Reverse the normals on a mesh or mesh component
How to reverse the direction of the normals on mesh components, or on the whole mesh.
Show mismatched normal directions
Click the Multi Color icon.
Click the small arrowhead to open the options section.
Turn on the new Show Orientation option.
If mesh components facing in the same direction (either toward or away from the camera) are shaded in both blue and yellow, your model exhibits mismatched normal directions.
Reverse the direction of normals on a component
In the Mesh tool palette, click the Reverse Mesh Orientation tool
.All meshes are shaded in blue and/or yellow. Blue indicates components that have a normal pointing toward the camera, and yellow, away from the camera.
Select the component that you wish to reverse.
Click the Reverse Component button.
The direction of the normals is reversed on the component. The shading color changes.
Click Reverse Component again to undo the operation, or select another component to reverse normals on.
To reverse the normal direction on the whole mesh, click the Reverse Mesh button.
Note:When reversing a component, we reverse the winding (that is the order) of the vertices to cause the normal to change direction. When reversing the whole mesh, we simply change the value of a flag (boolean value) and no reverse winding is done.