Comments on: Understanding Flash displacement map filter

By: zyxstand

zyxstand — Tue, 21 Dec 2010 04:34:31 +0000

I really like this algorithm here! It’s not real rotation, duh, but it’s really cheap (CPU-wise) compared to actual spherical rendering. Also, for my purposes it might be better as this will preserve the orientation (good for text!)
Anyway, the real reason I’m posting is because something on this page is leaking and the memory usage goes up like crazy. 1 GB in a few mins and still growing. I’m curious to find out as to what causes this – maybe this could affect me if i were to use something like this.

Thanks,
zyxstand

By: Inder

Inder — Thu, 05 Aug 2010 16:08:56 +0000

Thanks for excellent explanation,
I was always keep on ignoring this filter. But recently I got an proposal to make webcam effects. So I used your concept in order to implement it on Webcam. here is it

http://inderprojects.com/projects/cameffects3/

though it is very basic yet .. I am going to make more effects using DisplacementMap.

Thanks for greatly explanation

By: Dave Noel

Dave Noel — Thu, 04 Feb 2010 22:50:31 +0000

You might want to try fading the center of the displacement map to white, this over exaggerates the displacement on the edges and makes it look way more spherical.

I’m working on a 3D faked globe in much the same way you’ve rendered the wood ball. The trick is in a harder color transition from the center to the edges of the displacement mask.

By: Phil

Phil — Fri, 30 Oct 2009 10:57:52 +0000

Awesome, im trying to write my own version that will work with GD/PHP :)

By: displacementmapfilter tester - sevenson.com.au

displacementmapfilter tester - sevenson.com.au — Sun, 11 Oct 2009 05:14:14 +0000

[...] out that that can do a better job than me. One in particular that I found quite helpful was this article written by Emanuele Feronato. Most of it is written in AS2, but the concepts are still the same. [...]

By: Understanding Flash displacement map filter : Emanuele Feronato « Dobos Bence

Fri, 09 Oct 2009 09:29:04 +0000

[...] Posted by dobosbence in Uncategorized. Tagged: Flash. Leave a Comment Article [...]

By: Pure AS3 magnifying effect using Displacement Map Filter : Emanuele Feronato

Pure AS3 magnifying effect using Displacement Map Filter : Emanuele Feronato — Wed, 12 Aug 2009 09:58:38 +0000

[...] You can find all information about the displacement filter and the meaning of that gradient sphere on a grey background at Understanding Flash displacement map filter. [...]

By: SumYungGai

SumYungGai — Tue, 14 Jul 2009 04:30:47 +0000

I had no idea how this worked and Adobe’s explanations are crap…but this was perfect.

I used this tutorial and after a few minutes screwing around on Flash, I was able to grasp the general idea and then some.

By: George

George — Mon, 13 Jul 2009 15:27:14 +0000

very nice tutorial, I would suggest a different texture on your last example as it looks like it doesn’t scroll up and down.

i would also suggest showing the result of each component separately (eg: just x and just y) so we can better understand how the illusion of the magnifying glass works

By: Philip Thonbo

Philip Thonbo — Thu, 21 May 2009 13:56:08 +0000

i did this some years ago

http://www.thonbo.com/tempShowCase/sphear3.html

http://www.thonbo.com/roller_test_mc2.html

http://www.thonbo.com/tempShowCase/lensLab.html