Camera.writeViewMatrixTo

Summary

Camera.writeViewMatrixTo writes the camera's f32 view matrix directly into the active WasmGPU transform store at a byte pointer.

Syntax

Camera.writeViewMatrixTo(outPtr: WasmPtr): void

Parameters

Name	Type	Required	Description
outPtr	WasmPtr	Yes	Byte address of storage for 16 consecutive f32 matrix elements.

Returns

void

Type Details

WasmPtr is a byte offset into the active WasmGPU transform store. The pointer must be four-byte aligned and refer to at least 64 writable bytes. The matrix is column-major and transforms world-space coordinates into view space.

Example

const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);
const camera = wgpu.createCamera.perspective();
camera.setWorldPosition(0, 2, 5).lookAt([0, 0, 0]);

const allocation = wgpu.driver.heap.allocF32(16);
try {
  camera.writeViewMatrixTo(allocation.ptr);
  console.log(allocation.view());
} finally {
  allocation.free();
}

Notes

outPtr must identify space for 16 f32 values in the active driver memory. Prefer writeViewMatrixToArray unless a workflow already owns compatible WebAssembly memory.

See Also

• Camera.writeViewMatrixToArray
• WasmGPU.driver