ZDoom

Wow, thanks a lot, RailedRobin! This is extremely helpful. :D

zhd

[quote="zhadoom"]Hello Rachal :D

Thank you for the explanations. Very helpful.


Hello RailedRobin :D

Thanks for your hint.
Do I understand this right? The middle (of three) sector has four linedefs.
Two of them are for the connection with the bottom, the other two are for the ceiling.
What do you provide as arguments for the middle sector. In GZDB I can select "bottom", "ceiling" and "both".

:?

Thanks in advance
zhd[/quote]

Yes, the middle sector will have four linedefs. All you have to do is treat each pair of linedefs (floor and ceiling) as seperate pairs, so no "both" or such. However, remember that you will need one linedef from each pair to be linked to the middle sector. You will have three different sectors linked after all.
If you want I might be able to throw together an example.

EDIT: Decided to make a quick example anyhow.
[url]https://www.mediafire.com/file/qktv77zm5r0hzim/PORTALS.wad/file[/url]

Hello Rachal :D

Thank you for the explanations. Very helpful.


Hello RailedRobin :D

Thanks for your hint.
Do I understand this right? The middle (of three) sector has four linedefs.
Two of them are for the connection with the bottom, the other two are for the ceiling.
What do you provide as arguments for the middle sector. In GZDB I can select "bottom", "ceiling" and "both".

:?

Thanks in advance
zhd

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).

[quote="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.[/quote]
You're welcome, and I am very glad that it has helped you!

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.

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.

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

Crap, you're right.

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"

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

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.

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

Thank you, Torm! :)

This is of good use, thanks for the thread