Stacked Sectors

[Rachael]

Considering this setup is so hard to understand, at first, until you've done it a few times, and it's hard to understand it when it's put into words, I figured I'd try and put it in a diagram.

Keep in mind, it's hard for me to put this in words, so forgive me if this explanation is too brief. I am hoping the diagram says more than I can typing it out.

StackedSectors.png

Also, here is an example map, with the setup working.

StackedSectors.wad

Basically, think of it this way - the "source" is inside the tagged sector, and it *exactly* matches a "target" linedef in the exact same spot in the target sector, except for "misc" being set to 1 in the target.

If someone can put it to words better than I can, feel free. >_<

[Kappes Buur]

I don't know if this is supposed to be like that or if it is a bug,
the stacked sector effect does not show up for me

---

I expected to be able to see into the upper sector.

[Rachael]

Wow - thanks - I really wish somebody would've said something sooner. Fixing now.

[Tormentor667]

This is of good use, thanks for the thread

[Rachael]

Thank you, Torm!

[Zen3001]

is there a reason to use this instead of 3d floors?
I'm guessing it takes less performance

[Rachael]

Performance doesn't really have much to do with it.

The primary reason is to be able to map an upper and lower area separately, in a way that is more flexible than 3D floors. It's especially useful when a 3D "open area" is relatively small as opposed to the rest of the areas above and underneath them. In truth, both this method and 3D floors have their advantages and disadvantages.

[Graf Zahl]

Not to mention that both methods can be combined to use the strengths of each.

[Tormentor667]

Just noticed that the diagram isn't right as well - it says both times "ceiling plane" but that way it doesn't work. It needs two of them to be "floor plane"

[Rachael]

Crap, you're right.

[Rachael]

Redone. Used Photoshop this time instead of MSPaint to make it slightly better.

[Darkcrafter]

I once tried to understand what holy doom scriptures say but then my brain explodes and... I do it just like shown here and it works like a charm lol.

[Snarboo]

Thanks a lot for this! I've been investigating portals and stacked sectors for a future project, and this helped me work out how they function.

[Rachael]

Thanks a lot for this! I've been investigating portals and stacked sectors for a future project, and this helped me work out how they function.

You're welcome, and I am very glad that it has helped you!

[RailedRobin]

I just want to add that you can stack multiple sectors on top of each other. You just need to follow Rachael's example for all sectors. So if you have three sectors on top of each other, the bottom and top one will have two of the connecting linedefs, while the middle sector will have four (two for each connecting sector, with the proper tags).