I’ve got it packed up in some kind of transferrable form.
Step 1:
Download the following .zip file, and unpack it into the ‘Content’ folder of your project.
It contains 3 .uassets:
>‘decal2’ material
>‘projection_decal2’ blueprint
>‘video’ media object
Step 2:
1 - drag the blueprint into the level
2 - choose the camera actor you want to project from
3 - choose the texture you want to project
4 - offset the decal bounding box to enclose the objects to are try to project onto
Step 3:
I added a blank media texture to the decal material to check that it hooked up okay. It won’t do anything without some blueprint shenanigans, but it looks like a viable workflow.
Bit ‘bare bones’ for now, but let me know if it works, and if there is anything I should do to improve it.