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WasmGPU | Documentation

WasmGPU.frameArena.allocF32

WasmGPU.frameArena.allocF32¶

Summary¶

WasmGPU.frameArena.allocF32 allocates contiguous float32 storage in the global frame arena. It returns a raw pointer; use WasmGPU.driver.view(Float32Array, ptr, len) to access values.

Syntax¶

WasmGPU.frameArena.allocF32(len: number): number
const ptr = wgpu.frameArena.allocF32(len);

Parameters¶

Name	Type	Required	Description
`len`	`number`	Yes	Number of `float32` elements to allocate.

Returns¶

number - Pointer to the first float32 element.

Notes¶

This method is a convenience for transient float32 storage, but it still returns a raw pointer.
Use wgpu.driver.frame.allocF32(...) instead when you want a WasmSlice<Float32Array> with epoch-aware isAlive() and assertAlive() checks.

Example¶

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

const ptr = wgpu.frameArena.allocF32(16);
const m = wgpu.driver.view(Float32Array, ptr, 16);
m.set([1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1]);

See Also¶