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12/5/2010 - Havok Ragdoll Physics Videos

 
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dgreen
The One


Joined: 24 Sep 2005
Posts: 6811
Location: Raleigh, NC

PostPosted: Sun Dec 05, 2010 10:46 pm    Post subject: 12/5/2010 - Havok Ragdoll Physics Videos Reply with quote

Hey Guys,

Here are some videos of the Havok ragdoll physics I've coded into the game in the last week or so.

Gravity is still a work in progress - I think it needs to be increased. I'll take care of that. Other parts of the engine have recently received a refactor / facelift so some things are rough around the egdes.

I've tried for a few years to get some good looking ragdolls - up until this point I think the best ragdolls I've had were in my game 'Gang War' using Newton Dynamics physics engine circa 2006. The recently written ragdoll code is replacing some Havok based ragdolls - but they didn't properly blend the current animation state of the visual model with the physics representation for a smooth transition. I also use triangluar shapes for the rigid body representation of each limb - the shapes are defined via 3D model so it's easy to tweak the ragdolls.



This new system supports up to 32 dynamic ragdolls at once - with no more than 1024 units on the battlefield this should be sufficient ( since ragdolls are a client side effect that doesn't affect the gameplay / character controllers / etc ). I'm pretty happy with how they turned out - though the effects will be much more realistic once I go through and add pre-limb bullet detection and apply an impulse to the limb in question. Another feature of this new ragdoll code is ability for breakable limbs - simply not creating a constraint will detach the limb from the ragdoll with no other changes needed.

Video links:
Video #1 -http://www.youtube.com/watch?v=s6vAv1idqZg

Video #2 -http://www.youtube.com/watch?v=pa-ETP-LaXo

Video #3 - http://www.youtube.com/watch?v=xx_-0x-m4Jw

Here are the screenshots:



- Dan
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rappen
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Joined: 22 Apr 2007
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Location: Spijkenisse, Netherlands

PostPosted: Tue Dec 07, 2010 2:13 pm    Post subject: Reply with quote

hehe looks like fun, Is it also like you shoot somebody in the head it will bounce away?
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dgreen
The One


Joined: 24 Sep 2005
Posts: 6811
Location: Raleigh, NC

PostPosted: Tue Dec 07, 2010 3:27 pm    Post subject: Reply with quote

rappen wrote:
hehe looks like fun, Is it also like you shoot somebody in the head it will bounce away?


I could make that happen Cool
_________________
I run this place.
"Some muckety-muck architecture magazine was interviewing Will Wright about SimCity, and they asked
him a question something like "which ontological urban paridigm most influenced your design of the simulator,
the Exo-Hamiltonian Pattern Language Movement, or the Intra-Urban Deconstructionist Sub-Culture Hypothesis?"
He replied, "I just kind of optimized for game play."

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rappen
Mini-Me


Joined: 22 Apr 2007
Posts: 6633
Location: Spijkenisse, Netherlands

PostPosted: Tue Dec 07, 2010 4:05 pm    Post subject: Reply with quote

dgreen wrote:
rappen wrote:
hehe looks like fun, Is it also like you shoot somebody in the head it will bounce away?


I could make that happen Cool


Awesome Very Happy


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