Condo/office/mall builders

I’ve become very interested in tall condo, or any type of buildings, and I want to try building some for fun. However, if I wanted to try and possibly sell a few, I don’t understand what “rezfluax” is or how to use it. (I see it spelt different ways so I apologize). Can someone explain it?

Rez Foo, Rez Faux, Builder's Buddy and other "Building Rezzers" are scripted tools that make it easier to set up and move a large structure. They all work in roughly the same way, but the commercial ones, like Rez Foo, have more features aimed at commercial builders. Building rezzers are a convenient way to transfer and set up a building that is too large or has too complex a number of prims to link together into a single linkset. The documentation for the rezer system will explain limitations on things like component permissions.

The Builder creates their original building and makes whatever linksets they can to group the building into reasonably large chunks.

In each linkset, and in each unlinked prim that has to be part of the build (like unlinked doors), they add a "component" script. Each linkset or loose prim should have a unique name.

At a convenient place in the building's area, they place a prim that has the rezzer's control scripts in it. (I rather like making this prim look like the cornerstone of the building...)

You touch the control prim, and it activates some sort of menu system. One command on that menu, such as "Record", will send a query to all listening component scripts in the area that are owned by you. Each of those scripts replies back with the exact position coordinates of the linkset or prim they are in. This is recorded by the control prim.

You then take each linkset or loose prim into inventory, then place those collected parts into the rezzer prim's inventory.

Then you test the build, by touching the controller again and clicking the "Build" option (or whatever it is called for that rez system). The rezzer makes in-world copies of each item in its inventory that was recorded, and then moves each piece to its recorded position, relative to the rezzer prim.

If you move or rotate the rezzer aftar that, either the build moves with it, or there is a reposition command to make the build catch up.

Most rezzers also have a "done" command that removes the component scripts from the rezzed parts, so the extra scripts are not in the final build.

On a seperate note: You mentioned wanting to make a "very tall condo". Be aware that there is no way to vertically partition a parcel. So the condo unit on the 3rd floor is in the same parcel as the one on the 30th floor, or the 300th floor, and shares the same media stream, access rights, and prim count limits. While it is possible to make very tall buildings in SL, the limitations of building in SL are not well suited for that task. You end up having to buy a lot of other land in the same sim to get enough prim count, and it is almost impossible to rent out diferent floors to different residents, as they all have to share the same vertical parcel restrictions and permissions.

The designers of SL apparently thought all building would be single-floor, ground level structures, Or maybe a limited number fo floors all belonging to the same resident, like Suburban USA. They were not considering the possibility of dense urban builds, where multiple residents get stacked vertically, and lots of resources need to go into a small ground footprint.