GLMATRIXMODE(3G) |
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GLMATRIXMODE(3G) |
NAME
glMatrixMode - specify which matrix is the current matrix
C SPECIFICATION
void
glMatrixMode( GLenum
mode )
PARAMETERS
-
mode
-
Specifies which matrix stack is the target for subsequent matrix operations. Three values are accepted: GL_MODELVIEW, GL_PROJECTION, and GL_TEXTURE. The initial value is GL_MODELVIEW.
Additionally, if the GL_ARB_imaging extension is supported, GL_COLOR is also accepted.
DESCRIPTION
glMatrixMode sets the current matrix mode.
mode can assume one of four values:
-
GL_MODELVIEW
-
Applies subsequent matrix operations to the modelview matrix stack.
-
GL_PROJECTION
-
Applies subsequent matrix operations to the projection matrix stack.
-
GL_TEXTURE
-
Applies subsequent matrix operations to the texture matrix stack.
-
GL_COLOR
-
Applies subsequent matrix operations to the color matrix stack.
To find out which matrix stack is currently the target of all matrix operations, call glGet with argument GL_MATRIX_MODE. The initial value is GL_MODELVIEW.
ERRORS
GL_INVALID_ENUM is generated if
mode is not an accepted value.
GL_INVALID_OPERATION is generated if glMatrixMode is executed between the execution of glBegin and the corresponding execution of glEnd.
ASSOCIATED GETS
glGet with argument GL_MATRIX_MODE
SEE ALSO
glLoadMatrix(3G), glPushMatrix(3G)