Hello.
I just started using Affinity (never used any photo editing before) and I am fixating on something I want to do.
I want to use an asset on only one part of a picture as shown on the picture attached. If we take this example, It means the mountains would stay the same but the river would be a different "texture" (sorry for the vocabulary). I've no idea how to do that. Sorry if this question's already been asked but if someone could refer me to a tutorial/video etc that'd be awesome.
Thank you.
