[cairo] [patch] enable projective transformations

Arjen Nienhuis a.g.nienhuis at gmail.com
Tue Aug 17 04:39:02 PDT 2010

On Tue, Aug 17, 2010 at 1:32 PM, Maarten Bosmans <mkbosmans at gmail.com> wrote:
> 2010/8/17 Arjen Nienhuis <a.g.nienhuis at gmail.com>:
>> I'm saying:
>> I have this use case. I think it needs rotate_y and translate_z. I
>> think it needs 4x3 transforms.
> How is translate_z different from uniform scaling in the context of
> cairo's operations?
> I'm not sure I can follow you.

If there is a matrix transform the z-axis might point in a different
direction. In this use case the buttons will be translated on the
x-axis for w2 because w2 is slightly rotated along the y-axis.

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