NachoToast

/*
Translates normalised device coordinates (NCD) to world coordinates.

Calculate NCD using mouseMove/pointerMove event listeners:
    mouseX = (e.clientX / window.innerWidth) * 2 - 1;
    mouseY = -(e.clientY / window.innerHeight) * 2 + 1;

You can then test if it works by setting up a camera and a cursor mesh object in the scene,
copying its position from the return value every animation frame:
    cursorMesh.position.copy(getCursorWorldCoordinates());