lmgl::scene::Frustum Class Reference

Frustum structure. More...

#include <frustum.hpp>

Public Types
enum	PlaneIndex {   Left = 0 , Right , Bottom , Top ,   Near , Far }
	Enumeration for the frustum planes. More...

Public Member Functions
void	update (const glm::mat4 &view_projection)
	Update the frustum planes from a view-projection matrix.
bool	contains_point (const glm::vec3 &point) const
	Check if a point is inside the frustum.
bool	contains_sphere (const BoundingSphere &sphere) const
	Check if a bounding sphere is inside the frustum.
bool	contains_aabb (const AABB &aabb) const
	Check if an Axis-Aligned Bounding Box (AABB) is inside the frustum.
const Plane &	get_plane (PlaneIndex index) const
	Get a specific frustum plane.

Detailed Description

Frustum structure.

Represents a view frustum defined by six planes (left, right, bottom, top, near, far). Provides methods for updating the frustum from a view-projection matrix and for checking containment of points, spheres, and AABBs.

Member Enumeration Documentation

PlaneIndex

enum lmgl::scene::Frustum::PlaneIndex

Enumeration for the frustum planes.

Defines indices for accessing the six planes of the frustum.

• Left: Left plane
• Right: Right plane
• Bottom: Bottom plane
• Top: Top plane
• Near: Near plane
• Far: Far plane

Member Function Documentation

contains_aabb()

bool lmgl::scene::Frustum::contains_aabb

(

const AABB &

aabb

)

const

Check if an Axis-Aligned Bounding Box (AABB) is inside the frustum.

Determines whether the specified AABB is contained within the frustum.

Parameters

aabb	The AABB to check.

Returns

True if the AABB is inside the frustum, false otherwise.

contains_point()

bool lmgl::scene::Frustum::contains_point

(

const glm::vec3 &

point

)

const

Check if a point is inside the frustum.

Determines whether the specified point is contained within the frustum.

Parameters

point

The point to check.

Returns

True if the point is inside the frustum, false otherwise.

contains_sphere()

bool lmgl::scene::Frustum::contains_sphere

(

const BoundingSphere &

sphere

)

const

Check if a bounding sphere is inside the frustum.

Determines whether the specified bounding sphere is contained within the frustum.

Parameters

sphere

The bounding sphere to check.

Returns

True if the sphere is inside the frustum, false otherwise.

get_plane()

const Plane & lmgl::scene::Frustum::get_plane ( PlaneIndex index ) const

inline

Get a specific frustum plane.

Retrieves the plane corresponding to the given index.

Parameters

index

The index of the plane to retrieve.

Returns

Reference to the requested Plane.

update()

void lmgl::scene::Frustum::update

(

const glm::mat4 &

view_projection

)

Update the frustum planes from a view-projection matrix.

Extracts the six frustum planes from the provided view-projection matrix.

Parameters

view_projection

The combined view-projection matrix.

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

• include/lmgl/scene/frustum.hpp
• src/scene/frustum.cpp