Box3

Axis-aligned bounding box defined by minimum and maximum corners.

[Box3](/reference/math/box3) represents a 3D volume bounded by two corners: min and max. It is used for spatial queries, frustum culling, and bounding volume computations. All operations assume the box is axis-aligned and defined in local space.

Properties

max Vector3

Vector3 max { std::numeric_limits<float>::lowest() }

Maximum corner of the box.

min Vector3

Vector3 min { std::numeric_limits<float>::max() }

Minimum corner of the box.

Functions

ApplyTransform() auto

auto vglx::Box3::ApplyTransform(const Matrix4 &transform)

Parameter	Description
transform	4x4 matrix to apply to the box.

Transforms the box by the given matrix. The resulting box is the axis-aligned bounding box that encloses the transformed corners of the original box.

Box3() constexpr

vglx::Box3::Box3(const Vector3 &v_min, const Vector3 &v_max)

Parameter	Description
v_min	Minimum point.
v_max	Maximum point.

Constructs a Box3 object from minimum and maximum corners.

Center() auto

auto vglx::Box3::Center() const

Returns the center point of the box.

ExpandWithPoint() auto

auto vglx::Box3::ExpandWithPoint(const Vector3 &p)

Parameter	Description
p	Point to include in the box.

Expands the box to include the given point. If the point lies outside the current box bounds, the box is enlarged to include it.

IsEmpty() auto

auto vglx::Box3::IsEmpty() const

Checks whether the box is empty (invalid). A box is considered empty if any component of min exceeds the corresponding component of max, which means it contains no volume.

Reset() auto

auto vglx::Box3::Reset()

Resets the box to an empty state. This sets min and max to extreme values such that any point expanded into it will become the new bounds.

Translate() auto

auto vglx::Box3::Translate(const Vector3 &translation)

Parameter	Description
translation	Vector to add to both min and max.

Translates the box by a constant vector.

Union() auto

auto vglx::Box3::Union(const Box3 &other)

Parameter	Description
other	The box to merge into this one.

Expands this box to fully contain another box.