Syntax:

aalevelmin = <integer> ;

Option:

None

Range:

0 to 6. If a different value is specified, the system will use the next highest valid number, or 6 if the number input is too large. No message is given.

Default:

1

Purpose:

Determines the minimum number of subdivisions of a pixel.

Comments:

This limits the minimum number of subdivisions (rays), but does not determine the actual number used. That number depends upon aathreshold and upon the actual scene being rendered. That is, the anti-aliasing is performed adaptively, and only the rays (subdivisions) required to meet the specified criteria are cre-ated.

A setting of 0 prevents subdivision and generates 1 ray for each pixel. A setting of 1 also prevents subdivision, but generates 4 rays for each pixel. A setting of 2 allows 1 subdivision and up to 9 rays for each pixel. A setting of 4 allows 2 sub-divisions and up to 25 rays for each pixel. A setting of 8 allows 3 subdivisions and up to 81 rays for each pixel.

Example:

aalevelmin = 2;