绿幕抠像跟踪合成特效流程 VFX Workflow – Lens Distortion Shot – PF Track  Maya & Nuke利用PF Track  Maya & Nuke来讲解绿幕抠像合成跟踪整个流程，包括跟踪点，摄像机反求，抠像，灯光等There is always difficult to design a VFX workflow to solve lens distorted footage without any plugins.

So here I am explaining the key features to solve this problem within default tools. In tutorial I avoid basic steps like how to create/track track points, camera solver, keying, lighting, etc