DD::Image::Box3 Class Reference

3D Box More...

Inherited by DD::Image::rPrimitive, and DD::Image::Scene.

Public Member Functions
	Box3 (float x, float y, float z)
	Box3 (const Vector3 p)
	Box3 (const Vector3 p1, const Vector3 p2)
const Vector3 &	min () const
const Vector3 &	max () const
float	x () const
float	y () const
float	n () const
	near, min z
float	r () const
	right, max x
float	t () const
	top, max y
float	f () const
	far, max z
float	w () const
	width
float	h () const
	height
float	d () const
	depth
Vector3	center () const
float	radius () const
void	set (float x, float y, float z, float r, float t, float f)
void	set (Vector3 p1, Vector3 p2)
void	set (const Box3 &v)
void	set_min (float x, float y, float z)
void	set_max (float x, float y, float z)
bool	empty () const
void	clear ()
bool	inside (const Vector3 &p) const
void	expand (const Box3 &v)
void	expand (const Vector3 &p)
void	intersect (const Box3 &v)
void	transform (const Matrix4 &m)
void	project (const Matrix4 &m, Box &bbox) const
void	append (Hash &h) const
void	print_info (const char *title=nullptr) const

Detailed Description

3D Box

Member Function Documentation

bool DD::Image::Box3::empty ( ) const

inline

Return true if the box is empty.

Referenced by DD::Image::GeoOp::add_draw_geometry(), DD::Image::GeoOp::build_scene(), expand(), DD::Image::ViewerContext::expand_bbox(), and DD::Image::Scene::validate().

bool DD::Image::Box3::inside ( const Vector3 &  p ) const

inline

Return true if the Vector3 point is inside this box.

Referenced by DD::Image::rTriangle::intersect(), DD::Image::rTriangle::intersect_dist_squared(), and DD::Image::Scene::validate().

void Box3::expand

(

const Box3 &

v

)

Union the box with box v. If this is empty it is set to the other box, if the other one is empty this is unchanged.

References empty(), MAX(), and MIN().

Referenced by DD::Image::Render::_request(), DD::Image::Render::_validate(), DD::Image::Primitive::get_bbox(), transform(), DD::Image::Scene::validate(), and DD::Image::Iop::vertex_shader().

void Box3::expand

(

const Vector3 &

p

)

Expand the bbox to contain p. If it is empty it is set to a zero-size box at p.

References empty(), MAX(), and MIN().

void Box3::transform

(

const Matrix4 &

m

)

Transform each corner of the box by the matrix, merging them into a new axis-aligned box.

References expand(), t(), and DD::Image::Matrix4::vtransform().

Referenced by DD::Image::GeoOp::add_draw_geometry(), DD::Image::GeoOp::build_scene(), DD::Image::ViewerContext::expand_bbox(), and DD::Image::Scene::validate().

void Box3::project	(	const Matrix4 &	m,
		Box &	bbox
	)		const

Transform each corner of the box by a projection matrix, merging them into 2D bbox. This is typically used to project into screen space. Pass false to 'wnormalize' if the perspective division is not wanted.

References DD::Image::Box::set().

Referenced by DD::Image::Scene::validate().