Hello to everyone
How can I put a halo of light controllable on a moving character.
I did not succeed with the gradient filter.
thank you for your help
Is this going to work for you?

Used 2 Mask:Simple Shape filters. One set to overwrite, second set to subtract. Rotate and Scale to scale the halo. Size and Position to move it.

Thank you Sauron for your answer,
What I’m looking for is to create a halo like a ray of light on a character who moves on a theater scene.
With the simple mask it is not possible because I cannot adjust the intensity of the light and its color and transparency.
I will try to do it with a layer to which I can adjust the color and transparency.
Unless you have a better idea.
Thank you again and have a nice day.