User Manual

Table Of Contents
Normal/Tangents
Normals are imaginary lines perpendicular to each point on the surface of an object. They are
used to illustrate the exact direction and orientation of every polygon on 3D geometry. Knowing
the direction and orientation determines how the object gets shaded. Tangents are lines that
exists along the surface’s plane. These lines are tangent to a point on the surface. The tangent
lines are used to describe the direction of textures you apply to the surface of 3D geometry.
Scale: This slider increases or decreases the length of the vectors for both normals and
tangents.
Show Normals: Displays blue vectors typically extending outside the surface of the
geometry. These normal vectors help indicate how different areas of the surface are
illuminated based on the angle at which the light hits it.
Show Tangents: Displays green vectors for Y and red vectors of X. The X and Y vectors
represent the direction of the image or texture you are applying to the geometry.
Object ID
Use this slider to select which ID is used to create a mask from the object of an image. Use the
Sample button in the same way as the Color Picker to grab IDs from the image displayed in the
Viewer. The image or sequence must have been rendered from a 3D software package with
those channels included.
Common Materials Tab
Chapter – 80 3D Nodes 1744