Hi there I’m doing a virtual art gallery for a client, but they also want sculptures as a part of the experience. But since they will be importing their own assets and since they don’t want to use the photogrammetry process I was thinking of using a video that records the sculpture on a turntable with a green screen that is used to create a alpha channel for the video. So far I’ve set up a 3d test model and a version of it as a image texture below (to show the client a comparison), but the question is can I replace that image texture with a video and it’s alpha channel? If not got any other ideas on what I could do?
Thanks in advance.
In the end I went with using a video with a green screen and used UE4’s Chroma Key Material…
Loading in the video this way…
With this result…
If that helps anyone else out in the future.
yea you can — but not with normal mp4, h264 drops alpha. turntable on greenscreen → key it to a real alpha source first (export as png or exr image sequence with alpha via ImgMediaSource, or prores 4444 / webm vp9 alpha / hap alpha as single file). then you either do a Translucent Unlit material with MediaTexture color → Emissive + alpha → Opacity on a plane, or skip the material wiring and drop in alpha video player from fab Alpha Video Player - Transparent Video UMG Widget & UI Media Component (UE5) | Fab — UMG widget that already handles the alpha blend modes (premultiplied vs straight) so no sync drift like the old split matte trick, Win64
