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Challenge 2: Radial Blur

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Quasimondo
Quasimondo

Posts: 147
Filters: 32
As the headline says - try to build a radial blur (radial or circular) with the current toolset. I don't know if it is possible, but it just might - I'm currently thinking in the direction of first using a clever offset, then do a motion blur and afterwards try to revert the previous offset. But I haven't yet found the correct offset maps to achieve this.
Posted: June 4, 2006 6:52 pm   Details E-Mail
uberzev
not lyftzev

Posts: 1890
Filters: 36
We need more info on exactly how offset maps work.
Posted: June 5, 2006 4:04 am   Details E-Mail
onyXMaster
Filter Forge, Inc.
Posts: 350
Color values less than 0.5 (128) shift image to the left (for horizontal) or top (for vertical), more than 0.5 (128) to the right (for horizontal) or bottom (for vertical), while 0.5 leaves the sample at it's original place.

P.S. Explaining that was too easy, maybe you had something else in mind?
Posted: June 7, 2006 2:00 am   Details E-Mail
Lucato
FF addicted

Posts: 505
Filters: 39
Quote
Color values less than 0.5 (128) shift image to the left (for horizontal) or top (for vertical), more than 0.5 (128) to the right (for horizontal) or bottom (for vertical), while 0.5 leaves the sample at it's original place.


Hmmmm....Color values with offset? I didn't get It. How do I get to set the value 128? Where do I aplly It to shift horizontal, vertical as mentioned above.
My blog / Buy my RF images
Posted: June 7, 2006 5:05 am   Details E-Mail

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