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Bug 1625 - Implement fast 3D orthonormal basis from a single vector
Summary: Implement fast 3D orthonormal basis from a single vector
Status: CONFIRMED
Alias: None
Product: Eigen
Classification: Unclassified
Component: Geometry (show other bugs)
Version: unspecified
Hardware: All All
: Normal Feature Request
Assignee: Nobody
URL:
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Keywords:
Depends on:
Blocks:
 
Reported: 2018-11-19 09:42 UTC by Gael Guennebaud
Modified: 2019-12-04 18:08 UTC (History)
4 users (show)


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Description Gael Guennebaud 2018-11-19 09:42:01 UTC 
A faster complement to:

u1 = ...
u2 = u1.unitOrthogonal();
u3 = u1.cross(u2);

following this paper: http://jcgt.org/published/0006/01/01/
Comment 1 Christoph Hertzberg 2018-11-20 15:37:06 UTC 
Sure, why not. 
Any suggestion for naming that function? And should it be a free function or a static member of some class?
And is there an algorithm to efficiently calculate a corresponding Quaternion as well?

Somewhat related is Bug 17 (creation of a lookAt transformation) -- at least I would look for both functions in the same module.
Comment 2 Nobody 2019-12-04 18:08:21 UTC 
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