How to repaint surfaces in a room walkthrough and leave the floor alone
Tell Vizard Agent which surfaces should change colour and which must not. It maps where each one appears across the whole walkthrough, builds a tracked matte for them rather than relying on a colour filter, and checks at every camera move that the surfaces you protected, usually the floor, came through untouched.
What do you type into Vizard Agent?
List the surfaces on both sides of the line. The request that causes rework is the one that names only what changes, because every surface you leave unnamed becomes a judgement call made on your behalf. "Make the interior white" covers at least four jobs, so tell Vizard Agent exactly what's in and what's out.
Prompt
What does Vizard Agent actually do?
A colour filter changes everything that happens to be that colour, which in a room means the cabinets, the floorboards and part of the wall. What works is a matte that follows each surface as the camera moves past it. Vizard Agent tries the cheap approach first, then builds that matte. In the session behind this article it:
- Sampled frames of an interior walkthrough, rendered a short colour test and reviewed it before touching the full video.
- Mapped where each surface appears across the whole walkthrough and found every place the cabinets show on a contact sheet.
- Tested a selective treatment that left the floor untouched, and reran it with a corrected mask when the first one bled.
- Timestamped the samples, built surface-only overlays from full-size key frames, rendered the recoloured walkthrough, compared it with the original and strengthened the treatment where it read too weakly.
- Tracked the cupboards with object segmentation, read the log to check whether it had returned a matte or a cutout, and generated the explicit matte a reliable composite needs.
When does this not work well?
The surfaces have to be distinguishable from each other in the first place. A white wall meeting a pale floor, a reflective worktop, or a room lit so unevenly that one surface reads as three colours all make the boundary hard for Vizard Agent to hold. Glass and mirrors still show the unchanged room.
Common questions
Can it change only the cabinets? Yes. Vizard Agent tracks them as their own surface.
Will the floor be safe? Yes, and Vizard Agent checks it across the whole walkthrough.
Can I see a test first? Yes. Vizard Agent tests one section before the full render.