hello everyone, i have encountered a problem with a task that I cannot undestand how to decide- tried searching similair requests but to no satisfying resolution. if anyone knows how to do this please share, I would much appreciate it.
The artwork is by an unknown artist, I do not own it. It is here merely for visual exmple of what I amtrying to achieve, which is black&white colour inversion in the overlapping shapes and figures...
This is a destructive approach:
If there are strokes in your artwork, outline them. Then select all and make a compound path. Select the "Even odd" fill rule in the attributes panel.
It can also be made non-destructive.
Draw all the shapes. If a shape should have just a stroke or even is an open path, then apply Effect > Path> Outline stroke
Then group everything (also the background rectangle)
Apply Effect > Pathfinder > Exclude
Create a layer and fill it with a black object.
Create a layer above it for your artwork.
Make a shape with a white fill and stroke.
In the Appearance panel click the arrow for the fill and stroke and set the opacity blend mode to Difference.
Create a Graphic Style with this object selected.
Make sure that New Art Has Basic Appearance is unchecked in the Appearance panel menu.
Start drawing with the Graphic style active.
Tom -- that works if your docuemnt mode space is RGB. For it to work in CMYK mode, the background box has to be set to Registration - which is no good if the piece will be printed.
Yes, for printing on a press you need some more steps:
Edit > Edit Colors > Convert to Grayscale
File > Document Color Mode > CMYK
(which can be made into an action)