Issue on “single touch” panning on mobile devices and touch screens.

panning with the left mouse button (rotating is disabled)

app.controls.enableRotate = false;
app.controls.mouseButtons.PAN = 0;
app.controls.mouseButtons.ROTATE = 2;

Eugene Zos wrote:

but touch controls are nowhere to be found

Panning and zooming are triggered only when the second touch event occures. To force panning instead rotating you need to patch v3d.js (it’s a little complicated task) or you can use the separate class OrbitControls from THREE.js

These two functions check the number of touches

function onTouchStart(event)
function onTouchMove(event)

switch (event.touches.length)

The functions handleTouchStartDollyPan(event) and handleTouchMoveDollyPan(event) require the second touch event and they will throw an error if you try to call them with a single touch only.