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#1

Glitch: Grid Moving off center

Archive: 20 posts


This has happened in my new level, and I'm sure its happened to others to. When you use the grid to add new sections, its a tiny little bit off center to the old stuff you did.

Well, this happened to me, I rewound a few steps, and when looking closely, noticed the entire level moving a couple of millimeters on screen, most of the supporting structures in the level are pinned with DM, and yet still it moved. I did this 20+ times, trying to see if any massive weight, not pinned was moving anything but could'nt see a thing. But the level was definetly moving????

Very strange, anyone else come across it?
2009-08-17 11:06:00

Author:
GruntosUK
Posts: 1754


Ummmm, in what way is this solved?

Do you mean there is a certain point in the undo history where you can visibly see the movement happening?
2009-08-17 13:46:00

Author:
rtm223
Posts: 6497


it happens sometimes, because of the malleability and flexibility of the materials; sticking DM doesn't help in these cases: if you want everything to stay where you put it, keep on creating in pause mode, there isn't any other practical solution :2009-08-17 13:54:00

Author:
Shadowheaven
Posts: 378


I've had the same problem. Also, I've sometimes noticed an invisible force dragging my poppet downwards when I'm trying to place objects and stickers. It's usually when I place something, rewind and then try to reposition it. Could be something to do with the grid shifting out of alignment during a rewind, perhaps?2009-08-17 13:58:00

Author:
Ungreth
Posts: 2130


From what I could see, the issue of the grid is more a lack of a "true" grid system. The LBP grid tries to snap the grid to other edges around it instead of snapping to an exact grid position measured from the top left of the screen.

So, when you draw circles or other shapes where the edges are slightly off from the original grid, the grid tends to snap to those edges.

During the creating of Destiny I was drawing EVERYTHING as exact squares to a grid and, by the end of the entire process, everything still snapped perfectly to the grid.

I THINK the issue Ungreth is mentioning where there's an invisible force pulling on stickers when you're trying to place them is similar - the system trying to be smart. Usually this would happen to me when there was multiple layers with the material placed slightly offset.
2009-08-17 14:05:00

Author:
CCubbage
Posts: 4430


Ummmm, in what way is this solved?

Do you mean there is a certain point in the undo history where you can visibly see the movement happening?

Lol, yeah misleading title. It's been bugging me since release as to why it happened. I just noticed last night when zoomed right out.

It will probably explain why things randomly delete and you get that squelch sound every so often. It happened three times in the space of the level moving.
2009-08-17 14:13:00

Author:
GruntosUK
Posts: 1754


Hmmm... Rounding issue? I suppose the answer is to always allow room for error. I always figured it was the camera that was slightly shifting, not the material.2009-08-17 14:16:00

Author:
CCubbage
Posts: 4430


It was the whole level Cub. I moved to different parts of it and it all shifted maybe 2mm south west. I think sections deleting must be getting compressed when it moves.

I used to be a architectural glazer, fitting glass sometimes 6m x 4m large. We used to have to allow for a "deflection head" of 15mm in case the building every moved or shrank. Looks like I'll have to use the system in LBP
2009-08-17 14:22:00

Author:
GruntosUK
Posts: 1754


Also, I've sometimes noticed an invisible force dragging my poppet downwards when I'm trying to place objects and stickers. It's usually when I place something, rewind and then try to reposition it.

this is from your controls analog stick getting a little worn out. I have the same problem with mine and the analog stick not always going back to the true center position.
2009-08-17 14:23:00

Author:
deboerdave
Posts: 384


I dunno because it is strange that a 2x2 square can dealign from the grid, yet remain perfectly 2x2 in size (not maleability of the materials - they don't deform). Then it won't realign to the grid - it aligns to off-grid position. Yet new objects with same properties can align to the same grid spot that the original object won't. It's the "not realigning" that gets me. Especially when you can realign your square by using the corner editor.

I generally resort to standard procedure of hissyfit->delete. This is my catch all solution to may issues. Unless it's something really big in which case I can probably deal with working out of grid mode.

@doberdave - I really don't think that's it else you would see it all the time, not just when performing certain actions. Plus my dualshock3 is definately not worn out yet - it's preactically brand new.
2009-08-17 14:25:00

Author:
rtm223
Posts: 6497


It was the whole level Cub. I moved to different parts of it and it all shifted maybe 2mm south west. I think sections deleting must be getting compressed when it moves.

I used to be a architectural glazer, fitting glass sometimes 6m x 4m large. We used to have to allow for a "deflection head" of 15mm in case the building every moved or shrank. Looks like I'll have to use the system in LBP
Hmmmm - the only time I've ever had a section disappear (and I'm NOT saying it's the same situation you've run into) is when a whole part was accidentally not glued to dark matter (thought it was....) and was sandwiched so close to other material that it would randomly crush. This is, I believe, an extremely common thing.

I had this happen with a section in Starship Troopers.... I went to a backup and clicked on areas of the section only to realize that, although stable, the material was never actually glued to dark matter.

