<div dir="ltr"><span style="font-family:arial,sans-serif;font-size:14px">Hi,</span><div style="font-family:arial,sans-serif;font-size:14px"><br></div><div style="font-family:arial,sans-serif;font-size:14px">I have a question for redrawing a render window.</div><div style="font-family:arial,sans-serif;font-size:14px">I only know the method to redraw is</div><div style="font-family:arial,sans-serif;font-size:14px">vtkRenderWindow::render();</div><div style="font-family:arial,sans-serif;font-size:14px">but it redraw all renderers at once.</div><div style="font-family:arial,sans-serif;font-size:14px">I want to redraw only one renderer or only one actor.</div><div style="font-family:arial,sans-serif;font-size:14px">Is it possible?</div><div style="font-family:arial,sans-serif;font-size:14px">I divide viewport in the render window for each renderer.</div><div style="font-family:arial,sans-serif;font-size:14px">One for volume rendering, and the other is something working space.</div><div style="font-family:arial,sans-serif;font-size:14px">I want to redraw only working space, because volume rendering is heavy.</div><div style="font-family:arial,sans-serif;font-size:14px"><br></div><div style="font-family:arial,sans-serif;font-size:14px">I looking forward your helps.</div><div style="font-family:arial,sans-serif;font-size:14px"><br></div><div style="font-family:arial,sans-serif;font-size:14px">Best regards,</div><div style="font-family:arial,sans-serif;font-size:14px">Jinhyeok Choi</div></div>