[Home](./index.md) > [three-loader-3dtiles](./three-loader-3dtiles.md) > [LoaderOptions](./three-loader-3dtiles.loaderoptions.md) > [preloadTilesCount](./three-loader-3dtiles.loaderoptions.preloadtilescount.md) ## LoaderOptions.preloadTilesCount property When using a three.js loading manager, do not call `onLoad` until this number of tiles were loaded - Default: `undefined` Signature: ```typescript preloadTilesCount?: number; ```