Wouldn't it be more useful to generate a vector model than a "3d image" voxel/radiance field/splats/whatever it's called? Apart from the use case "I want to spin the thing or walk around in it" they feel like they are of limited use?
Unlike say a crude model of a fire hydrant which you could throw into a game or whatever. If the model is fed some more constraints/assumptions? I think I saw some recent paper that did generate meshes now instead of pixels.
See my comment above about meshes. Games should adapt to new representations, not the other way round.
What do games need? Relighting, animation, collision. All of these can be done with non-mesh objects. At the moment it's all in it's infancy compared to conventional 3d but it won't stay that way for long.
Unlike say a crude model of a fire hydrant which you could throw into a game or whatever. If the model is fed some more constraints/assumptions? I think I saw some recent paper that did generate meshes now instead of pixels.