Red ochre Posted December 6, 2011 Share Posted December 6, 2011 Squirklewarp This tool will distort the current layer in a 'squirkular' shape. In other words anything from a diamond through circle/ellipse to a rounded rectangular form. It is useful for producing glass type objects, buttons and warping text layers. It is in my updated Red ochre plugin pack I have changed the default shape to circular as this is the one I use most. All feedback appreciated. Here's what it can do:- Notes on use: I assume that position, angle, wide... tall and size are self explanatory. shape exponent: this changes the shape from a diamond through circle/ellipse and 'squirkle' to a rectangle with rounded corners. To see what you are doing it may be worth pushing the shading slider up to maximum (with shading pattern left at default), and then change the shape slider to see the range of shapes. The default shape exponent is 2.5 (a squirkle) - you may find an exponent of 2 (a circle) is most useful for standard bubble, lens and sphere effects. magnification: the distortion (all types) is based on the the distance from the centre of the shape, this is then multiplied by the magnification. Hence if the magnification is zero, there will be no distortion. If the magnification is close to zero, it will be subtle and if large it will try to reference outside of the original image. This will result in 'holes' or bits missing from the shape unless the repeat type is set to 'reflect repeat' or 'fly's eye'. curvature: the distance from the centre divided by the maximum radius is converted into an angle. A trigonometrical function is then applied to this angle to achieve the distortion. Curvature multiplies that angle. What this really means is that a small curvature could be compared to a shallow disc (if semi-squirkular) or shallow pyramid (if pyramid) and a large curvature will produce a more curved surface. If using the rings or ripples curve types, increased curvature will produce more rings or ripples. Magnification and curvature work together to produce the distortion. When the edge is not locked - think of the effect as a lens in front of the source image. The magnification is the distance of the lens from the paper, curvature is the curvature of the lens. If the 'lock edge' control is ticked, then it is more like stretching the source image over a domed shape. Sorry - so difficult to explain! I would recommend using the effect on a grid or simple photo and adjusting these two controls until you get a feel for how they work. curve type: It is almost impossible to give descriptive names to previously unseen distortions! Some are subtly different, some are bizarre - try them all! - and see the difference when 'lock to edge' is unlocked/locked. If holes appear, because the distortion is extreme or the shape is near to the edge of the image then try using the 'repeat type' button, to fill the holes. lock edge to background: when ticked (the default), this reduces the distortion at the edge. This gives the appearance of the surface of the image bulging. When unchecked the effect behaves more like a lens. Unchecked is better for more extreme effects, the compound (fly's) eye type effect for example. shading: this determines the amount of shading from the primary color. Since this is normally black it will shade the squirkle to give a 3D effect. I've found that for bubbles a white primary color works well, and selecting a more vibrant colour can give good coloured glass results. It is also really useful to see the edge of the shape, even if it is turned down before rendering. shading pattern: for each curve type I have devised a pattern of shading that I feel works. However, this list gives the ability to try different patterns. I recommend trying the grid pattern, as it gives some clue as to what the distortion is doing. Generally the first ones shade according to the position within the squirkle, the latter shade the source image. I recommend using the 'butterfly' shading with the 'butterfly' distortion (I could not set that as the relevant default type within the program). background transparent: this will make the area outside of the squirkle transparent. I tend to duplicate the original layer then produce the squirkle on the top layer with a transparent background - this gives more opportunities to adjust the image. Add a shadow, blur the source image or add more shading to the squirkle, for instance. I have also found interesting results from running the effect again on the object layer. repeat type: with the default of 'none' the distortion will stop when the edges of the source image are reached. This can create some interesting shapes, especially if used on an object layer. If however you want to make a 'bubble' , then the 'reflect repeat' will be best as it will give the appearance of a seamless join to the filled area. The 'fly's eye' option simply repeats the original image - so if there is a gradient on this then the joints between the repeats will be very noticeable. Known issues: Although the outside of the squirkle is smoothed, edges within the squirkle - at the source image edges where 'holes' appear, or between the 'old rings' are not smoothed. If this is a problem I would suggest ticking the transparent background button and subsequently using the 'feather' plugin on the object layer produced. Also, the averaging method I've used only averages the nearest 4 pixels, so when the distortion references widely spaced pixels the appearance is not perfect. If I corrected this the effect would take an age to run, I don't think the loss of quality is that great as this only really applies to extreme distortions where the eye is not examining closely. Here are some screenshots showing the effect UI, which may explain better http://i1127.photobu...ples/holes1.jpg http://i1127.photobucket.com/albums/l621/Red_ochre/squirklewarp%20examples/holes2filled.jpg http://i1127.photobu...ingsquirkle.jpg http://i1127.photobu...ingsdiamond.jpg http://i1127.photobu...lyeyelowexp.jpg http://i1127.photobu...ples/flyeye.jpg http://i1127.photobu...flectrepeat.jpg http://i1127.photobu...mondshading.jpg http://i1127.photobu...utterflyeye.jpg http://i1127.photobu...terflyweave.jpg http://i1127.photobu...ainbowweave.jpg http://i1127.photobu...eavepattern.jpg http://i1127.photobu...s/weavegrid.jpg http://i1127.photobu.../urchinwarp.jpg http://i1127.photobu...les/bubbles.jpg http://i1127.photobu...quarebubble.jpg http://i1127.photobu...les/ripples.jpg 2 1 Quote Red ochre Plugin pack.............. Diabolical Drawings ................Real Paintings Link to comment Share on other sites More sharing options...
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