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@@ -1774,7 +1774,8 @@ export class Mesh extends AbstractMesh implements IGetSetVerticesData {
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var sideOrientation: Nullable<number>;
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var sideOrientation: Nullable<number>;
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- if (!instanceDataStorage.isFrozen && this._effectiveMaterial.backFaceCulling) {
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+ if (!instanceDataStorage.isFrozen &&
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+ (this._effectiveMaterial.backFaceCulling || this.overrideMaterialSideOrientation !== null)) {
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let mainDeterminant = effectiveMesh._getWorldMatrixDeterminant();
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let mainDeterminant = effectiveMesh._getWorldMatrixDeterminant();
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sideOrientation = this.overrideMaterialSideOrientation;
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sideOrientation = this.overrideMaterialSideOrientation;
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if (sideOrientation == null) {
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if (sideOrientation == null) {
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