class VisibilityRegion
Defined in:
The C4Regions.hVisibilityRegion class represents a convex region of space used for visibility testing.
Definition
class VisibilityRegion
Member Functions
VisibilityRegion::BoxVisible |
Determines whether a box is visible in a region. |
VisibilityRegion::QuadVisible |
Determines whether quad is visible in a region. |
VisibilityRegion::PolygonVisible |
Determines whether polygon is visible in a region. |
VisibilityRegion::SphereVisible |
Determines whether a sphere is visible in a region. |
VisibilityRegion::EllipsoidVisible |
Determines whether an ellipsoid is visible in a region. |
VisibilityRegion::CylinderVisible |
Determines whether a cylinder is visible in a region. |
Constructor
VisibilityRegion(Convexity *conv);
Description
The VisibilityRegion class represents a convex region of space that is bounded by a set of planes. These regions are often used for camera visibility testing, light source permeation, and shadow casting set determination. The VisibilityRegion class contains methods for testing whether various types of objects may intersect the region, providing basic culling functionality. Note that the visibility tests are not perfect and may return true in cases where the tested object lies completely outside the region but not completely on the negative side of any one plane.
See Also
