Generating Video from a Viewport Rendering with a reference frame

Hey people, I have seen some example on Instagram where people use Seedance to "Render" the final image of their viewport rendering in Blender or other 3D Software. Now my question as someone that wants to learn about Image Generation, focused on local Models. Is that also possible with current local models like LTX? What are the Tools I need to have, because I have read some comments that Wan2GP would be better at this stuff than ComfyUI. What gives the best results. I have a 4090 in the Office, but also 4070s.