fsleyes.gl.gl14.gllabel_funcs

This module provides functions which are used by the GLLabel class to render Image overlays in an OpenGL 1.4 compatible manner.

Rendering of a GLLabel is very similar to that of a GLVolume, with the exception that a different fragment program (gllabel) is used. Therefore, the preDraw, draw, drawAll and postDraw functions defined in the gl14.glvolume_funcs are re-used by this module.

fsleyes.gl.gl14.gllabel_funcs.init(self)

Calls the compileShaders() and updateShaderState() functions.

fsleyes.gl.gl14.gllabel_funcs.destroy(self)

Deletes handles to the vertex/fragment shader programs.

fsleyes.gl.gl14.gllabel_funcs.compileShaders(self)

Loads vertex and fragment shader program source, and creates an ARBPShader instance.

fsleyes.gl.gl14.gllabel_funcs.updateShaderState(self)

Updates all shader program variables.

fsleyes.gl.gl14.gllabel_funcs.draw2D(self, *args, **kwargs)

Draws the label overlay in 2D. See GLObject.draw2D().

fsleyes.gl.gl14.gllabel_funcs.drawAll(self, *args, **kwargs)

Draws the label overlay in 2D. See GLObject.draw2D().

fsleyes.gl.gl14.gllabel_funcs.draw3D(self, *args, **kwargs)