Function initMeshBuffers

viewer/js/three.js:18684–18811

( geometryGroup, object )

	};

	function initMeshBuffers ( geometryGroup, object ) {

		var geometry = object.geometry,
			faces3 = geometryGroup.faces3,

			nvertices = faces3.length * 3,
			ntris     = faces3.length * 1,
			nlines    = faces3.length * 3,

			material = getBufferMaterial( object, geometryGroup );

		geometryGroup.__vertexArray = new Float32Array( nvertices * 3 );
		geometryGroup.__normalArray = new Float32Array( nvertices * 3 );
		geometryGroup.__colorArray = new Float32Array( nvertices * 3 );
		geometryGroup.__uvArray = new Float32Array( nvertices * 2 );

		if ( geometry.faceVertexUvs.length > 1 ) {

			geometryGroup.__uv2Array = new Float32Array( nvertices * 2 );

		}

		if ( geometry.hasTangents ) {

			geometryGroup.__tangentArray = new Float32Array( nvertices * 4 );

		}

		if ( object.geometry.skinWeights.length && object.geometry.skinIndices.length ) {

			geometryGroup.__skinIndexArray = new Float32Array( nvertices * 4 );
			geometryGroup.__skinWeightArray = new Float32Array( nvertices * 4 );

		}

		var UintArray = extensions.get( 'OES_element_index_uint' ) !== null && ntris > 21845 ? Uint32Array : Uint16Array; // 65535 / 3

		geometryGroup.__typeArray = UintArray;
		geometryGroup.__faceArray = new UintArray( ntris * 3 );
		geometryGroup.__lineArray = new UintArray( nlines * 2 );

		var m, ml;

		if ( geometryGroup.numMorphTargets ) {

			geometryGroup.__morphTargetsArrays = [];

			for ( m = 0, ml = geometryGroup.numMorphTargets; m < ml; m ++ ) {

				geometryGroup.__morphTargetsArrays.push( new Float32Array( nvertices * 3 ) );

			}

		}

		if ( geometryGroup.numMorphNormals ) {

			geometryGroup.__morphNormalsArrays = [];