[cairo] 4x4 matrices in Cairo
psychon at znc.in
Thu Nov 14 12:27:05 PST 2013
On 13.11.2013 14:15, AD wrote:
> Hey guys,
> Is there a way to use 4x4 matrices in cairo?
No. Cairo has to be able to invert the transformation that it uses and
projective transformations aren't always invertible. AFAIK / AFAIR.
> Or alternatively a may to decompose a 4x4 matrix into several 3x3 matrices?
Nope. I guess you will have to implement this part yourself. You could generate
the untransformed image with cairo and then apply the transformation "by hand".
> I'm trying to distort an image as in pic attached.
"Why make things difficult, when it is possible to make them cryptic
and totally illogical, with just a little bit more effort?" -- A. P. J.
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