animate a camera using an HDRI background w/o slipping

[britbunkley]

Can one animate a camera using an HDRI background without the foreground objects slipping? I've attached my settings and a clip of it slipping.

[romullus]

You can use Corona bitmap with dome projection mode.

[maru]

Yes, as Romullus said, you can use Dome mapping for this:
- an older Max tutorial - https://youtu.be/1cZ7k6BJd30
- a newer C4D tutorial - https://youtu.be/0q4f9ydj6tA

- Chaos Docs - https://docs.chaos.com/display/CRMAX/Corona+Bitmap#CoronaBitmap-DomeMode

Alternatively, you could render your backplate without the objects and then use some sort of tracking software (possible with After Effects, PFTrack, definitely many other apps, probably Blender). But that might be an overkill, especially if you are able to get away with dome mapping.

[britbunkley]

Thanks! This mostly works, so far, but it is very tricky to limit the dome distortion with the radius and camera height. I can't seem to get rid of it 100%, but it is very close at these settings... Now to try and get that hair sorted (using black in the slot still has it come out as brown).

[Juraj]

That's why this sort of camera mapping is better done with actual geometry, like chamfered half-dome, or even one that maps the sphere into more exact shape, in this case a rectangular room.

But it will always look like trick, this will never work 100perc :- )