er</span></td><td class="attributes">&lt;optional><br></td><td class="default">0</td><td class="description last"></td></tr></tbody></table></div><dl class="details"><div class="details-item-container"><dt class="tag-source bold">Source</dt><dd class="tag-source"><ul><li><a href="src_engineTileLayer.js.html">src/engineTileLayer.js</a>, <a href="src_engineTileLayer.js.html#line40">line 40</a></li></ul></dd></div></dl><h3 class="name has-anchor" id=".tileCollisionRaycast"><span class="type-signature">(static)