[ODE] Quickstep and patents

Wed Jun 6 21:20:48 MST 2007

This patent covers ODE quickstep. Quickstep implements a variant of 
Gauss-Seidel (SOR). 

This is not about hardware, it is about software.
Just cross your fingers and hope on some prior art, or that Ageia doesn't 
pursue this.
Erwin 

Beau Albiston writes: 

> I believe they are referring to LCP solvers in the context of being 
> implemented on dedicated hardware. 
> 
> -Beau 
> 
> metanet software wrote:
>> hi,
>> I'm working on a physics solver, and have recently discovered that 
>> several well-known techniques are in fact patented. I'm eager to 
>> opensource my project, however doing so will make it obvious what 
>> methods i'm using, and one of them is definitely patented. 
>>
>> From discussion on the Bullet forums, it appears that Ageia holds a 
>> patent related to ODE's quickstep solver: 
>> http://www.patentstorm.us/patents/7079145-claims.html 
>>
>> Has there been any trouble with these patents and ODE? I'm thinking 
>> specifically about the various big-budget commercial games released 
>> with ODE.. did Ageia extract any sort of licensing/blackmail fees from 
>> the developers? 
>>
>> I'm just trying to get a sense of whether Ageia actually enforces 
>> these ridiculous patents or they're just there to make them look good 
>> in stockholders' eyes. 
>>
>> thanks,
>> raigan 
>>
>>
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