class_docstr: **Bases:** :class:`GLGraphicsItem <pyqtgraph.opengl.GLGraphicsItem.GLGraphicsItem>`
  
  Displays a 3D triangle mesh. 
docstr: Set the shader used when rendering faces in the mesh. (see the GL shaders example)
docstr_tok: ["Set","the","shader","used","when","rendering","faces","in","the","mesh",".","(","see","the","GL","shaders","example",")"]
code: def setShader(self, shader):
      """Set the shader used when rendering faces in the mesh. (see the GL shaders example)"""
      self.opts["shader"] = shader
      self.update()
  
file_path: pyqtgraph/pyqtgraph/opengl/items/GLMeshItem.py
imports: from OpenGL.GL import *
  import numpy
  from ...Qt import QtGui
  from ..None import shaders
  from ..GLGraphicsItem import GLGraphicsItem
  from ..MeshData import MeshData
label_desc: Use image node_id 2 for calling the GLMeshItem obj's underlying member method code with example usage: obj.setShader(shader) without return types