What is Clipping?
Two views of clipping:
- Clipping is a procedure for spatially partitioning geometric primitives,
according to their containment within some region.
Clipping can be used to:
- Distingish whether geometric primitivies are inside or outside
of a viewing frustum
- Distinguish whether geometric primitivies are inside or outside
of a picking frustum
- Detecting intersections between
primitives
- Clipping is a procedure for subdividing geometric primitives.
This view of clipping admits several other potential applications.
- Binning geometric primitives into spatial data structures.
- Computing analytical shadows.
- Computing
intersections between primitives
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