Second Life Forums Archive - Re: What happened to the "joints"

Beatfox Xevious

is THOUSANDS OF PEOPLE

Join date: 1 Jun 2004

Posts: 879

10-30-2006 01:25

In this thread, Andrew stated that he'd look into the broken joints problem. Also, I talked with Brent Linden in-world around the same time, and he said he'd let the physics engine team know about it.

Any word on a potential fix yet? I've had to suspend sales of my windchimes (the same chimes Pratyeka refers to in the aforementioned thread), and I have no ETA to give all the customers who have been coming to me about the broken chimes. Any estimate would be greatly appreciated.

_____________________

My Beatworks: Zephyr Chimes wind chimes, the KanaMaster Japanese kana tutor, and the FREE Invisibility Prim Public. Look for them at the Luskwood General Store in Lusk (144, 165).

"You have been frozen. You cannot move or chat. A pony will contact you via instant message (IM)."
- mysterious system message I received after making off with Pony Linden

Jesse Linden

Administrator

Join date: 4 Apr 2005

Posts: 285

10-30-2006 11:23

Hi Beatfox, I will pass this along to Andrew and Brent for you.

Andrew Linden

Linden staff

Join date: 18 Nov 2002

Posts: 692

10-30-2006 11:41

I'm looking into it today, along with a handful of other bugs. I'm focusing on the buoyancy problem first.

Rumor has it there is a problem with wind. The chimes appear to use the wind, so the problem with the chimes may be related to the wind.

Andrew Linden

Linden staff

Join date: 18 Nov 2002

Posts: 692

11-03-2006 08:49

I was able to track the "wind problem" down. There is nothing wrong with the wind. The problem is that for small or long-thin objects (< 0.2 meters on two sides) the mass would be incorrect (very small). The way the wind is typically used is to measure its velocity and use an llSetForce() call to model it. Since the mass would be too small the force would have a much stronger effect. The result would be disater for anything using joints -- the joints have a "constraint solver" and a too strong outside force would cause the solver to go unstable.

The bug is fixed in our codebase, but has not been released yet.

Edit to fix spelling and wording.

Re: What happened to the "joints"
Beatfox Xevious is THOUSANDS OF PEOPLE Join date: 1 Jun 2004 Posts: 879	10-30-2006 01:25 In this thread, Andrew stated that he'd look into the broken joints problem. Also, I talked with Brent Linden in-world around the same time, and he said he'd let the physics engine team know about it. Any word on a potential fix yet? I've had to suspend sales of my windchimes (the same chimes Pratyeka refers to in the aforementioned thread), and I have no ETA to give all the customers who have been coming to me about the broken chimes. Any estimate would be greatly appreciated. _____________________ My Beatworks: Zephyr Chimes wind chimes, the KanaMaster Japanese kana tutor, and the FREE Invisibility Prim Public. Look for them at the Luskwood General Store in Lusk (144, 165). "You have been frozen. You cannot move or chat. A pony will contact you via instant message (IM)." - mysterious system message I received after making off with Pony Linden
Jesse Linden Administrator Join date: 4 Apr 2005 Posts: 285	10-30-2006 11:23 Hi Beatfox, I will pass this along to Andrew and Brent for you.
Andrew Linden Linden staff Join date: 18 Nov 2002 Posts: 692	10-30-2006 11:41 I'm looking into it today, along with a handful of other bugs. I'm focusing on the buoyancy problem first. Rumor has it there is a problem with wind. The chimes appear to use the wind, so the problem with the chimes may be related to the wind.
Andrew Linden Linden staff Join date: 18 Nov 2002 Posts: 692	11-03-2006 08:49 I was able to track the "wind problem" down. There is nothing wrong with the wind. The problem is that for small or long-thin objects (< 0.2 meters on two sides) the mass would be incorrect (very small). The way the wind is typically used is to measure its velocity and use an llSetForce() call to model it. Since the mass would be too small the force would have a much stronger effect. The result would be disater for anything using joints -- the joints have a "constraint solver" and a too strong outside force would cause the solver to go unstable. The bug is fixed in our codebase, but has not been released yet. Edit to fix spelling and wording.

Welcome to the Second Life Forums Archive

Re: What happened to the "joints"