FlukyEngine
Functions
GLM_EXT_matrix_projection

Functions that generate common projection transformation matrices. More...

Collaboration diagram for GLM_EXT_matrix_projection:

Functions

template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec< 3, T, Q > glm::projectZO (vec< 3, T, Q > const &obj, mat< 4, 4, T, Q > const &model, mat< 4, 4, T, Q > const &proj, vec< 4, U, Q > const &viewport)
 Map the specified object coordinates (obj.x, obj.y, obj.z) into window coordinates. More...
 
template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec< 3, T, Q > glm::projectNO (vec< 3, T, Q > const &obj, mat< 4, 4, T, Q > const &model, mat< 4, 4, T, Q > const &proj, vec< 4, U, Q > const &viewport)
 Map the specified object coordinates (obj.x, obj.y, obj.z) into window coordinates. More...
 
template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec< 3, T, Q > glm::project (vec< 3, T, Q > const &obj, mat< 4, 4, T, Q > const &model, mat< 4, 4, T, Q > const &proj, vec< 4, U, Q > const &viewport)
 Map the specified object coordinates (obj.x, obj.y, obj.z) into window coordinates using default near and far clip planes definition. More...
 
template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec< 3, T, Q > glm::unProjectZO (vec< 3, T, Q > const &win, mat< 4, 4, T, Q > const &model, mat< 4, 4, T, Q > const &proj, vec< 4, U, Q > const &viewport)
 Map the specified window coordinates (win.x, win.y, win.z) into object coordinates. More...
 
template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec< 3, T, Q > glm::unProjectNO (vec< 3, T, Q > const &win, mat< 4, 4, T, Q > const &model, mat< 4, 4, T, Q > const &proj, vec< 4, U, Q > const &viewport)
 Map the specified window coordinates (win.x, win.y, win.z) into object coordinates. More...
 
template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec< 3, T, Q > glm::unProject (vec< 3, T, Q > const &win, mat< 4, 4, T, Q > const &model, mat< 4, 4, T, Q > const &proj, vec< 4, U, Q > const &viewport)
 Map the specified window coordinates (win.x, win.y, win.z) into object coordinates using default near and far clip planes definition. More...
 
template<typename T , qualifier Q, typename U >
GLM_FUNC_DECL mat< 4, 4, T, Q > glm::pickMatrix (vec< 2, T, Q > const &center, vec< 2, T, Q > const &delta, vec< 4, U, Q > const &viewport)
 Define a picking region. More...
 

Detailed Description

Functions that generate common projection transformation matrices.

The matrices generated by this extension use standard OpenGL fixed-function conventions. For example, the lookAt function generates a transform from world space into the specific eye space that the projective matrix functions (perspective, ortho, etc) are designed to expect. The OpenGL compatibility specifications defines the particular layout of this eye space.

Include <glm/ext/matrix_projection.hpp> to use the features of this extension.

See also
GLM_EXT_matrix_transform
GLM_EXT_matrix_clip_space

Function Documentation

◆ pickMatrix()

template<typename T , qualifier Q, typename U >
GLM_FUNC_DECL mat<4, 4, T, Q> glm::pickMatrix ( vec< 2, T, Q > const &  center,
vec< 2, T, Q > const &  delta,
vec< 4, U, Q > const &  viewport 
)

Define a picking region.

Parameters
centerSpecify the center of a picking region in window coordinates.
deltaSpecify the width and height, respectively, of the picking region in window coordinates.
viewportRendering viewport
Template Parameters
TNative type used for the computation. Currently supported: half (not recommended), float or double.
UCurrently supported: Floating-point types and integer types.
See also
gluPickMatrix man page

◆ project()

template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec<3, T, Q> glm::project ( vec< 3, T, Q > const &  obj,
mat< 4, 4, T, Q > const &  model,
mat< 4, 4, T, Q > const &  proj,
vec< 4, U, Q > const &  viewport 
)

Map the specified object coordinates (obj.x, obj.y, obj.z) into window coordinates using default near and far clip planes definition.

To change default near and far clip planes definition use GLM_FORCE_DEPTH_ZERO_TO_ONE.

