uberzev
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Would be very nice.
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| Posted: June 16, 2006 5:32 am | ||||||
Lucato
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Hmmm??? Would give us some example Uber. I have no idea what is 'Polar Coordinates Distortion'. Doest it distort only on North and South points of the component?
 |
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| Posted: June 16, 2006 5:55 am | ||||||
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onyXMaster
Posts: 350 |
I believe he's talking about converting Cartesian coordinates (X and Y) to Polar ones (Angle and Distance) and back. Certainly not a complex task (and will probably make things like circular gradients a lot easier). Not sure about seamless, but nevertheless it's a good idea worth a try -- I'll discuss that one with Vlad.
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| Posted: June 16, 2006 6:40 am | ||||||
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Vladimir Golovin
Administrator |
"A polar bear is a normal cartesian bear expressed in polar coordinates"
Speaking seriously, the only thing that blocks us from including the polar coordinates is that Filter Forge is currently "all seamless", and to introduce non-seamless components we'll need to redesign the internals, the website and the interface in order to accomodate the concept of non-seamless filters. |
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| Posted: June 16, 2006 8:15 am | ||||||
| IONclad |
LOL... never heard that before... so I'm gunna start calling our brown, black and grizzly bears. Cartesian black, brown and well... cartesian mean for the grizzly.
the artist formerly known as Bongo51 |
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| Posted: June 16, 2006 4:12 pm | ||||||
byRo
 |
Oh, I thought this was a challenge.....
Rô  _________________________________
My favourite question is "Why?". My second favourite is "Why not?" |
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| Posted: June 16, 2006 10:28 pm | ||||||
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byRo
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This builds on work by uberzev and myself - uses radial and angle gradients. Also uses a workaround while the offset doesn't have an "absolute" option by blending in an offset gradient.
There still seem to be some things to adjust but I'm off to BrasÃlia tomorrow and won't have time to fiddle with this. Hope you find it interesting.
Rô Spherify byRo.ffxml _________________________________
My favourite question is "Why?". My second favourite is "Why not?" |
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| Posted: June 16, 2006 10:33 pm | ||||||
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uberzev
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Very interesting and complex byRo. Brilliant work, but I'd still like to have this built in.
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| Posted: June 16, 2006 11:59 pm | ||||||
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byRo
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Yep, so would I. But while we're waiting I submitted the finished filter. Rô  _________________________________
My favourite question is "Why?". My second favourite is "Why not?" |
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| Posted: June 18, 2006 7:55 pm | ||||||
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uberzev
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Well byRo, how about a Polar-to-Cartesian filter, or is that too much to ask?
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| Posted: June 19, 2006 1:36 am | ||||||
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uberzev
|
Also byRo, I suggest you switch to my tiles-to-circles method when generating the horizontal offset map. This is because it is based on a linear curve which produces a more accurate conversion. See here for an example...
http://uberzev.googlepages.com/PolarCoordinates.ffxml |
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| Posted: June 19, 2006 2:20 am | ||||||
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byRo
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Not at all, that's exactly my next project.
Thanks! I will do that as soon as I take it apart and understand exactly how (why) it works. Rô _________________________________
My favourite question is "Why?". My second favourite is "Why not?" |
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| Posted: June 19, 2006 6:11 am | ||||||
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byRo
|
Funny, this is a lot easier than the other way. There's still something wrong somewhere, but it's pretty much done. Rô  _________________________________
My favourite question is "Why?". My second favourite is "Why not?" |
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| Posted: June 19, 2006 11:46 am | ||||||
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byRo
|
This is the filter....
There's still a little problem in there somewhere, when I figure it out I'll submit. Rô Un-Spherify.ffxml _________________________________
My favourite question is "Why?". My second favourite is "Why not?" |
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| Posted: June 19, 2006 11:49 am | ||||||
Quasimondo
 |
Absolutely awesome work Rô!
I couldn't resist to combine the two and make a Radial and Circular Blur out of them - it's not totally perfect yet, but not too bad either: http://incubator.quasimondo.com/filte...Blur.ffxml  |
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| Posted: June 19, 2006 5:32 pm | ||||||
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Quasimondo
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And here's the Circular look:
 |
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| Posted: June 19, 2006 5:34 pm | ||||||
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Quasimondo
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And the spiral:
 |
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| Posted: June 19, 2006 5:34 pm | ||||||
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uberzev
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Gah, that was my idea!
Nice job though. |
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| Posted: June 19, 2006 5:42 pm | ||||||
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Quasimondo
|
Well, since that technique worked already in Photoshop 3.0 the copyright on it has probably expired by now
But as you can see my version of it is not yet perfect - there's the ugly hard edge in the circular and spiral blur and it would be nicer if the mapping continued also in the four corners. |
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| Posted: June 19, 2006 6:22 pm | ||||||
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