Forums > Jitter

jit.scissors vs. jit.submatrix


MIB
March 14, 2008 | 3:18 am

Does anyone know offhand about performance differences between jit.scissors and jit.submatrix??
Right now I am trying Jit.scissors (@rows 5 @columns 5), using only the output of row 1 at columns 1,3,5 at a resolution of 640×480. Since I am not using the other 22 outlets, I was wondering if it might be cheaper to use 3 jit.submatrix objects (@dim 128 96 @offset 0 0 – for the first subregion)???
Thanks a bunch.


March 14, 2008 | 3:36 am

i believe the same algorithm is used for both objects. non-connected
scissors outlets are ignored.

On Mar 13, 2008, at 11:18 PM, Martin wrote:

>
> Does anyone know offhand about performance differences between
> jit.scissors and jit.submatrix??
> Right now I am trying Jit.scissors (@rows 5 @columns 5), using only
> the output of row 1 at columns 1,3,5 at a resolution of 640×480.
> Since I am not using the other 22 outlets, I was wondering if it
> might be cheaper to use 3 jit.submatrix objects (@dim 128 96 @offset
> 0 0 – for the first subregion)???
> Thanks a bunch.



MIB
March 14, 2008 | 3:46 am

Excellent.
Thanks a lot.


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