Setting up a Digital Scalpel Pattern

Tutorials September 06. 2018

Once again there is the obvious method of applying a “digital scalpel” over painted lines, using the Eraser, except that using the Eraser tool to get this lighter effect takes a very long time. To speed up the process, one can set up a Scalpel Pattern and apply it over the inked lines the same way as he/she would do when modeling or drawing plaster. Although it acts like an eraser, we use a pattern based on white brush lines to accomplish our task:

Setting up a Digital Scalpel Pattern

Setting up a Digital Scalpel Pattern
Setting up a Digital Scalpel Pattern

(1)In a similar fashion to setting up all the previous patterns, open a new canvas, set the Resolution to 1200dpi, with Color Mode to grayscale.

Setting up a Digital Scalpel Pattern
Setting up a Digital Scalpel Pattern

(2)Draw a few Brush Strokes with the same orientation as your scalpel would have. Add some variety in length.

Setting up a Digital Scalpel Pattern
Setting up a Digital Scalpel Pattern

(3)Crop the area around your pattern in a way that no significant white space remains and the texture looks homogeneous.

Setting up a Digital Scalpel Pattern
Setting up a Digital Scalpel Pattern

(4)Go to Image/Adjustments/Invert transform your black brush strokes to White. It turns your entire canvas white.

Setting up a Digital Scalpel Pattern
Setting up a Digital Scalpel Pattern

(5)Hit Edit/Define Pattern and set your new pattern up as Scalpel_1. (Try different patterns with slightly tweaked brush work.)

Setting up a Digital Scalpel Pattern
Setting up a Digital Scalpel Pattern

(6)Hover over the Tools Bar and hit right click (secondary click) at the Stamp tool. Choose Pattern Stamp tool.

Setting up a Digital Scalpel Pattern
Setting up a Digital Scalpel Pattern

(7)Pick the Scalpel_1 pattern you want to use. Note that newly set patterns always end up at the bottom of the pattern list.

Setting up a Digital Scalpel Pattern
Setting up a Digital Scalpel Pattern

(8)Go to the Layers Panel, and with the Damage layer active, lock the transparent pixels by hitting the first tab on the Lock Menu.

Setting up a Digital Scalpel Pattern
Setting up a Digital Scalpel Pattern

(9)Make sure Aligned is deactivated on the Tools Panel. Use the pattern by painting separate strokes over the damage.

You can download the short tutorial to learn this skill.

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