fsleyes.gl.gl21.gllabel_funcs
¶
This module provides functions which are used by the GLLabel
class to render Image
overlays in an OpenGL 2.1 compatible manner.
Rendering of a GLLabel
is very similar to that of a GLVolume
, with the
exception that a different fragment shader (gllabel
) is used. The
preDraw
, draw
, drawAll
and postDraw
functions defined in the
gl21.glvolume_funcs
are re-used by this module.
-
fsleyes.gl.gl21.gllabel_funcs.
init
(self)¶ Calls the
compileShaders()
andupdateShaderState()
functions.
-
fsleyes.gl.gl21.gllabel_funcs.
destroy
(self)¶ Destroys the shader programs.
-
fsleyes.gl.gl21.gllabel_funcs.
compileShaders
(self)¶ Loads the vertex/fragment shader source code, and creates a
GLSLShader
program.
-
fsleyes.gl.gl21.gllabel_funcs.
updateShaderState
(self)¶ Updates all shader program variables.
-
fsleyes.gl.gl21.gllabel_funcs.
draw2D
(self, *args, **kwargs)¶ Draws the label overlay in 2D. See
GLObject.draw2D()
.
-
fsleyes.gl.gl21.gllabel_funcs.
drawAll
(self, *args, **kwargs)¶ Draws the label overlay in 2D. See
GLObject.draw2D()
.
-
fsleyes.gl.gl21.gllabel_funcs.
draw3D
(self, *args, **kwargs)¶