message: OpenGL driver: allow point sprites on desktop.
  I noticed that point sprites were working on mobile and web but not
  desktop.  This is why.  :)
diff: @@ -227,6 +227,12 @@ OpenGLDriver::OpenGLDriver(OpenGLPlatform* platform) noexcept
  disable(GL_DITHER);
  enable(GL_DEPTH_TEST);
  + // With desktop GL, the application must enable point size to allow vertex shaders to set it,
  + // but with OpenGL ES, this is always on and there is no enable flag.
  +#if GL41_HEADERS
  + enable(GL_PROGRAM_POINT_SIZE);
  +#endif
  +
  // TODO: Don't enable scissor when it is not necessary. This optimization could be done here in
  // the driver by simply deferring the enable until the scissor rect is smaller than the window.
  enable(GL_SCISSOR_TEST);
  