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@@ -113,7 +113,7 @@ THREE.LatheBufferGeometry = function ( points, segments, phiStart, phiLength ) {
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this.computeVertexNormals();
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this.computeVertexNormals();
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- // if the geometry is closed, we need to merge the first and last normal of a vertex row
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+ // if the geometry is closed, we need to average the normals along the seam.
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// because the corresponding vertices are identical (but still have different UVs).
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// because the corresponding vertices are identical (but still have different UVs).
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if( phiLength === Math.PI * 2 ) {
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if( phiLength === Math.PI * 2 ) {
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@@ -138,7 +138,7 @@ THREE.LatheBufferGeometry = function ( points, segments, phiStart, phiLength ) {
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n2.y = normals[ base + j + 1 ];
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n2.y = normals[ base + j + 1 ];
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n2.z = normals[ base + j + 2 ];
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n2.z = normals[ base + j + 2 ];
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- // merge normals
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+ // average normals
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n.addVectors( n1, n2 ).normalize();
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n.addVectors( n1, n2 ).normalize();
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// assign the new values to both normals
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// assign the new values to both normals
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Mugen87