31 lines
865 B
JavaScript
31 lines
865 B
JavaScript
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var toGeometry = function (bg) {
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// The following snipped is from Mattatz - Masatatsu Nakamura http://mattatz.org
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var attrib = bg.getAttribute('position');
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if(attrib === undefined) {
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throw new Error('a given BufferGeometry object must have a position attribute.');
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}
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var positions = attrib.array;
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var vertices = [];
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for(var i = 0, n = positions.length; i < n; i += 3) {
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var x = positions[i];
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var y = positions[i + 1];
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var z = positions[i + 2];
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vertices.push(new THREE.Vector3(x, y, z));
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}
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var faces = [];
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for(var i = 0, n = vertices.length; i < n; i += 3) {
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faces.push(new THREE.Face3(i, i + 1, i + 2));
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}
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var geometry = new THREE.Geometry();
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geometry.vertices = vertices;
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geometry.faces = faces;
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geometry.computeFaceNormals();
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return geometry;
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}
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