banning all megaprims larger then 256m

banning all megaprims larger then 256mx256m *the size of a full region

how many people use those anyways, they cause crashes and are a lagfest ?

I have heard they are very unstable. I seen the creator post on the blog one day tell Torley not to use them because they can be used for terrorism lol.



That was on Torley Lindens land. Not sure how much of a problem they really are tho. I used to Use them back in 2006 on My old region. Could explain the daily crash mode we were in lol

/me contacts the Department of Homestead Security.

If they gennuinely cuase problems, yes, ban 'em. It's not as if using four 256x256 prims is such a hardship if 512x512m became illegal, is it?

omg i can't remember if it was a 512 or a 256 but i popped one this one time and was like..what the heck nothing happend..i looked all over for it cause i thought it would have been the size of a 512 lot..
then i looked on my minni map and it sucked it all up..i scanned out and it covered the whole sim..
i was like HOLY SH**!!!!
too big for me to do anythign with thats for sure//

Are these the new megaprims or the older Gene Replacement ones? I was under the impression the new megaprims were much better behaved.

i've heard anything over 50x50x50 is when you start feeling them..

I use the 20x20x60 cylinders as parts of builds and they don't cause any noticeable problems

i use them in a mall i am working on ..the long thin ones more than anything..nothing too thick and things seem to be fine also..

I'm still leery of spanning sim borders with megaprims, but that may be a superstitious hold-over from H1 days. Actually, I use some carved-up megaprims (narrow cylinder sections, for example) that start out a lot larger than they end up, so I can imagine uses like that for dimensions larger than 256 that don't end up with stuff spanning sims. Never had a reason to go anywhere near that large myself, though.

Personally, I'd vote against *any* enforcement of megaprim controls until they can be constructed and adjusted with the build tools.

People stuck with the new, Nerfed Openspaces are gonna need megaprims very, very much.

dont get me wrong i use them too, where ever i need, they are great and indeed. i hope we will be able to create them ourselfs some day

i try avoiding gene's prims, but are very happy with those from : MrsDay Oh she created nice parcel sized prims, for many dimensions, have no side effects and afaik all good centers. *i have those as a freebie myself, but removed all above 256m from it

but do people really use 1024m prims ?

there was someone a while back in the forums that i think was gonna set one off or something like that..it was back when some people in the forums and in sl were making tons of different sizes right before lindens were gonna cut off making anymore mega prims..

i don't know if he ever did it or if anyone really ever made one..

the only time i ever really heard it talked about was in that thread..

I've seen it argued that on a private island sim, where the sim is not edge to edge with anyone else, it's safe to use the "over 256M prims", and that they won't affect any sims but your own. Some private sim owners reportedly have used them well, for making a "ground plane" that extends to the limits of vision, or for making sky domes.

But these are the exceptions to the usual case.

Imagine someone rezzing a 1024 x 1024 megaprim over a mainland parcel, or over a private island parcel that has lots of adjacent sims, like the FairChang Islands. It could blot out the whole sky in the sim that it is rezzed in, and be a barrier to flight through its position. And in all the adjacent sims it could, and likely would, cause problems, even though it would be phantom in those sims, and would not even be visible if your draw distance wasn't high enough to see the center point of the megaprim.

So I would say that if a private sim owner wants to allow the huge megaprims on an unconnected sim, that is up to them. But I wouldn't allow them on the mainland or on connected sims that don't all have the same owner.

I made some of the "new" megaprims, even though in general I am opposed to megaprim use. I made over 300 specific sizes of them, because there are some building situations where, quite simply, nothing else will do. For example, making a 33M diameter hemispherical dome, with just one prim. Or making a perfect Gothic Arch that is 50 M tall, with just five prims.

The "new" megaprims had a technical limitation of no more than 100 M in any direction. The person who created the patch to the client that made it possible for many people to make new ones put that limit in his code, and most of us abided by that limit, and didn't try further hacks.

The "new" megaprims, the ones that show someone other than "Gene Replacement" as their creator, do tend to be "better behaved", mostly because they are available in a wide range of sizes, without relying on cuts, dimples and other prim torture to alter their apparent size. So, for example, a 50 M x 50 M x 1M mega from the set that I made acts pretty much like any other prim. But if you dimpled and path cut that one to make a 25 x 25 x 0.1 M platform, you'd have a bounding box that was much larger than the apparent size, and would have trouble standing on the surface or rezzing things on its surface. The more you warp ANY prim, the more problems it can cause.

what Cerra said, they have uses, though generally only at the estate level.

LL employees have made statements saying that it's not so much a stability issue, as it is a possible griefing issue.

almost every issue with megas, even under H1 had to do with cuts, and the sim not registering the cuts bounds (this happens with normal prims too) intelligent use could eliminate 99% of those problems.... haven't seen any problems under H4 personally

I use various mega prims in my shop and haven't noticed an ounce of trouble out of them. Of course, they're all under the 256x256x256. I don't think I have any that's over 60 on any side. But these are the ones I made myself when LL *ahem* allowed us a brief span in which to do it.

I never could get the old Gene Replacement ones to work correctly. Well, not in Havok1, anyways.

