Method ReadyLinesCBOProgram

Rendering/ContextOpenGL2/vtkOpenGLContextDevice2D.cxx:570–599

}

void vtkOpenGLContextDevice2D::ReadyLinesCBOProgram()
{
  vtkOpenGLGL2PSHelper* gl2ps = PrepProgramForGL2PS(*this->LinesCBO);

  if (!this->LinesCBO->Program)
  {
    vtkTransformFeedback* tf = nullptr;
    if (gl2ps && gl2ps->GetActiveState() == vtkOpenGLGL2PSHelper::Capture)
    {
      tf = vtkTransformFeedback::New();
      tf->AddVarying(vtkTransformFeedback::Vertex_ClipCoordinate_F, "gl_Position");
      tf->AddVarying(vtkTransformFeedback::Color_RGBA_F, "vertexColor");
    }
    std::string vs = "//VTK::System::Dec\n#define haveColors\n#define haveLines\n";
    vs += myVertShader;
    std::string fs = "//VTK::System::Dec\n#define haveColors\n#define haveLines\n";
    fs += myFragShader;
    this->LinesCBO->Program =
      this->RenderWindow->GetShaderCache()->ReadyShaderProgram(vs.c_str(), fs.c_str(), "", tf);
    if (tf)
    {
      tf->Delete();
      tf = nullptr;
    }
  }
  else
  {
    this->RenderWindow->GetShaderCache()->ReadyShaderProgram(this->LinesCBO->Program);
  }
}

void vtkOpenGLContextDevice2D::ReadyVTBOProgram()
{