You can check by enabling (or disabling) backface cull in max/maya/blender.
In most cases (and most 3d packages) you can visually notice when a polygon is inverted because it will be darker/grayer when selected.
You can check by enabling (or disabling) backface cull in max/maya/blender.
In most cases (and most 3d packages) you can visually notice when a polygon is inverted because it will be darker/grayer when selected.