Stereogram make your own3/14/2023 ![]() The perspective rotated automatically for excellent convergence: A copy of a random model was made and moved a little sideways. I recommend to use 3D software for complex forms. Unfortunately the revolved shapes must be tumbled, but otherwise the result is excellent:Ĭomplex 3D forms are difficult to make to converge well manually and 3D in Illustrator is limited to extrusions and revolutions (also known as "Lathe"). Remember to set perspective on in the revolution dialog. If you use revolution, you can get well converging light and perspective most easily by placing two 2D shapes at the same vertical axle and revolving them as a group. Also the light is consistent => The stereo image converges well. If perspective is ON in the extrusion dialog, you get different extrusions and that is needed to make the effect strong. If Illustrator's 3D effect can produce your shape, you can group 2 copies of your 2D shape and extrude them as a group. It's easy to make live adjustments as you watch. The convergence is acceptable altough not excellent, when the ellipses have horizontal gradients and the direction of the cylinder surface gradient is perpendicular with the left edge. The gradients are not especially critical. We unite the bottom ellipses with the rectangles, raise the upper ellipses to front and fill the shapes with gradients: make a copy, flip it horizontally (Object > Transform > Reflect > Vertical)įor me it converges well, no matter there's a bounding box still visible in the reflected copy (This fact will be used later).draw ellipses on top and bottom (they snap exactly if you have smart quides and snap to point ON). ![]()
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