
import type { RenderConfig } from "../engine/render/RenderConfig"
import { renderBand, type Scene } from "./renderScene"
import { renderBand, MOB_FLOATS, type MobDraw, type Scene } from "./renderScene"
/** One-time setup: shared framebuffer + control/param buffers, the (cloned)
* scene, this worker's row band, and its index into the per-worker times array. */
@ -17,6 +17,7 @@ type Init = {
camSAB: SharedArrayBuffer
vpSAB: SharedArrayBuffer
visSAB: SharedArrayBuffer
mobSAB: SharedArrayBuffer
timesSAB: SharedArrayBuffer
index: number
}
@ -24,6 +25,7 @@ type Init = {
const FRAME = 0
const DONE = 1
const VIS = 2
const MOBVIS = 3
const ctx = globalThis as unknown as {
addEventListener: (type: "message", handler: (e: { data: Init }) => void) => void
@ -41,6 +43,7 @@ ctx.addEventListener("message", (e) => {
const cam = new Float64Array(m.camSAB)
const vp = new Float32Array(m.vpSAB)
const vis = new Int32Array(m.visSAB)
const mob = new Float32Array(m.mobSAB)
const times = new Float64Array(m.timesSAB)
const { scene, band, config, skyStep, index } = m
@ -54,7 +57,13 @@ ctx.addEventListener("message", (e) => {
const camera = { position: { x: cam[0], y: cam[1], z: cam[2] }, yaw: cam[3], pitch: cam[4], fov: cam[5] }
const count = Atomics.load(ctrl, VIS)
const visible = [...vis.subarray(0, count)]
renderBand(fb, scene, camera, vp, visible, config, skyStep, cam[6], band[0], band[1])
const mobCount = Atomics.load(ctrl, MOBVIS)
const mobDraws: MobDraw[] = []
for (let i = 0; i < mobCount; i++) {
const o = i * MOB_FLOATS
mobDraws.push({ kind: mob[o] === 1 ? "bee" : "frog", x: mob[o + 1], y: mob[o + 2], z: mob[o + 3], heading: mob[o + 4], scale: mob[o + 5] })
}
renderBand(fb, scene, camera, vp, visible, mobDraws, config, skyStep, cam[6], band[0], band[1])
times[index] = performance.now() - t0
Atomics.add(ctrl, DONE, 1)
}