MAT_FLAG_XXX-flags

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Detailed Description

Bitmasks to indicate different kinds of 4x4 matrices in GLmatrix::flags It would be nice to make all these flags private to m_matrix.c.

Defines
#define	MAT_FLAG_IDENTITY   0
	is an identity matrix flag.
#define	MAT_FLAG_GENERAL   0x1
	is a general matrix flag
#define	MAT_FLAG_ROTATION   0x2
	is a rotation matrix flag
#define	MAT_FLAG_TRANSLATION   0x4
	is a translation matrix flag
#define	MAT_FLAG_UNIFORM_SCALE   0x8
	is an uniform scaling matrix flag
#define	MAT_FLAG_GENERAL_SCALE   0x10
	is a general scaling matrix flag
#define	MAT_FLAG_GENERAL_3D   0x20
	general 3D matrix flag
#define	MAT_FLAG_PERSPECTIVE   0x40
	is a perspective proj matrix flag
#define	MAT_FLAG_SINGULAR   0x80
	is a singular matrix flag
#define	MAT_DIRTY_TYPE   0x100
	matrix type is dirty
#define	MAT_DIRTY_FLAGS   0x200
	matrix flags are dirty
#define	MAT_DIRTY_INVERSE   0x400
	matrix inverse is dirty
#define	MAT_FLAGS_ANGLE_PRESERVING
	angle preserving matrix flags mask
#define	MAT_FLAGS_GEOMETRY
	geometry related matrix flags mask
#define	MAT_FLAGS_LENGTH_PRESERVING
	length preserving matrix flags mask
#define	MAT_FLAGS_3D
	3D (non-perspective) matrix flags mask
#define	MAT_DIRTY
	dirty matrix flags mask

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Define Documentation

#define MAT_DIRTY

Value:

(MAT_DIRTY_TYPE | \
                            MAT_DIRTY_FLAGS | \
                            MAT_DIRTY_INVERSE)

dirty matrix flags mask

#define MAT_DIRTY_FLAGS   0x200

matrix flags are dirty

#define MAT_DIRTY_INVERSE   0x400

matrix inverse is dirty

#define MAT_DIRTY_TYPE   0x100

matrix type is dirty

#define MAT_FLAG_GENERAL   0x1

is a general matrix flag

#define MAT_FLAG_GENERAL_3D   0x20

general 3D matrix flag

#define MAT_FLAG_GENERAL_SCALE   0x10

is a general scaling matrix flag

#define MAT_FLAG_IDENTITY   0

is an identity matrix flag.

(Not actually used - the identity matrix is identified by the absense of all other flags.)

#define MAT_FLAG_PERSPECTIVE   0x40

is a perspective proj matrix flag

#define MAT_FLAG_ROTATION   0x2

is a rotation matrix flag

#define MAT_FLAG_SINGULAR   0x80

is a singular matrix flag

#define MAT_FLAG_TRANSLATION   0x4

is a translation matrix flag

#define MAT_FLAG_UNIFORM_SCALE   0x8

is an uniform scaling matrix flag

#define MAT_FLAGS_3D

Value:

(MAT_FLAG_ROTATION | \
                      MAT_FLAG_TRANSLATION | \
                      MAT_FLAG_UNIFORM_SCALE | \
                      MAT_FLAG_GENERAL_SCALE | \
                      MAT_FLAG_GENERAL_3D)

3D (non-perspective) matrix flags mask

#define MAT_FLAGS_ANGLE_PRESERVING

Value:

(MAT_FLAG_ROTATION | \
                                    MAT_FLAG_TRANSLATION | \
                                    MAT_FLAG_UNIFORM_SCALE)

angle preserving matrix flags mask

#define MAT_FLAGS_GEOMETRY

Value:

(MAT_FLAG_GENERAL | \
                            MAT_FLAG_ROTATION | \
                            MAT_FLAG_TRANSLATION | \
                            MAT_FLAG_UNIFORM_SCALE | \
                            MAT_FLAG_GENERAL_SCALE | \
                            MAT_FLAG_GENERAL_3D | \
                            MAT_FLAG_PERSPECTIVE | \
                            MAT_FLAG_SINGULAR)

geometry related matrix flags mask

#define MAT_FLAGS_LENGTH_PRESERVING

Value:

(MAT_FLAG_ROTATION | \
                                     MAT_FLAG_TRANSLATION)

length preserving matrix flags mask

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