https://patricksheedy.com/tags/minimax/Recent content in MiniMax on Patrick Sheedy - Software DeveloperHugoen-usFri, 02 Oct 2026 12:36:43 -0700https://patricksheedy.com/posts/minimax-h3-character-swap-part-2/Thu, 01 Oct 2026 00:00:00 +0000https://patricksheedy.com/posts/minimax-h3-character-swap-part-2/<p>In this guide, you will learn how to seamlessly replace a character in any video using MiniMax H3 and ComfyUI. By combining dynamic video masking via SAM 3 with reference-to-video LoRAs, this workflow extracts motion and scene lighting from a source clip and naturally composites a new target identity in place of the original subject—complete with custom facial expression prompting and seamless edge blending.</p> <h2 id="minimax-setup">MiniMax Setup</h2> <p>If you don&rsquo;t have MiniMax setup yet (skip if you have MiniMax working already)</p>