# Swirly Bokeh! **URL:** \ **Category:** Matchbox\ **Created:** [October 12, 2025, 11:54pm UTC](https://forum.logik.tv/t/swirly-bokeh/13629 "2025-10-12T23:54:31Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Ashby](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/ashby/32/164_2.png) [@Ashby](https://forum.logik.tv/u/Ashby)\ **Post date:** [October 12, 2025, 11:54pm UTC](https://forum.logik.tv/t/swirly-bokeh/13629/1 "2025-10-12T23:54:31Z")
Hi All, Miserable New York weather outside can mean only one thing, getting nerdy with some coding! Been meaning to make something like this for a while, it’s a plugin that emulates that rotation bokeh that you see in vintage lenses such as the Petzval, as seen on movies like The Batman, Dune and Poor Things. Enjoy!! J. Original Image: ![afx_swirl_bokeh.001](https://us1.discourse-cdn.com/flex020/uploads/thedepartmentofexternalservices/original/2X/6/6aca59d8293da82cf4f3c2b60cd398f0cd026147.jpeg) Blur Amount 10: ![afx_swirl_bokeh.002](https://us1.discourse-cdn.com/flex020/uploads/thedepartmentofexternalservices/original/2X/2/2e6fd6b8f90abcd96c4026009dfcc127184c8f24.jpeg) Blur Amount 20: ![afx_swirl_bokeh.003](https://us1.discourse-cdn.com/flex020/uploads/thedepartmentofexternalservices/original/2X/9/9ec9c806502c7fa30b0a3621db0d46a2f2a25cb6.jpeg) Blur Amount 40: ![afx_swirl_bokeh.004](https://us1.discourse-cdn.com/flex020/uploads/thedepartmentofexternalservices/original/2X/3/35bc39865b55c1247e7c2a2ea5b47aadd5624beb.jpeg) > **[Shader: AFX\_SwirlBokeh](https://logik-matchbook.org/shader/AFX_SwirlBokeh)** > > Bring out your inner Greg Fraser with this plugin that recreates the classic swirl bokeh made popular by vintage lenses such as the Petzval series. > > WARNING: High values will be very demanding on your GPU. > > Made by John Ashby ---
**Author:** ![feganflamer](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/feganflamer/32/10787_2.png) [@feganflamer](https://forum.logik.tv/u/feganflamer)\ **Post date:** [October 13, 2025, 12:21am UTC](https://forum.logik.tv/t/swirly-bokeh/13629/2 "2025-10-13T00:21:16Z")
That’s awesome thanks dude! ---
**Author:** ![netefreeman](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/netefreeman/32/9772_2.png) [@netefreeman](https://forum.logik.tv/u/netefreeman)\ **Post date:** [October 14, 2025, 5:33pm UTC](https://forum.logik.tv/t/swirly-bokeh/13629/3 "2025-10-14T17:33:25Z")
I posted and created a thread a while ago as I was trying to achieve this very similar effect. This is super handy. Looking forward to testing this out! Thanks so much for the contribution! ---
**Author:** ![Ashby](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/ashby/32/164_2.png) [@Ashby](https://forum.logik.tv/u/Ashby)\ **Post date:** [October 15, 2025, 4:35pm UTC](https://forum.logik.tv/t/swirly-bokeh/13629/4 "2025-10-15T16:35:10Z")
Shader update v1.1 now added a “cat’s eye” look to the bokeh. Blur Amount = 40, Cat’s Eye = 0 ![afx_swirl_bokeh_cat's_eye_0](https://us1.discourse-cdn.com/flex020/uploads/thedepartmentofexternalservices/original/2X/c/cf946b9b7c21698ba742d99dc1a5fec63ad044ad.jpeg) Blur Amount = 40, Cat’s Eye = 0.8 ![afx_swirl_bokeh_cat's_eye_80](https://us1.discourse-cdn.com/flex020/uploads/thedepartmentofexternalservices/original/2X/9/9912f9b8134b6b66a6031f6b3efe4dc7e874bfe9.jpeg) > **[Shader: AFX\_SwirlBokeh](https://logik-matchbook.org/shader/AFX_SwirlBokeh)** > > Bring out your inner Greig Fraser with this plugin that recreates the classic swirl bokeh made popular by vintage lenses such as the Petzval series. > > WARNING: High values will be very demanding on your GPU. > > Made by John Ashby ---
**Author:** ![Ashby](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/ashby/32/164_2.png) [@Ashby](https://forum.logik.tv/u/Ashby)\ **Post date:** [October 18, 2025, 11:19pm UTC](https://forum.logik.tv/t/swirly-bokeh/13629/5 "2025-10-18T23:19:51Z")
some more updates. Now added lens breathing (independent X and Y) and a more pronounced catseye effect with kernal edge flattening option. cats\_eye = 0.8 edge\_flatten = 0 cats\_eye = 0.8 edge\_flatten = 1 cats\_eye = 0 edge\_flatten = 0 cats\_eye = 0 edge\_flatten = 1 > **[Shader: AFX\_SwirlBokeh](https://logik-matchbook.org/shader/AFX_SwirlBokeh)** > > Bring out your inner Greig Fraser with this plugin that recreates the classic swirl bokeh made popular by vintage lenses such as the Petzval series. > > WARNING: High values will be very demanding on your GPU. > > Made by John Ashby ---
**Author:** ![GPM](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/gpm/32/4224_2.png) [@GPM](https://forum.logik.tv/u/GPM)\ **Post date:** [October 19, 2025, 4:51pm UTC](https://forum.logik.tv/t/swirly-bokeh/13629/6 "2025-10-19T16:51:55Z")
Man, that looks so nice. Thank you.