I have an image that I want to turn into a button. I want to draw a rounded rectangle on top of the image. I want to then be able to see the image inside the button, and outside of the button, I want transparent pixels.
I just can't seem to figure out how to create a mask that can turn transparent what is behind parts of it, and show through the rest.
I have a feeling that this is incredibly simple to do, if you happen to be a regular Photoshop user.
Can someone please enlighten me? Thanks!
You cannot "fill" an area with transparent pixels if you have several other layers below it. What you could do is merge the layers you need in a new layer on top and hide all the layers below that one. Then use the mask to hide the section of the layer you want transparent.
In short:
1. Apply Image in a new layer (or merge to new layer)
2. Hide all the other layers below the top one
3. Add mask, hide the section you want transparent
To add a mask, select the right layer and draw a selection. Then go to Layer > Layer Mask > Reveal Selection.
This will hide the parts of the layer that are not selected.
Sounds like you just want to invert the mask. Ctrl+I in pretty much any Windows photo app, so presumably Applekey (command?)+I in OSX.
