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Home : Tools & Menus : Palette : Object edit : Normal tools :
Object edit > Normal tools > Unify normalsForces all surface normals to point in one direction.
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This tool or menu item is used in the following pages.
 | How do I Make all normals consistent |
Modifies a collection of patches so that all normals across a set of adjacent surfaces point in the same direction. This helps to ensure that lighting is correct in renderings, and is also useful when modeling, and offsetting surfaces.
1 Choose Object Edit > Normal tools > Unify Normals.
You are prompted to:
Select input surfaces. When finished, click on Classify.
2 Pick all the surfaces to be unified, and then click the Classify button in the lower right corner of the active window.
Based on the Topology Distance tolerance value (set in 
Preferences > Construction Options, under the Tolerances: Topology sub-tab), the surfaces are grouped into sets of adjacent patches. Each set consists of those surface patches that are within the Topology Distance tolerance. The sets are drawn in different colors to help differentiate them.
A blue arrow shows the direction of the unified surface normal on each set. To change the direction of the surface normal, click on it.
3 When all surface normals are pointing in the correct direction, click the Unify button.
You can continue changing normal directions, then clicking Unify again, until you select another tool.
Unify Normals is a continuous function. To finish using this tool, select another tool.
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