This class contains static methods to calculate projection matrices. More...

Static Public Member Functions
static glm::mat4	identity ()
	Returns an identity matrix. More...

static glm::mat4	ortho (float left, float right, float bottom, float top, float zNear, float zFar)
	Calculates a transformation that produces a parallel projection. More...

static glm::mat4	frustum (float left, float right, float bottom, float top, float zNear, float zFar)
	Calculates a perspective matrix that produces a perspective projection. More...

static glm::mat4	perspective (float fovy, float aspect, float zNear, float zFar)
	Calculates a viewing frustum into the world coordinate system. More...

Detailed Description

This class contains static methods to calculate projection matrices.

Definition at line 271 of file transform.hpp.

Member Function Documentation

glm::mat4 sgl::Projection::frustum	(	float	left,
		float	right,
		float	bottom,
		float	top,
		float	zNear,
		float	zFar
	)

static

Calculates a perspective matrix that produces a perspective projection.

Parameters

left	Specify the coordinates for the left vertical clipping planes.
right	Specify the coordinates for the right vertical clipping planes.
bottom	Specify the coordinates for the bottom horizontal clipping planes.
top	Specify the coordinates for the top horizontal clipping planes.
zNear	Specify the distances to the near depth clipping planes. Must be positive.
zFar	Specify the distances to the far depth clipping planes. Must be positive.

Definition at line 105 of file transform.cpp.

glm::mat4 sgl::Projection::identity ( )

static

Returns an identity matrix.

Definition at line 97 of file transform.cpp.

static

Calculates a transformation that produces a parallel projection.

Parameters

left	Specify the coordinates for the left vertical clipping planes.
right	Specify the coordinates for the right vertical clipping planes.
bottom	Specify the coordinates for the bottom horizontal clipping planes.
top	Specify the coordinates for the top horizontal clipping planes.
zNear	Specify the distances to the nearer depth clipping planes. This value is negative if the plane is to be behind the viewer.
zFar	Specify the distances to the farther depth clipping planes. This value is negative if the plane is to be behind the viewer.

Definition at line 101 of file transform.cpp.

glm::mat4 sgl::Projection::perspective	(	float	fovy,
		float	aspect,
		float	zNear,
		float	zFar
	)

static

Calculates a viewing frustum into the world coordinate system.

Parameters

fovy	Specifies the field of view angle, in degrees, in the y direction.
aspect	Specifies the aspect ratio that determines the field of view in the x direction. The aspect ratio is the ratio of x (width) to y (height).
zNear	Specifies the distance from the viewer to the near clipping plane (always positive).
zFar	Specifies the distance from the viewer to the far clipping plane (always positive).

Definition at line 109 of file transform.cpp.

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