OBJ import options

Keep Normals

Specifies whether to preserve vertex normals when files are retrieved. When this option is on ON (the default), vertex normals are retrieved from the file and used by the renderer. When this option is on OFF, vertex normals are ignored, which means that they are recalculated during rendering.

NoteWarning: If vertex normals are retrieved, they are “frozen” and are not updated. Vertex level editing, such as moving one vertex in relation to its neighbors, can make the frozen normals invalid, so subsequent renderings will not be correct. However, object-level editing (such as translation, rotation, proportional scaling, or deleting entire polysets) does not cause these problems.

Input Units

Specifies the major linear unit for the incoming file.

Scale Factor

Specifies the scaling factor for this save. The default is 1.0.

Merge Vertices

Specifies whether vertices are considered for merging.

ON (the default)—vertices are merged if they are within the position tolerance.

OFF (the default)—vertices are not merged.

Position/Normal

POSITION—consider vertexes for merging based only on their positions. This is a less restrictive merge.

POSITION + NORMAL— consider vertexes for merging based on their positions and the angles of their normals. This is a more restrictive merge.

Position Tol. (units)

Specifies how close vertexes must be to be merged, in the current major linear units. The default is 0.0001 unit.

Normal Tol. (degrees)

Specifies how close normals must be to be merged, in degrees. The default is 1 degree.