Illustrator question - adding a transparent texture to an image.
I have an image which has white and transparent parts. I want to apply a texture to it where the texture is transparent. If i was to print this image on red paper, i would want the red to come through where the texture is.
My brother had showed me how to do this in photoshop, but have forgotten a step or something and won't be able to get any answers until tomorrow at the earliest so i was trying to find an answer where i can do this in illustrator since that is where the file was originally created and is what i am more familiar with.
Is this possible in Illustrator? I've looked up may videos on this, several pages, and they seem to be about applying a colored texture to a file. I've tried things like the subtract in pathfinder, but that doesn't work.
Worst case scenario, i guess i'll just have to ask my brother again and record what i am doing so i know how to do it in the future but if anyone has any suggestions i would love to hear them.
I've attached a file to give you an example of what i am working with. Imagine the blue parts are transparent and you want to apply a transparent texture to everything that is white.