Documentation de Gambas - /comp/gb.opengl.glsl/gl/matrixmode

/comp/gb.opengl.glsl/gl/matrixmode

# Gl.MatrixMode (gb.opengl)

Static Sub MatrixMode ( Mode As Integer )

Specify which matrix is the current matrix.

### 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 ARB_imaging extension is supported, Gl.COLOR is also accepted.

### Description

Gl.MatrixMode 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 Gl.Get 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 Gl.MatrixMode is executed between the execution of Gl.Begin and the corresponding execution of Gl.End.

### Associated Gets

Gl.Get with argument Gl.MATRIX_MODE

### See also

Gl.LoadMatrix, Gl.LoadTransposeMatrix, Gl.MultMatrix, Gl.MultTransposeMatrix,

- Gl.PopMatrix,

- Gl.PushMatrix

See original documentation on OpenGL website