I need to make a big fan at the Ceiling of a map. I can use polyobjects or even Boom trick to simulate a fan. Anyone know how to do this? Or a good tutorial on how to construct polyobjects? Thanks.

There is some tutorials on polyobjects here: [url:3hkegta2]http://zdoom.org/zdkb/zdoomindex.html hope these are useful. EDIT: I found this too: [url:3hkegta2]http://www.doomworld.com/xwe/cogwheel.shtml

Are you saying it is possible to make a poly you can stand on / walk under? From what I knew, it was impossible earlier; but last time I tried that was about 2 years ago, maybe something changed in engines since?

[quote="Firebrand":296fiuzp]There is some tutorials on polyobjects here: [url:296fiuzp]http://zdoom.org/zdkb/zdoomindex.html hope these are useful. EDIT: I found this too: [url:296fiuzp]http://www.doomworld.com/xwe/cogwheel.shtml Thanks, i will take a look. [quote="Crimson Wizard":296fiuzp]Are you saying it is possible to make a poly you can stand on / walk under? From what I knew, it was impossible earlier; but last time I tried that was about 2 years ago, maybe something changed in engines since? I never work on polys, so i really dunno what is possible to do and what not. I know that we can simulate fans using Boom features, but i really dunno how to do. I have made a simple GIF to show what i saw at a Boom Map (Phobos: Anomaly Reborn, E1M2). At that image i am playing with PrBoom Plus, so that is not a polyobject or somethig simillar: (Click image. 800x600 animated GIF, 200 Kb approx) [img:296fiuzp]http://xs224.xs.to/xs224/08066/boomfan882.gif.xs.jpg[/img:296fiuzp]

[quote="Crimson Wizard":1dmy1bzk]Are you saying it is possible to make a poly you can stand on / walk under? From what I knew, it was impossible earlier; but last time I tried that was about 2 years ago, maybe something changed in engines since? Nope, polyobjects can't be used with 3d floors because they need to be solid (1-sided lines). [quote="Karnizero":1dmy1bzk]I have made a simple GIF to show what i saw at a Boom Map (Phobos: Anomaly Reborn, E1M2). Hmmm, I really don't have a clear idea of how this was done, I'll have to look at the map myself, sorry <!-- s:oops: --><img src="{SMILIES_PATH}/icon_redface.gif" alt=":oops:" title="Embarassed" /><!-- s:oops: --> .

[quote="Firebrand":1skc6wnc][...] [quote="Karnizero":1skc6wnc]I have made a simple GIF to show what i saw at a Boom Map (Phobos: Anomaly Reborn, E1M2). Hmmm, I really don't have a clear idea of how this was done, I'll have to look at the map myself, sorry <!-- s:oops: --><img src="{SMILIES_PATH}/icon_redface.gif" alt=":oops:" title="Embarassed" /><!-- s:oops: --> . Download here: [url:1skc6wnc]http://www.doomworld.com/idgames/index.php?id=11822 Use PrBoom Only. I tryed to play with Vavoom, but it wont work. It is designed for Doom1.wad, map E1M2. You can play too with GzDoom but it will not work exactly in the same way. When you start, enter the big building in front of you, and go to the door on the rigth, just when you pass the stairs. I know how to do a "simillar" effect. Using a second player start, we can activate linedefs when that second player start walks over an activeable linedef. To make that second player start, we must use conveyors, moving all that keeps over them. The problem is that i dunno how to make that effect, and simulate the "3D effect". I tryed with the cogwheel you told me, but i couldn't reproduce. Maybe Janis know about that Boom tricks.

In any case you can use a fanl-thing represented by a model or a flat sprite (these are now available in vavoom)

CW's idea is a nice solution too IMO, anyway, I'll check how this effect is achieved in the map link you gave me and post here again if something comes to my mind <!-- s;) --><img src="{SMILIES_PATH}/icon_wink.gif" alt=";)" title="Wink" /><!-- s;) -->.

Refering that PrBoom map - could that be made by instantly appearing & dissapearing 3dfloors in different places?

[quote="Crimson Wizard":2npwu7sq]Refering that PrBoom map - could that be made by instantly appearing & dissapearing 3dfloors in different places? Yes, that should be a perfect idea. I will try to implement tomorrow. Thanks for tip. <!-- s:-) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":-)" title="Smile" /><!-- s:-) -->