TKE_Cutting_Plane

Opcode

ASCII	/
Hexadecimal	2F
Decimal	47

Operands

Variable geometry, Long count,

(count)x[ Float a, Float b, Float c, Float d ]

count	number of cutting planes
a, b, c, d	specification of cutting plane

Notes

A cutting plane is defined by the standard plane equation ax+by+cz+d=0. The normal component of the plane (a,b,c) points toward the side which is removed.

A cutting section is defined as two or more cutting planes defined as a group. Where separate cutting planes trim away more of the scene, additional planes in a cutting section trim away less of the scene. For example, three perpendicular planes defined together as a section removes one octant of the scene, while those same three planes defined separately would only leave an octant.

The count for sutting sections was added in HSF version 13.05; older versions only support individual cutting planes and reading or writing should use an implied count of one.