Parameters
objSpecify the object coordinates.
modelSpecifies the current modelview matrix
projSpecifies the current projection matrix
viewportSpecifies the current viewport
Returns
Return the computed window coordinates.
Template Parameters
TNative type used for the computation. Currently supported: half (not recommended), float or double.
UCurrently supported: Floating-point types and integer types.
See also
gluProject man page

◆ projectNO()

template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec<3, T, Q> glm::projectNO ( vec< 3, T, Q > const &  obj,
mat< 4, 4, T, Q > const &  model,
mat< 4, 4, T, Q > const &  proj,
vec< 4, U, Q > const &  viewport 
)

Map the specified object coordinates (obj.x, obj.y, obj.z) into window coordinates.

The near and far clip planes correspond to z normalized device coordinates of -1 and +1 respectively. (OpenGL clip volume definition)

Parameters
objSpecify the object coordinates.
modelSpecifies the current modelview matrix
projSpecifies the current projection matrix
viewportSpecifies the current viewport
Returns
Return the computed window coordinates.
Template Parameters
TNative type used for the computation. Currently supported: half (not recommended), float or double.
UCurrently supported: Floating-point types and integer types.
See also
gluProject man page

◆ projectZO()

template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec<3, T, Q> glm::projectZO ( vec< 3, T, Q > const &  obj,
mat< 4, 4, T, Q > const &  model,
mat< 4, 4, T, Q > const &  proj,
vec< 4, U, Q > const &  viewport 
)

Map the specified object coordinates (obj.x, obj.y, obj.z) into window coordinates.

The near and far clip planes correspond to z normalized device coordinates of 0 and +1 respectively. (Direct3D clip volume definition)

Parameters
objSpecify the object coordinates.
modelSpecifies the current modelview matrix
projSpecifies the current projection matrix
viewportSpecifies the current viewport
Returns
Return the computed window coordinates.
Template Parameters
TNative type used for the computation. Currently supported: half (not recommended), float or double.
UCurrently supported: Floating-point types and integer types.
See also
gluProject man page

◆ unProject()

template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec<3, T, Q> glm::unProject ( vec< 3, T, Q > const &  win,
mat< 4, 4, T, Q > const &  model,
mat< 4, 4, T, Q > const &  proj,
vec< 4, U, Q > const &  viewport 
)

Map the specified window coordinates (win.x, win.y, win.z) into object coordinates using default near and far clip planes definition.

To change default near and far clip planes definition use GLM_FORCE_DEPTH_ZERO_TO_ONE.

Parameters
winSpecify the window coordinates to be mapped.
modelSpecifies the modelview matrix
projSpecifies the projection matrix
viewportSpecifies the viewport
Returns
Returns the computed object coordinates.
Template Parameters
TNative type used for the computation. Currently supported: half (not recommended), float or double.
UCurrently supported: Floating-point types and integer types.
See also
gluUnProject man page

◆ unProjectNO()

template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec<3, T, Q> glm::unProjectNO ( vec< 3, T, Q > const &  win,
mat< 4, 4, T, Q > const &  model,
mat< 4, 4, T, Q > const &  proj,
vec< 4, U, Q > const &  viewport 
)

Map the specified window coordinates (win.x, win.y, win.z) into object coordinates.

The near and far clip planes correspond to z normalized device coordinates of -1 and +1 respectively. (OpenGL clip volume definition)

Parameters
winSpecify the window coordinates to be mapped.
modelSpecifies the modelview matrix
projSpecifies the projection matrix
viewportSpecifies the viewport
Returns
Returns the computed object coordinates.
Template Parameters
TNative type used for the computation. Currently supported: half (not recommended), float or double.
UCurrently supported: Floating-point types and integer types.
See also
gluUnProject man page

◆ unProjectZO()

template<typename T , typename U , qualifier Q>
GLM_FUNC_DECL vec<3, T, Q> glm::unProjectZO ( vec< 3, T, Q > const &  win,
mat< 4, 4, T, Q > const &  model,
mat< 4, 4, T, Q > const &  proj,
vec< 4, U, Q > const &  viewport 
)

Map the specified window coordinates (win.x, win.y, win.z) into object coordinates.

The near and far clip planes correspond to z normalized device coordinates of 0 and +1 respectively. (Direct3D clip volume definition)

Parameters
winSpecify the window coordinates to be mapped.
modelSpecifies the modelview matrix
projSpecifies the projection matrix
viewportSpecifies the viewport
Returns
Returns the computed object coordinates.
Template Parameters
TNative type used for the computation. Currently supported: half (not recommended), float or double.
UCurrently supported: Floating-point types and integer types.
See also
gluUnProject man page