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1 Maya 3D Tutorial Modeling - hard and soft edges of vertex normals on Thu Oct 09, 2014 1:19 am

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We generally have a concept opposite normals, vertex normals but know relatively little. In fact, the real control elements of vertex normals face relationships.

To talk about the hard and soft edges of vertex normals today.
1. Show vertex normals.
Generate a box, select the display> custom polygon display, check the vertices> normals, execution.

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Box on each vertex there are three vertex normals. This is a total of three lines is actually a normal direction of the vertex of the surface 3.
When the vertex normals are not uniform, the display would be hard-edged objects between each face.

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Select edit ploygon> normals> soften / harden (hard and soft side), click on all soft, execution.

vertices on each vertex normals are unified into a box. The relationship between the surface and the surface also changes, becomes soft edge display.
And when face to face with a twist angle between the larger, the more readily when displayed blackened side, after which the vertex normals and unity, the relationship between surface and camera related.

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Hard and soft edges operations can operate for an object, you can also pair of vertices, edges, faces these sub-objects to operate.

Hard and soft edges and surfaces can angle between opposite also be set, with some selected set of hard and soft edges.

Actual use:
The following model is completed with a cylinder out, and now it's surface looks very strange, very confusing situation of hard and soft edges. This situation is very common, especially exturde, split and other tools, will change the status of the hard and soft edges of objects.

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Analysis: This is in the vertical direction of the object is cylindrical, to maintain smooth display; while the horizontal direction requires hard knuckle effect. And select edit ploygon> normals> soften / harden (hard and soft edges), the angle to 90 degrees below (this value is less than the angle of your discount number), executed.

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Hard and soft edges setting machinery, construction, props and other objects are very helpful. For smooth objects can be equally effective.
In polygons> smooth dialog box, select keep hard edges, this set of hard and soft edges smooth]

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