createTransform#scalePtr¶

Summary¶

createTransform#scalePtr returns the WebAssembly memory pointer to this transform's local scale vector. The pointer references three contiguous f32 values (sx, sy, sz). Use this for read-only WASM-level access or external compute interop. Writing through the pointer bypasses the transform's JavaScript value and dirty tracking; update scale through setScale() or setUniformScale().

Syntax¶

WasmGPU.createTransform().scalePtr: WasmPtr
const ptr = transform.scalePtr;

Parameters¶

This API does not take parameters.

Returns¶

WasmPtr - Byte offset in WebAssembly memory for local scale components.

Reacquire both the pointer and its typed view immediately before use. Transform-store capacity growth can relocate the backing arrays, WebAssembly memory growth invalidates existing typed-array views, and dispose() releases the slot.

Type Details¶

type WasmPtr = number;

Example¶

const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);

const t = wgpu.createTransform().setScale(2, 3, 4);
const scl = wgpu.driver.view(Float32Array, t.scalePtr, 3);

console.log(Array.from(scl));