Differentiate between face normal and vertex normal.

1.	Differentiate between face normal and vertex normal.
Answer» Face Normal: The front of a polygon’s face is graphically represented using a vector called the polygons normal. The order of vertices around the face determine the direction of the face (whether aside of the polygon is the front or the back).For example, if you place vertices in a clockwise direction, the face normal points downward. If you place vertices in a counter-clockwise direction, the face normal points upward. When you shade or render polygons, the normal determine how light reflects from the surface and the shading that results Vertex Normal: Vertex normals determine the visual smoothing between polygon faces. Unlike face normals, they are not intrinsic to the polygon, but rather reflect how Maya renders the polygons in smooth shaded mode. Vertex normals appear as lines projecting from the vertex, one for each face that shares the vertex.

Answer»

Face Normal:

The front of a polygon’s face is graphically represented using a vector called the polygons normal. The order of vertices around the face determine the direction of the face (whether aside of the polygon is the front or the back).For example, if you place vertices in a clockwise direction, the face normal points downward. If you place vertices in a counter-clockwise direction, the face normal points upward. When you shade or render polygons, the normal determine how light reflects from the surface and the shading that results

Vertex Normal:

Vertex normals determine the visual smoothing between polygon faces. Unlike face normals, they are not intrinsic to the polygon, but rather reflect how Maya renders the polygons in smooth shaded mode. Vertex normals appear as lines projecting from the vertex, one for each face that shares the vertex.

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