This is because the collision boundaries interpenetrates each other. Even if an 
'actual shape' collision is used, they have direct contact to nearby pieces 
whats causing this . This is a nice sideeffect when doing explosions btw, but 
maybe not for your animation. I didn't deal with bullet physics in ICE yet, but 
with the older RBDs. You could limit the velocity for the first or second frame 
in the sim to a very low value, so the pieces will spread out just  a bit and 
release the limit on the second or third frame, and it should start to collapse 
slowly without popping.

 

sven

 

 

From: [email protected] 
[mailto:[email protected]] On Behalf Of Chris Marshall
Sent: Monday, February 02, 2015 7:30 PM
To: [email protected]
Subject: Re: mountain collapse

 

OK Thanks.
Well I've got something going, but I need the simulation to be a collapse, like 
huge icebergs crumbling, but the simulation starts with a 'pop', so all chunks 
explode outwards initially. I'll keep digging.

Any thoughts?





 

On 2 February 2015 at 18:17, John Richard Sanchez <[email protected]> 
wrote:

yes

 

On Mon, Feb 2, 2015 at 12:58 PM, Chris Marshall <[email protected]> 
wrote:

OK So I've managed to shatter my object quite nicely following Adam Sales Vimeo 
demo, which is very useful indeed. But he then uses Momentum to do the 
simulation. Is it not possible to use the factory bullet rigid bodies?

Thanks

 

On 2 February 2015 at 17:03, Chris Marshall <[email protected]> wrote:

OK Thanks I'll see how I go.

 

On 2 February 2015 at 16:58, Mario Reitbauer <[email protected]> wrote:

Implosia 2.5 is still out there. You could try that for shattering.

 

http://traypen.com/rr/bak/iamvfx/ImplosiaTools25.xsiaddon

 

Best would still to use Momentum but as you might not want to spend money on 
that one you can try breaking your pieces with implosia and then simulate with 
with bullet in ice.

 

2015-02-02 17:46 GMT+01:00 Chris Marshall <[email protected]>:

the Shatter script? 

 

On 2 February 2015 at 16:42, John Richard Sanchez <[email protected]> 
wrote:

Of the top pf my head. Use the shatter script then use rigid bodies. Plot it 
and in the Animation editor you can play with the timing. 

 

On Mon, Feb 2, 2015 at 11:29 AM, Chris Marshall <[email protected]> 
wrote:

hi All,

I need to very quickly destroy a mountain, well a bit like those iceberg shots 
of them collapsing into the sea, but without the sea. This is kind of a quick n 
dirty effect, but I need to sort it pretty quickly. I'm not running any plugins 
here so could do with some quick thoughts on how to breakup a mountain very 
randomly into lots of chunks, then make it collapse (I can probably do that 
bit).

Any thoughts would be great.

Thanks
Chris

 

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