Cylinder Class Reference
Representation of a vertical 3D cylinder enclosed in the unit box (-.5,-.5,-.5) to (.5,.5,.5). More...
#include <Cylinder.h>
Public Member Functions | |
| Cylinder () | |
| virtual | ~Cylinder () |
Intersection routines | |
| virtual real_t | getIntersection (const Ray &ray, SurfacePoint &pt) |
| Tests the given ray with this object for intersection. If a valid intersection exists, its "t" value will be returned and the given SurfacePoint will be initialized with enough data for this object to later fill in all relevant information lazily (world space normal at intersection point, uv coordinates, etc.). | |
| virtual bool | intersects (const Ray &ray, real_t tMax=INFINITY) |
| Used for occlusion/visibility testing where you don't necessarily care about anything other than whether or not an intersection exists. (generally faster than getIntersection). | |
Core functionality | |
| virtual void | preview () |
Protected Member Functions | |
| virtual void | _getUV (SurfacePoint &pt) const |
| virtual void | _getGeometricNormal (SurfacePoint &pt) const |
Protected Attributes | |
| GLUquadric * | m_quadric |
Detailed Description
Representation of a vertical 3D cylinder enclosed in the unit box (-.5,-.5,-.5) to (.5,.5,.5).
- Date:
- Fall 2008
Definition at line 17 of file Cylinder.h.
Constructor & Destructor Documentation
| Cylinder::Cylinder | ( | ) | [inline] |
Definition at line 19 of file Cylinder.h.
| virtual Cylinder::~Cylinder | ( | ) | [inline, virtual] |
Definition at line 23 of file Cylinder.h.
Member Function Documentation
| real_t Cylinder::getIntersection | ( | const Ray & | ray, | |
| SurfacePoint & | pt | |||
| ) | [virtual] |
Tests the given ray with this object for intersection. If a valid intersection exists, its "t" value will be returned and the given SurfacePoint will be initialized with enough data for this object to later fill in all relevant information lazily (world space normal at intersection point, uv coordinates, etc.).
- Note:
- if you only care about whether or not an intersection exists and don't actually need to know the exact intersection point, see the intersects method instead.
- Returns:
- the smallest positive "t" value of any intersections found, or INFINITY if no valid intersection exists
Implements Intersectable.
Definition at line 15 of file Cylinder.cpp.
Used for occlusion/visibility testing where you don't necessarily care about anything other than whether or not an intersection exists. (generally faster than getIntersection).
- Note:
- default implementation defers to getIntersection
- Returns:
- whether or not the given ray intersects this object with a positive "t" value greater than EPSILON and less than the given
tMax
Reimplemented from Intersectable.
Definition at line 79 of file Cylinder.cpp.
| void Cylinder::preview | ( | ) | [virtual] |
Display a crude OpenGL preview of this shape
- Note:
- Default implementation sets the ModelView matrix appropriately with respect to this Transformable's transformation
Reimplemented from Transformable.
Definition at line 172 of file Cylinder.cpp.
| void Cylinder::_getUV | ( | SurfacePoint & | pt | ) | const [protected, virtual] |
| void Cylinder::_getGeometricNormal | ( | SurfacePoint & | pt | ) | const [protected, virtual] |
Member Data Documentation
GLUquadric* Cylinder::m_quadric [protected] |
Definition at line 53 of file Cylinder.h.
The documentation for this class was generated from the following files:
Generated on 28 Feb 2009 for Milton by
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