sim boarders and prims

Hi, anyone know how I can keep my objects from going phantom when they rest on sim boarders?

I don't think you can. If the root of an object is on sim A and it hangs over onto sim B, then it doesn't really exist on sim B. The only thing you could do is copy the object and make a mirror of it (or a transparent version of it on the other sim.

ahh ok, cause I have a bridge coming from one to the other and we fall through.

I mostly make 3 transparant prims of 10x10 next to each other.

PRIM A | PRIM B | PRIMC

.. SIM 1 | SIM 2

Make of prim A the main prim.
PRIM A at 5m from the sim border.
PRIM B and PRIM C go over the sim border. (SIM 2)


At SIM 2 you do exactly the same with 3 other linked prims.
PRIM A at 5 m of the sim border and PRIM B and PRIM C over the simborder. (SIM 1)

PRIM C | PRIM B | PRIM A
................ SIM 1 | SIM 2

standard trick is to double up on either side, extending into the other....

1: You can't share prim count from one side to the other. What is in one sim remains in that sim's resources, and that includes prims rooted in one sim but sticking over the edge into another. Where the root prim or center of the single prim is determines where it is counted.

2: Any prims that stick over the line into the next sim are phantom as far as the other sim is concerned. BUT, when you are going from Sim A to sim B, for a short distance prims rooted in sim A can still support you. This is vital to cross-sim building, because when you step over the edge, the sim you are leaving doesn't think there is a prim there for you to step onto, unless there is a prim sticking over the border from its side. So you start to fall through as you step across. So you need to do a prim overlap on the border. One prim that is linked to the other side, sticking over the border from each side. I usually duplicate one full prim in both directions, linked to the far side and textured 100% alpha, while the prim it duplicates is one with a non-alpha texture.

3: You can't link a prim in sim A to a prim in sim B. So to have an overlapping prim that is entirely in sim A and linked to a linkset in sim B. you have to link it while it is in sim B, then edit linked parts to slide it over the edge into sim A.

Keep those facts in mind, and yes you can build over a sim border.

===

Details on how to seamlessly create a prim bridge between two sims can be found here:

/8/86/247749/1.html

All it takes is 2 extra prims, with one half of the bridge or stairs on one side of the border, and the other half on the other side. Read the above thread for my detailed explanation.

Thanks Guys you rock!

Both sims are yours, right?

Yes Ma'am

and as soon as my SIm comes back (been an hour) I will do it correctly ; ))

Okay. Lol Sorry.

Glad to help. I just wish the Moles who built the roads on top of sim borders in Zindra had read that post, and others similar that have been posted in the forums for well over a year. If the moles had used this trick, the roads in Zindra would be usable.

By the way, some others have reported that you can also do this trick by ensuring that the centerpoint of an overlapping prim renains on the root side, and can thereby eliminate the extra prims.

Example:

On side "A", the last prim in the bridge is a 10 M prim that is 2/3 in sim A, and 1/3 in sim B.

On side "B", the last prim in the bridge is a 10 M prim that is 2/3 in sim B, and 1/3 in sim A.

Because the center of this last prim remains in the sim, the sim its center is in doesn't treat it as Phantom.

The down side of this way is that you have to match the position and textures of the prims on both sized perfectly, or cover the overlap with one additional phantom prim that is a bit higher, or else you'll see nasty texture flicker in the overlap area.

I prefer the method I described in my earlier post and the thread it links to, where the "extension" is a full prim whose edge is at the border. Then I can make the extension fully transparent and have no flicker at all.