Viewerframe Mode Refresh Hot

At its core, the ViewerFrame is the single, rendered image you see on your screen at any given moment. Think of it as a digital photograph taken by a virtual camera inside your 3D scene.

Pro Tip: Monitor your frame delta time (the time between ViewerFrames). In a “hot” system, this should be under 16ms for 60 FPS.

Create macros that switch mode AND force a refresh in one action. Example AutoHotkey script for Blender:

^!w::  ; Ctrl+Alt+W for Wireframe
Send, z  ; Open mode pie menu
Sleep, 50
Send, w  ; Select Wireframe
Send, F12  ; Force full viewport refresh (custom mapping)
return

Idempotent activation (pseudo-JS):

let currentInitId = null;
async function activateMode(instanceId, mode) 
  const initId = Symbol();
  currentInitId = initId;
// prepare resources
  await prepareResourcesFor(mode);
  if (currentInitId !== initId) return; // stale, abort
// atomically set mode in store
  store.setMode(instanceId, mode);
// finalize
  finalizeModeActivation(instanceId, mode);

Subscription cleanup:

function mountViewer() 
  const unsub = eventBus.subscribe('mode-change', handler);
  onUnmount(() => unsub());

Versioned async operations:

let modeVersion = 0;
function setModeAsync(mode) 
  const v = ++modeVersion;
  return doAsyncSetup(mode).then(result => 
    if (v !== modeVersion) return; // ignore stale
    applyMode(result);
  );

Debounce/coalesce:

const setModeDebounced = debounce((m) => setMode(m), 150);

Unique instance IDs:

const instanceId = `viewer-$++globalViewerCounter`;

function refreshViewerFrame() 
  const iframe = document.getElementById('viewerFrame');
  const loader = document.getElementById('loadingIndicator');
loader.style.display = 'block';
iframe.src = iframe.src;
iframe.onload = () => 
loader.style.display = 'none';
;
 viewerframe mode refresh hot

For those visualizing large point clouds (LiDAR) or real-time video inference, the ViewerFrame must refresh as new data streams in. A "hot" pipeline uses GPU direct memory access (DMA) to push frames without CPU bottlenecking.