Luminous::Transformer Class Reference

Geometrical 3D transformation stack. More...

#include <Luminous/Transformer.hpp>

Inheritance diagram for Luminous::Transformer:

Public Member Functions
void	leftMul (const Nimble::Matrix4 &m)
	Multiply the top matrix from the left with the given matrix The end result is equivalent to: More...
void	popTransform ()
	Pops the top matrix from the stack.
Nimble::Vector2	project (const Nimble::Vector2 &) const
	Apply the current transformation matrix on a 2D vector.
void	pushTransform ()
	Push a new matrix to the stack, just copying the current top.
void	pushTransform (const Nimble::Matrix4 &m)
	Push the given matrix to the stack pushTransform(m) has the same effect as: More...
void	pushTransform (const Nimble::Matrix3 &m)
void	pushTransformLeftMul (const Nimble::Matrix4 &m)
	Multiply the top matrix from the left with the given matrix and push the result into the stack.
void	pushTransformLeftMul (const Nimble::Matrix3 &m)
void	pushTransformRightMul (const Nimble::Matrix4 &m)
	Multiply the top matrix from the right with the given matrix and push the result into the stack.
void	pushTransformRightMul (const Nimble::Matrix3 &m)
void	resetTransform ()
	Clears the stack so it only contains an identity matrix.
void	rightMul (const Nimble::Matrix4 &m)
	Multiply the top matrix from the right with the given matrix The end result is equivalent to: More...
void	setTransform (const Nimble::Matrix4 &m)
	Replaces the top matrix with the given matrix. More...
size_t	stackSize () const
	Get the size of the transform stack. More...
const Nimble::Matrix4 &	transform () const
	Get the top matrix of the stack.
Nimble::Matrix3	transform3 () const
	Get the top matrix of the stack as 3x3-matrix.
	Transformer ()
	Creates an empty transformation stack.
Nimble::Vector2	unproject (const Nimble::Vector2 &) const
	Apply inverse of the current transformation matrix on a 2D vector.
virtual	~Transformer ()
	Deletes the transformation stack.

Protected Member Functions
virtual void	beforeTransformChange ()
	This function gets called just before the transformation matrix is changed. More...

Protected Attributes
std::stack< Nimble::Matrix4, std::vector< Nimble::Matrix4 > >	m_stack
	The transformation stack.

Detailed Description

Geometrical 3D transformation stack.

This class encapsulates 3D transformation stack. The transformations are stored as 4x4 matrices.

Member Function Documentation

virtual void Luminous::Transformer::beforeTransformChange ( )

protectedvirtual

This function gets called just before the transformation matrix is changed.

Reimplemented in Luminous::RenderContext.

void Luminous::Transformer::leftMul

(

const Nimble::Matrix4 &

m

)

Multiply the top matrix from the left with the given matrix The end result is equivalent to:

renderContext.setTransform(m * renderContext.transform()); 

Parameters

m	matrix to multiply with

void Luminous::Transformer::pushTransform

(

const Nimble::Matrix4 &

m

)

Push the given matrix to the stack pushTransform(m) has the same effect as:

renderContext.pushTransform();
renderContext.setTransform(m);

Parameters

m	matrix to push

void Luminous::Transformer::pushTransform

(

const Nimble::Matrix3 &

m

)

Deprecated:

Transformation stack uses 4x4-matrices

void Luminous::Transformer::pushTransformLeftMul

(

const Nimble::Matrix3 &

m

)

Deprecated:

Transformation stack uses 4x4-matrices

void Luminous::Transformer::pushTransformRightMul

(

const Nimble::Matrix3 &

m

)

Deprecated:

Transformation stack uses 4x4-matrices

void Luminous::Transformer::rightMul

(

const Nimble::Matrix4 &

m

)

Multiply the top matrix from the right with the given matrix The end result is equivalent to:

renderContext.setTransform(renderContext.transform() * m); 

Parameters

m	matrix to multiply with

void Luminous::Transformer::setTransform

(

const Nimble::Matrix4 &

m

)

Replaces the top matrix with the given matrix.

Parameters

m	matrix to set

size_t Luminous::Transformer::stackSize ( ) const

inline

Get the size of the transform stack.

Returns

size of the stack