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perf: faster still

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This commit is contained in:
Dan Finch 2026-08-04 19:12:09 +02:00
parent ef5029da1d
commit 67cd54fe33
8 changed files with 280 additions and 203 deletions
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19
engine/scene/Boulder.ts
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@ -1,5 +1,5 @@
import type { Vec3 } from "../math/Vec3"
import type { Mesh } from "./Mesh"
import { STRIDE, type Mesh } from "./Mesh"
const TAU = Math.PI * 2
@ -37,7 +37,7 @@ export namespace Boulder {
const cy = boulder.position.y + sy * 0.55
const jitter = jitterGrid(seg, rings, rand)
const start = mesh.vertices.length
const start = mesh.verts.length / STRIDE
for (let ir = 0; ir <= rings; ir++) {
const phi = (ir / rings) * Math.PI
const cyv = Math.cos(phi)
@ -45,14 +45,13 @@ export namespace Boulder {
for (let is = 0; is <= seg; is++) {
const theta = (is / seg) * TAU
const j = jitter[ir][is]
mesh.vertices.push({
pos: {
x: cx + crv * Math.cos(theta) * sx * j,
y: cy + cyv * sy * j,
z: cz + crv * Math.sin(theta) * sz * j,
},
uv: { x: (is / seg) * 1.5, y: (ir / rings) * 1.5 },
})
mesh.verts.push(
cx + crv * Math.cos(theta) * sx * j,
cy + cyv * sy * j,
cz + crv * Math.sin(theta) * sz * j,
(is / seg) * 1.5,
(ir / rings) * 1.5,
)
}
}
const row = seg + 1