Does Unity provide a Vector3 Curve similar to AnimationCurve?

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Hey guys

So far my usage of AnimationCurves has been limited to animating single float values (for example, controlling the alpha of a color over time).

Now I'm in a situation where I want to use animation curves to animate things like the scale of an object:

alt text

As you can see I'm using 1 AnimationCurve for each axis. My question is: am I reinventing the wheel? Does Unity already provide a Vector3 AnimationCurve set?

If Unity does not provide this I would like to move towards making my own Editor classes to present these curves in a nicer way. I have noticed that Shuriken has it's own curve fields:

alt text

Somehow Shuriken is drawing a custom field for the curves, and is also drawing a custom curve editor.

How would I go about drawing curves like this to the inspector? How does shuriken make the extra editor window appear at the bottom of the inspector? How could I write a custom curve editor to show my 3 curves at the same time?

Answer 1

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Answer by VesuvianPrime · Aug 19, 2015 at 02:15 PM

My curves PropertyAttribute:

https://bitbucket.org/thisishydra/hydracommon/src/master/Scripts/PropertyAttributes/Vector3CurvesAttribute.cs

The drawer:

https://bitbucket.org/thisishydra/hydracommon/src/master/Scripts/Editor/Drawers/Vector3CurvesDrawer.cs

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a436t4ataf · Sep 09, 2018 at 04:34 PM 0

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The linked files won't work - they have a tonne of dependencies you need to track down from the project, would be better if you'd linked to the ZIP file to download the whole project perhaps?

Also: you've put a copyright + license on this preventing people from shipping it in their project - this is a nightmare if you ever want to share code, make an asset-store version of your code, etc - so it's not really an appropriate answer to the question (digging in the project, the stated license is currently LGPL, so I guess we could re-write it as an actual library, compile it, package it into a DLL, and then ship it with an asset-store package? But IANAL and this is a rabbit hole :)).

On the plus side, the code looks clean (apart from the long dependency chain).

Answer 2

Answer by wolilio · Sep 29, 2020 at 09:51 AM

you can create a AnimationClip with scale,and then use https://docs.unity3d.com/ScriptReference/AnimationClip.SampleAnimation.html to get scale over time

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Does Unity provide a Vector3 Curve similar to AnimationCurve?

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