IRaytracablePrimitive Struct Reference
[External Interfaces]

Inheritance diagram for IRaytracablePrimitive:

List of all members.

Public Member Functions
virtual boolean MCCOMAPI	RayHit (RayHitParameters &params)=0
virtual MCCOMErr MCCOMAPI	IsInfiniteBB (boolean &isInfinite)=0

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Detailed Description

In addition to describing geometry a geometric primitive can define a custom ray-tracing routine rather than relying only on facets or patches. This is done by inheriting from IRaytracablePrimitive in addition to I3DExGeometricPrimitive (or TBasicPrimitive).

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Member Function Documentation

virtual MCCOMErr MCCOMAPI IRaytracablePrimitive::IsInfiniteBB (  boolean &  isInfinite  )  [pure virtual]

Sets a boolean to true if the object is infinite. Parameters: isInfinite  True on exit if the bounding box is infinite.

virtual boolean MCCOMAPI IRaytracablePrimitive::RayHit (  RayHitParameters &  params  )  [pure virtual]

Perform specific ray-tracing calculations instead of relying on the facets or patches. For example, a sphere can provide its intersection routine so the ray-tracing renders perfect spheres. Parameters: params  The parameters (ray, hit ...) Returns: True if there is a valid intersection, false otherwise

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The documentation for this struct was generated from the following file:

• I3dExPrimitive.h

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