Propane::Math::Frustum Class Reference

A solid that can be used to determine visibility information. More...

#include <Frustum.h>

List of all members.

Public Member Functions
void	calculate (GLfloat *modelView, GLfloat *projection)
	Generates a frustum from a given model view and projection matrix.
bool	isPointVisible (const Propane::Math::Vector3 &point)
	Check if a point is inside the viewing frustum.
bool	isSphereVisible (const Propane::Math::Vector3 &point, float radius)
	Check if a sphere is inside the viewing frustum.
bool	isBoxVisible (const Propane::Math::Vector3 &origin, float size)
	Check if a linearly-sized box is inside the viewing frustum.
bool	isAABBVisible (const Propane::Math::Vector3 &min, const Propane::Math::Vector3 &max)
	Check if an AABB (axis aligned bounding box) is inside the viewing frustum.

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Detailed Description

A solid that can be used to determine visibility information.

Examples:

UsingFrustum.cpp.

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Member Function Documentation

void Propane::Math::Frustum::calculate (  GLfloat *  modelView, GLfloat *  projection )  [inline]

Generates a frustum from a given model view and projection matrix. Parameters: modelView  The OpenGL model-view matrix. projection  The OpenGL projection matrix. Examples: UsingFrustum.cpp.

bool Propane::Math::Frustum::isAABBVisible (  const Propane::Math::Vector3 &  min, const Propane::Math::Vector3 &  max )  [inline]

Check if an AABB (axis aligned bounding box) is inside the viewing frustum. Parameters: min  One of the two points defined by the AABB. max  The other of the two points defined by the AABB. Returns: True if the AABB is visible, false otherwise.

bool Propane::Math::Frustum::isBoxVisible (  const Propane::Math::Vector3 &  origin, float  size )  [inline]

Check if a linearly-sized box is inside the viewing frustum. Parameters: origin  The centre point of the box, in world space. size  The linear size of the box, in world units. Returns: True if the box is visible, false otherwise.

bool Propane::Math::Frustum::isPointVisible (  const Propane::Math::Vector3 &  point  )  [inline]

Check if a point is inside the viewing frustum. param point The xyz location of the point, in world space. Returns: True if the point is inside the frustum, false otherwise.

bool Propane::Math::Frustum::isSphereVisible (  const Propane::Math::Vector3 &  point, float  radius )  [inline]

Check if a sphere is inside the viewing frustum. Parameters: point  The origin of the sphere, in world space. radius  The radius of the sphere, in world units. Returns: True if the sphere is inside the frustum, false otherwise. Examples: UsingFrustum.cpp.

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

• Frustum.h

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