The plugin Projection provides a collection of interactive perspective effects: ability to tile image in infinite space (copy or mirror mode), or to repeat edges ... Bonus: the unusual Bilinear Distortion. The 3D effect can be reached simply by moving the corners of the image (in the preview window). Warning: Each time you perform this kind of operation you should press just after the button . (Otherwise quality of the preview is draft and is not representative of the final output).