ZDoom

I haven't checked if it works for crazy offsets or portals. Doesn't interpolate at all though.

I was mostly aiming to make a "3D" version of SpriteOffset that would work with models, and I'm pretty sure it doesn't handle any of those cases either. I could look into supporting it later tonight though.

Also, does it handle portals correctly?

(I didn't check the code, currently occupied, it's just a quick passing remark)

I could certainly appreciate this, especially when it comes to actors with +NOINTERACTION and not moving which are the most optimized of them all.

However I'm curious. Does the sprite render when the image is, say, around a corner and out of sight of the original actor?

[url=https://puu.sh/HYUyP/52c0b0a3c6.png]Take this for example.[/url] Pretend the player is some regular actor, and the map spot is the projected location with WorldOffset. Does the image render appropriately and de-render if out of sight based on WorldOffset?

Second, what about interpolation?

[url=https://github.com/coelckers/gzdoom/pull/1441]Pull Request[/url]

Adjusts the thing's 3D position on render side. This allows for adjusting a thing's visual position without impacting their hitbox. I wanted to do something like this as a hit-stun effect for my TC (although I ended up rolling with a different effect because I couldn't do this). However I still think this can be a incredibly useful feature.

This is an example script that gives the Doom imp fireball a crazy spinning effect, ala Shotzo's bullets from Kirby: https://mega.nz/file/K2IVASBZ#58jjARYMOA_BEvfGHwKfFkW6U6U8xPB3NI4YXHyYTUw

(I am relatively inexperienced with GZDoom's codebase, mostly have dug around with vanilla Doom, so please let me know if there's anything important I missed.)