Filmmaker seeks local workflow for video background replacement with matching actor lighting
ItsLukeHill · reddit · 2026-09-22
An indie filmmaker on Reddit asks how to replace the background of real actors' footage and relight them to match the new scene using AI.
What he tried:
- A reference workflow with MiniMax H3, feeding both the performance video and a photo of the new environment. Background replacement works, but the actor's lighting stays unchanged.
- Using a cloud model to create a first frame with the actor relit in the new environment, then feeding it as an extra reference. This worked briefly — but the effect holds only a second or two before reverting.
He wants a local workflow that keeps real actors while AI handles environments and possibly costumes, and asks if he's missing something in the H3 workflow or if another approach exists. The thread highlights that lighting consistency remains the weak link in performance-preserving video restyling.
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