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How can I deform 3D Mask? (Flare out, Taper in)


Is it possible to deform a 3D Mask in such a way that it flares out or tapers in? I'm specifically trying to do that with a cylinder mask, which was created using Signed Distance Functions.

alt text alt text

It can change its position, height, diameter, and rotation... but I can't figure out how to achieve the gradual tapering out effect. Here is a gif to illustrate what I'm going for:

alt text

I would appreciate any help!


Product Version: UE 4.20
cylinder2.jpg (32.9 kB)
conemask.gif (1.0 MB)
cylinder1.jpg (159.0 kB)
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asked Aug 16 '18 at 07:41 PM in Rendering

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answered Aug 17 '18 at 04:14 AM

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avatar image Unrhyme Aug 17 '18 at 09:03 AM


I had already attempted to create the capped cone but it didn't work for some reason. I'm not sure what I'm doing wrong.alt textalt text alt text

As you can see it's a complete mess.

I've read others were having trouble with getting the capped cone to work as well.

cone6.jpg (547.1 kB)
cone3.jpg (43.7 kB)
avatar image redbox Aug 17 '18 at 12:11 PM

I get a little different results but yeah, formula from publication is not accurate.

avatar image Unrhyme Aug 17 '18 at 12:20 PM

Wouldn't it be possible to use some kind of gradient to change the diameter of a cylinder along the height?

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