Using the curve editor for custom class properties?

Development Programming & Scripting C++
1

Is it possible to use the Curve Editor for properties on my own classes in the editor and inside blueprint?

I made a property of UDistributionFloatUniformCurve and it shows up editable in the editor, but only in that you can hand edit the raw keys. I can’t find a way to allow the designer to edit the values in the more friendly Curve Editor.

1 Like
2

Not sure if bumping is allowed on here, but still trying to figure this one out. Artists are not happy having to build curves with numbers rather than a proper curve editor :slight_smile:

3

Hi,

Create a pointer to a UCurveFloat* in your class, you can then assign a editor curve to it.


UPROPERTY(EditDefaultsOnly, BlueprintReadWrite, Category = Curves)
UCurveFloat* MyCurve;



float Value = 0.0f;

if (MyCurve)
{
   Value = MyCurve->GetFloatValue(InTime);
}
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4

How do you “assign a curve editor to it”? I already have a curve property, and its raw points are exposed and editable in the editor, but no curve editor shows up.

5

You can create a curve asset (under Miscellaneous) which can be edited using the curve editor, then be assigned to a UCurveFloat property as neo says. You are talking about distribution curves in your original post though, which don’t appear to be supported by the curve assets currently. If you need a distribution rather than a simple curve, I think you may need to add this functionality yourself.

6

Ahh ok. Hmm. Seems odd that there is two different methods of making curve based properties, but this gives me something to work with. Thanks!