Perspective transform revisited

[Ottia Tuota]

Thanks to you both. Nice animation. I never thought that the plugins could be used that way.

But the real thanks go to whoever it was who wrote to Gimp that excellent internal procedure 'gimp_item_transform_matrix'. It makes it possible to do any projective transformations, and to make such plugins, what is left is to write interfaces (which necessarily involves solving some nice mathematical problems). If only there were something similar for more general transformations, not only projective...!