fsleyes.gl.gl14.glmesh_funcs
This module provides functions which are used by the GLMesh
class to render Mesh
overlays in an OpenGL 1.4 compatible
manner.
An ARBPShader
is used to manage the glmesh
vertex/fragment
programs.
- fsleyes.gl.gl14.glmesh_funcs.compileShaders(self)[source]
Loads the
glmesh
vertex and fragment shader program source, and createsARBPShader
instance(s).
- fsleyes.gl.gl14.glmesh_funcs.updateShaderState(self, **kwargs)[source]
Updates the state of the vertex/fragment shaders according to the current
MeshOpts
configuration. This involves setting the parameter values used by the shaders.
- fsleyes.gl.gl14.glmesh_funcs.preDraw(self)[source]
Must be called before
draw()
. Loads the appropriate shader program.
- fsleyes.gl.gl14.glmesh_funcs.draw(self, glType, vertices, indices=None, normals=None, vdata=None, mdata=None)[source]
Called for 3D meshes, and
MeshOpts.vertexData
is notNone
. Loads and runs the shader program.- Parameters
glType – The OpenGL primitive type.
vertices –
(n, 3)
array containing the line vertices to draw.indices – Indices into the
vertices
array. If not provided,glDrawArrays
is used.normals – Vertex normals.
vdata –
(n, )
array containing data for each vertex.mdata –
(n, )
array containing alpha modulation data for each vertex.