fsleyes.gl.gl14.glvolume_funcs
¶
This module provides functions which are used by the GLVolume
class to render Image
overlays in an OpenGL 1.4 compatible manner.
An ARBPShader
is used to manage the glvolume
vertex/fragment
programs.
- fsleyes.gl.gl14.glvolume_funcs.init(self)[source]¶
Calls
compileShaders()
andupdateShaderState()
.
- fsleyes.gl.gl14.glvolume_funcs.destroy(self)[source]¶
Deletes handles to the vertex/fragment programs.
- fsleyes.gl.gl14.glvolume_funcs.compileShaders(self)[source]¶
Creates a
ARBPShader
instance.
- fsleyes.gl.gl14.glvolume_funcs.updateShaderState(self)[source]¶
Sets all variables required by the vertex and fragment programs.
- fsleyes.gl.gl14.glvolume_funcs.preDraw(self, xform=None, bbox=None)[source]¶
Prepares to draw a slice from the given
GLVolume
instance.
- fsleyes.gl.gl14.glvolume_funcs.draw2D(self, zpos, axes, xform=None, bbox=None)[source]¶
Draws a 2D slice of the image at the given Z location.
- fsleyes.gl.gl14.glvolume_funcs.draw3D(self, xform=None, bbox=None)[source]¶
Draws the image in 3D on the canvas.
- Parameters
self – The
GLVolume
object which is managing the image to be drawn.xform – A 4*4 transformation matrix to be applied to the vertex data.
bbox – An optional bounding box.