But based on your material slightly moving I'm going to pay a bit more attention to it.... I had never noticed my material moving when glued to dark matter so you probably know more than I do about it.


this is from your controls analog stick getting a little worn out. I have the same problem with mine and the analog stick not always going back to the true center position.

No.... I've seen exactly what Ungreth is talking about, and it happens periodically with either of my controllers (one of which is brand new). You'll be trying to place a sticker or decoration and as you try to move it up, an invisible force is forcing it down. It's really strange and frustrating, because when it happens it's REALLY hard to get it exactly where you want it.
2009-08-17 14:42:00

Author:
CCubbage
Posts: 4430


i get a get a drifting problem when i try to place an object and its definitely from my controller, But with stickers i have had that problem as well where the sticker moving by itself but only when i make the sticker bigger than the screen when i am trying to ensure the sticker cover the entire object.

with regrads to the grid i have had objects, take a two by two square for example, not aligned with the grid. and never have problem getting them back on to the grid.
example:
make a square with the grid.
move it slightly while the grid is turned off.
turn the grid back on and see that it is not on the grid lines.
now move it to the left or right and it stays off line of the grid, but in the same amount that it was previously off (the object is taking steps equal to the size of the grid).
to get it back on to the grid i can make to steps one to the left (still off grid) then one to the right then it snaps back to the grid (so the first move does one unit then second move in the oppisite direction does less than one unit back on to the grid.)

I mostly work with the grid turned off and have observed this, as sometimes i want to move a few specific things in the same direction the same distance so i turn on the grid.

some time objects dont fit to the grid becuase of there geometry. In these case i notice when moving them it some how selects a vertice and then kinda follows the sam principle as the object moves by unit then in the direction switch it aligns the selected vertice onto the grid (if that vertice is not already aligned). I am not sure how it chooses which vertice will be the "primary" vertice though.
2009-08-17 15:02:00

Author:
deboerdave
Posts: 384


I had a similar though probably unrelated issue in eddy mitter. at one point on a single platform, if you stand still you and the mushroom you have slowly move to the left. like a vibrating phone buzzing across a table in slow motion. only happens at that one bit too.2009-08-17 18:17:00

Author:
Matt 82
Posts: 1096


I had a similar though probably unrelated issue in eddy mitter. at one point on a single platform, if you stand still you and the mushroom you have slowly move to the left. like a vibrating phone buzzing across a table in slow motion. only happens at that one bit too.
Yeah, that one WAS trippy. Did you ever make sure that area was somehow glued to dark matter?
2009-08-17 18:25:00

Author:
CCubbage
Posts: 4430


I had a similar though probably unrelated issue in eddy mitter. at one point on a single platform, if you stand still you and the mushroom you have slowly move to the left. like a vibrating phone buzzing across a table in slow motion. only happens at that one bit too. I had an old level from when I first started creating that did this. I didn't know about permemant switches, and I had rigged a very awkward horizontal door that doubled as a platform. The movement of it worked fine, but when the player stood on it, they would slowly slide to the left. It was all very strange and frustrating.2009-08-17 19:07:00

Author:
BSprague
Posts: 2325


Yeah, that one WAS trippy. Did you ever make sure that area was somehow glued to dark matter?

the whole level is pinned with dark matter with that platform glued to the back wall. it's the player that's moving though, not the platform.
2009-08-17 19:33:00

Author:
Matt 82
Posts: 1096


the whole level is pinned with dark matter with that platform glued to the back wall. it's the player that's moving though, not the platform.
Yeah... I've seen strange things happen with vibrations when a specific block of material isn't glued along with the other surrounding material - but probably has nothing to do with your situation. Maybe if somehow the material ended up being on a slight decline that you can't see with the naked eye.

Maybe to experiment draw a flat glued piece of material right above it and see if it happens.
2009-08-17 19:42:00

Author:
CCubbage
Posts: 4430


I`ll give it a go. Pretty confident that it`s flat, but even if it`s not it shouldn`t do that should it? I`m not that fussed tbh, it`s not level breaking so I think I got off lightly compared to some of the others.2009-08-17 22:28:00

Author:
Matt 82
Posts: 1096


I've got the same problem as Matt, and I don't think its got anything to do with the platform being flat because I know mine is and anything thats on it slowly moves left. If you stay long enough in the level you might be able to see the boxes that I've placed on this platform start flying, not really flying, of course they just fling themselves really fast in some direction.

The popit cursor can't be caused by the controller as others said, well it can of course if the the analog has been worn out, but this always happens to me after I rewind when I place something wrong. Though I can only really remember it happening with LEDs, never stickers/decorations.

Also, I made a thread about the glitch awhile ago while I was making the level. If this is the same glitch then the only way as far as I've found out, is to capture the entire level and place it in a new moon crater.
2009-08-17 22:45:00

Author:
Shris
Posts: 126


this happened to me loads while i was making my apc, it got really annoying, still, not the worst thing i've seen, that was when the whole level changed for no reason, it's really hard to explain 2009-08-17 23:09:00

Author:
springs86
Posts: 785


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