Function dequeueNextRenderTask

renderer.js:839–852

()

}
window._runScanSTLHomeImpl = runScanSTLHomeImpl;

// Add these queue-related variables
let renderQueue = [];
/** Lower values run first. Scan / off-grid work uses THUMB_PRIORITY_BACKGROUND so on-screen grid cells win. */
const THUMB_PRIORITY_BACKGROUND = 1e12;
/** Priorities at or above this are off-viewport grid rows (see computeThumbPriorityForScroll / refresh). */
const THUMB_PRIORITY_LOW_TIER_MIN = 2e9;
/** Extra delay after each low-priority render so visible/interactive work stays smooth. */
let RENDER_DELAY_BACKGROUND = 750;
/** When the queue has only off-screen work, cap parallel WebGL thumbs (foreground uses MAX_CONCURRENT_RENDERS). */
let MAX_CONCURRENT_RENDERS_BACKGROUND = 2;
let pendingThumbnails = new Set(); // Track files currently being rendered

function isLowPriorityThumbnailTask(task) {
  const p = task?.thumbPriority ?? THUMB_PRIORITY_BACKGROUND;
  return p >= THUMB_PRIORITY_LOW_TIER_MIN;
}