I have a sim of a character on the edge of a cliff, at key moments parts of the cliff crumble. So my sim includes a static part of the cliff, larger chunks to fall off and small slivers of rock.
the static cliff is a non active bullet object. all the rest of the chunks are active and glue adjesent is used to hold it all together. All objects are packed rbd objects. I am dissolving the glue in the sops constraint network like one of the examples that come with the h13 bullet masterclass video.
On the first frame all the parts of the sim jump down, a small distance and then the sim behaves as you would expect from there.
I set up a super simple example to show it happening. in the example file it moves much less but shows the problem. in my scene it is moving about 5 cm relive to the character.
Bullet sim jumps on first frame if parts glued to static obj
8025 7 1-
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Guess i was wondering why the hell there is a softimage forum reading the posts then added the post, I didn't pay attention when I added the topic.
I tried the gravity on frame 2 trick and went back to the big concrete slab trick.i must have some inter penetration and this force to fix this on the first frame is moving the geometry without the need for gravity. So being attached to a 25 tone slab, and stiiting on another slab fixes that.
I tried the gravity on frame 2 trick and went back to the big concrete slab trick.i must have some inter penetration and this force to fix this on the first frame is moving the geometry without the need for gravity. So being attached to a 25 tone slab, and stiiting on another slab fixes that.
Robert Kelly
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