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@@ -1303,8 +1303,10 @@
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var faceNormal = Vector3.Zero();
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var vertexNormali1 = Vector3.Zero();
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- var vertexNormali2 = Vector3.Zero();
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- var vertexNormali3 = Vector3.Zero();
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+
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+ for (index = 0; index < positions.length; index++) {
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+ normals[index] = 0.0;
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+ }
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// indice triplet = 1 face
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var nbFaces = indices.length / 3;
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@@ -1324,35 +1326,15 @@
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Vector3.CrossToRef(p1p2, p3p2, faceNormal);
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faceNormal.normalize();
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- // All intermediate results are stored in the normals array :
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- // get the normals at i1, i2 and i3 indexes
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- normals[i1 * 3] = normals[i1 * 3] || 0.0;
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- normals[i1 * 3 + 1] = normals[i1 * 3 + 1] || 0.0;
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- normals[i1 * 3 + 2] = normals[i1 * 3 + 2] || 0.0;
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- normals[i2 * 3] = normals[i2 * 3] || 0.0;
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- normals[i2 * 3 + 1] = normals[i2 * 3 + 1] || 0.0;
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- normals[i2 * 3 + 2] = normals[i2 * 3 + 2] || 0.0;
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- normals[i3 * 3] = normals[i3 * 3] || 0.0;
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- normals[i3 * 3 + 1] = normals[i3 * 3 + 1] || 0.0;
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- normals[i3 * 3 + 2] = normals[i3 * 3 + 2] || 0.0;
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- // make intermediate vectors3 from normals values
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- Vector3.FromFloatsToRef(normals[i1 * 3], normals[i1 * 3 + 1], normals[i1 * 3 + 2], vertexNormali1);
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- Vector3.FromFloatsToRef(normals[i2 * 3], normals[i2 * 3 + 1], normals[i2 * 3 + 2], vertexNormali2);
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- Vector3.FromFloatsToRef(normals[i3 * 3], normals[i3 * 3 + 1], normals[i3 * 3 + 2], vertexNormali3);
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- // add the current face normals to these intermediate vectors3
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- vertexNormali1 = vertexNormali1.addInPlace(faceNormal);
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- vertexNormali2 = vertexNormali2.addInPlace(faceNormal);
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- vertexNormali3 = vertexNormali3.addInPlace(faceNormal);
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- // store back intermediate vectors3 into the normals array
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- normals[i1 * 3] = vertexNormali1.x;
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- normals[i1 * 3 + 1] = vertexNormali1.y;
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- normals[i1 * 3 + 2] = vertexNormali1.z;
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- normals[i2 * 3] = vertexNormali2.x;
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- normals[i2 * 3 + 1] = vertexNormali2.y;
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- normals[i2 * 3 + 2] = vertexNormali2.z;
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- normals[i3 * 3] = vertexNormali3.x;
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- normals[i3 * 3 + 1] = vertexNormali3.y;
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- normals[i3 * 3 + 2] = vertexNormali3.z;
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+ normals[i1 * 3] += faceNormal.x;
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+ normals[i1 * 3 + 1] += faceNormal.y;
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+ normals[i1 * 3 + 2] += faceNormal.z;
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+ normals[i2 * 3] += faceNormal.x;
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+ normals[i2 * 3 + 1] += faceNormal.y;
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+ normals[i2 * 3 + 2] += faceNormal.z;
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+ normals[i3 * 3] += faceNormal.x;
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+ normals[i3 * 3 + 1] += faceNormal.y;
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+ normals[i3 * 3 + 2] += faceNormal.z;
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}
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// last normalization
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jbousquie