Drawing many points in Python Qt with OpenGL -


what easiest , performat way of drawing many points differrent colors each?

right following:

paintgl(self):      ...      glbegin(gl_points)      x, y, z, r, g, b in points:         glcolor(r, g, b)         glvertex3f(x, y, z)      glend()

this gets slow ~50k points when drawing them every frame in paintgl(). want able rotate , zoom cloud.

i saw gldrawelements, gldrawarrays , heard shaders , stuff. please point me in right direction.

update2:

i found way, here is:

def init(self):      ...      points = np.array(points, dtype=np.float64)     colors = np.array(colors, dtype=np.float64)      self.count = len(points)     self.vbo_points = vbo(points)     self.vbo_colors = vbo(colors)  def paintgl(self):      ...      self.vbo_points.bind()     glenableclientstate(gl_vertex_array)     glvertexpointer(3, gl_double, 0, self.vbo_points)      self.vbo_colors.bind()     glenableclientstate(gl_color_array)     glcolorpointer(3, gl_double, 0, self.vbo_colors)      gldrawarrays(gl_points, 0, self.count)


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