I do seem to recall LL discussing in the past year a change to make those larger than 256 not rez or to shrink when rezzed. But.. my memory is faulty.

They discussed it, but relented when several private sim owners gave examples of valid situations where nothing else would do.

Ban on mainland, leave on Private simulators, since you can't disturb (parcel enroachment... or whatever is the english word ) anyone (others than your guests eventually), since they aren't rezzed outside of your estate (or linked sims).
To discover a "fair" usage of +256m prims, visit my main island (you can do the same with slight smaller ones... but why?).

Oh, good. Nice to know my memory isn't completely useless

And none of my mega prims encroach on another's parcel. I do not see why I should be penalized just become some idiot or jerk does something stupid? Oh, wait.. this is LL we're talking about.

One of the biggest problems with the Gene Replacement megas, aside from intentional misuse, was that people would only consider the visible portion if the megaprim when trying to account for parcel encroachment. The problem there is that if, as was the case with most of the usable sizes of the original megas, the visible size was the result of a lot of cutting and dimpling, the bounding box for that mega often could, and did, extend into other parcels.

Simple example:

Lets say I owned a 128 x 64 parcel, and wanted to put a prim lawn on it. I happened to have a 128 x 128 megaprim cube. So I path cut that cube to make it 128 x 64, and fit it neatly onto my parcel, right to the edges. Am I encroaching on anyone? Yes. I'm encroaching on an entire 126 x 64 meter area that is in the part of the megaprim that was removed by the path cut. In that area, the other parcel owner will get wierd problems rezzing, and have other issues.

On the other hand, if I had a real 128 x 64 megaprim, made in the new batch, and fit that right to my parcel edges, I am not encroaching at all.

The only way to tell the difference, other than the problems the neighbors will have in the first case, is to select both megas and see where the corners of their bounding boxes lie.

Example 2:

You take one of the new 100 x 100 x 100 megas and use it to make a shallow dome, 30M in diameter, by hollowing and dimpling a sphere. You center that on a 32 x 32 parcel. But it is still encroaching on all other parcels that fall within the area of its original 100 x 100 x 100 bounding box.

I've seen excellent use of megaprims over 256 X 256 X 256 metres. Most frequently on unconnected sims... The Space Pirates sim (RIP) comes to mind as an obvious example. But I've seen others where extreme-sized megaprims are used to great effect to create otherworldly skies, environments and 'backdrops' that extend way beyond the sim boudaries.

Don't confuse the tool with the mentality of the people who abuse / misuse them. Megaprims by their very nature require a bit more thought than usual as to how they're going to be used.

The old Gene Replacement megaprims came in only a very few basic sizes, and other sizes were made by using cuts and hollows. The megaprims with cuts and hollows were the problematic ones; they tended to cause lots of weirdness. The newer megaprims made during the availability window in 2007 are prims of the desired basic size; they are more server and viewer-friendly.

The problems with prims bigger than 256m are a bit different. Because they cross sim boundaries by definition, they cause problems related to boundaries. (Making one physical is Right Out.) They also have added griefing potential, as it can be difficult to even figure out where the offending prim is located.

I think I'd go even a bit farther than the poll does; not only outlaw prims larger than an entire region, but also ban placement of megaprims (even the ones of legal size) crossing a region boundary. Yes, it means you'd have to be careful if you place a 256x256 prim, positioning it to exactly <128.0,128.0,z> by the numbers, and most rotations of such a prim would be illegal. I'd allow an exception for multi-region private estates, where connected sims have a single owner, and might also be persuaded to allow larger prims on isolated islands so long as they did not extend onto the land mass of any other island; that would typically impose a 768x768 size limit given the checkerboard way that LL places isolated islands.

I've seen the really big ones used to replace the water and horizon at sim edge, to avoid parallax effects making the fact that you had the whole sim in a "skybox" obvious.

I would agree on banning any megaprim that crosses a boundary between two actual sims. Even the maker of the original megaprims admitted that it was a bad idea for megaprims to cross sim boundaries.

But it was discussed earlier in the forums; and proven fairly well by those defending the use of huge megaprims for water planes, land planes, and sky domes; that if a sim is not touching side to side with a sim that contains an over 256 M2 megaprim, it does not see or get affected by any prims in the other sim.

If you visit a disconnected sim that has a 256 M true void (no sim of any kind) between it and its neighbor, you will find that you can't see from one sim to the other, even though you fly right to the edge of one sim and set your draw distance to 512 M. But place an OpenSpaces sim, or any other types of sims, in direct connection with these two sims, and you can see from one to the other. In short, if you can't walk or fly from sim A to sim B, then nothing you do in sim A affects sim B, and vice versa (unless both share the same server, in which case there may be resource/lag issues in sim A if sim B is extremely laggy). Disconnected sims transmit no data to each other about what is in the nearby sim.

If the prim is sticking out into the void (any void) and there's no part of the prim obscuring any part of any sim, that shouldn't be an issue.

I have never seen this suggested anywhere else, that being in the cut out volume of any prim (mega or not) would lead to rezzing issues. I've certainly never had any such problems, and I've done a lot of building inside the projected volume of cut and hollowed 100m spheres in skyboxes.

What exactly are you referring to?