Journal #8798

you could make the elevator out of CLIP and without any sound, entities probably cant be made only out of CLIP but you could hide the tiny solid brush somewhere inside a wall. You could trigger them with a delayed trigger... Or you could simply make the entire area between levels of low gravity but in both cases simply walking on the platform would need to be solved. You could somehow count the time a player spends on the platform, if lets say he spends 2 seconds, the elevator would activate, otherwise if the player would walk or run through it, it wouldn't reach 2 seconds so the elevator wouldn't activate... Maybe just experiment

Water brush?

You should try to use BEVEL on the face you want to be passable if anything else won't help.
EDIT: No, if you have all faces of your func_detail textured with BEVEL and the top face textured with CLIP you won't be able to pass through the top face, however, BEVEL faces are still passable, so no.
Maybe you can use a trigger_push?
EDIT Number 2: If you, however, use CLIPHULL1 texture on the top face, it will block any STANDING players, so they have to crouch and then jump to get on the top face. Use CLIPHULL1 texture on the top face and BEVEL on the others. If a player, however, needs to move downward then he needs just to start crouching and he will fall down. And use it only with func_detail, otherwise it won't work.
Here's an example map: http://twhl.info/vault.php?map=6195

Huh. Interesting. I've never tinkered with the various ZHLT textures beyond the usual ones. Something like that may be useful... Indeed, it's more or less the exact sort of thing I was after for moving downwards. I'll have to do some tests to see if I can adapt it to my particular map.

Maybe I should do some experiments with the rest.

I don't even entirely understand what you want to do.

^
Me neither. Could we get a simple drawing or a sketch explaining that, please? :3

Play CLIPHULL1 Demonstration map and you will understand. It works like those platforms from Terraria.

Ah, OK.
Wait, the thin wooden platforms where you can go down if you press down, and you can pass through them if you go up but they stop you from falling through?

Yeah, something like those platforms. I wonder how Jessie's map will look like.

Something like this, guys.
Thanks, Windawz, for the CLIPHULL idea. You have to specifically do a crouch jump to get up to another platform, but that's a small price to pay for this idea to work at all =P

Do you have that low gravity set by default? You could use gravity-changing triggers instead if so. They only change the gravity for a person that activated it. A perfect thing to use for a Hyperblast HL port.

No, no, the gravity is already triggered. I tried to demonstrate that by jumping outside of the elevator a few times in the video. Changes to low when you move into it, and changes it back when you leave it.

Platformer-Life!

Nice!