glMatrixMode — specify which matrix is the current matrix
Specifies which matrix stack is the target for subsequent matrix operations. Three values are accepted:
GL_TEXTURE. The initial value is
GL_MODELVIEW. Additionally, if the
ARB_imaging extension is supported,
GL_COLOR is also accepted.
glMatrixMode sets the current matrix mode.
mode can assume one of four values:
Applies subsequent matrix operations to the modelview matrix stack.
Applies subsequent matrix operations to the projection matrix stack.
Applies subsequent matrix operations to the texture matrix stack.
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_INVALID_ENUM is generated if
mode is not an accepted value.
glGet with argument
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