Method Render

example/opengl_sphere.cpp:125–152

    }

    void Render(vtkRenderer *renderer, vtkActor *actor)
    {
        if(!m_initialized){
            Initialize(renderer, actor);
            m_initialized = true;
        }

        if(!m_tesselated){
            m_vertex_count = m_phi_slices * m_theta_slices;

            // tesselate sphere
            m_vertex_buffer = tesselate_sphere(
                m_radius, m_phi_slices, m_theta_slices, m_command_queue
            );

            // ensure tesselation is finished (seems to be required on AMD)
            m_command_queue.finish();

            // set tesselated flag to true
            m_tesselated = true;
        }

        // draw sphere
        glEnableClientState(GL_VERTEX_ARRAY);
        vtkgl::BindBufferARB(vtkgl::ARRAY_BUFFER, m_vertex_buffer.get_opengl_object());
        glVertexPointer(4, GL_FLOAT, sizeof(float)*4, 0);
        glDrawArrays(GL_POINTS, 0, m_vertex_count);
    }

    void Initialize(vtkRenderer *renderer, vtkActor *actor)
    {