Echo: A Depth-Mapped Light Wave Effect for Sound-Driven VideoEcho: A Depth-Mapped Light Wave Effect for Sound-Driven Video
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started
Title: Echo — a place you can only hear šŸ”Š
Primary effect: Bring your own effect: "Echo" 🌊
Process note: šŸŒ‘ Echo is a black screen where every sound sends a wave of light through the scene in real depth.
šŸŽžļø Starting footage: one licensed stock clip of a temple corridor from invideo's stock library. The sound is original, synthesised for this piece. The voiceover is my own.
šŸ’¬ What I asked for: a black screen where each ping lights the scene by distance, built from a depth map, with controls for each wave, afterglow, wave thickness, contour lines, outlines, colour and a final reveal.
šŸ› ļø What was built: a depth map (Depth Anything Video), two "Echo" custom effects on the depth map (a Multiply layer for light and an Add layer for glow), an "Echo colour" effect on the footage, and keyframes for six waves and the reveal. The first build was done by Claude, connected to invideo Editor through invideo's MCP server.
šŸŽšļø Refinement: I asked invideo's own agent (Agent Two Lite) in the editor to raise Afterglow from 0.14 to 0.3 on both Echo effects. It made the change on the timeline, and that conversation is shown in the video. I also tried a longer afterglow and a gold colour, both shown.
āœ… All building and the final cut were done in invideo Editor.
Back to feed
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started