[Bf-committers] Change Representation and Initialisation of Matrices to Conform with Standard Notation

Ton Roosendaal ton at blender.org
Fri Dec 9 11:01:07 CET 2011

Hi Andrew,

Can you provide evidence for who is spreading, supporting or enforcing  
this "Standard Notation"?

Apart from that - especially when this standard appears disputable -  
we can much better ensure we are 100% clear about it in docs. Look at  
this wonderful Panda3d page:


I rather see this approach for us!


Ton Roosendaal  Blender Foundation   ton at blender.org    www.blender.org
Blender Institute   Entrepotdok 57A  1018AD Amsterdam   The Netherlands

On 8 Dec, 2011, at 7:05, Andrew Hale wrote:

> Hi All,
> I have written a patch which rectifies a cause of confusion among  
> Blender
> uses when starting out with matrices and vectors. The patch ensures
> consistency between the matrix representation and matrix/vector  
> products so
> that they behave in the way that people familiar with math expect.  
> This is
> achieved by adjusting pythons access to the internal storage, while  
> keeping
> the internal data the same. Note that this does not interfere with how
> matrices are stored internally or how matrix products, additions etc  
> are
> performed internally.
> The patch can be found here:
> http://projects.blender.org/tracker/index.php?func=detail&aid=29534&group_id=9&atid=127along
> with a more in depth explanation.
> Thanks,
> Andrew
> _______________________________________________
> Bf-committers mailing list
> Bf-committers at blender.org
> http://lists.blender.org/mailman/listinfo/bf-committers

More information about the Bf-committers mailing list