Sketch Mass

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The1st Sketch Mass effect step generates a black sketch on a white background. It uses the current canvas image and replaces it.

Note that the Hatch parameter is set to Rnd Edge Cross Scribble. By adjusting the Hatch parameter you can generate different hatch pattern fills for the mass areas of the sketch. The Mass, Range, and Iter parameters controls how the mass areas for the sketch are generated. By experimenting with those settings you can generate a wide range of different sketch styles.

I used a Smooth option for the EdgeLook, which gives an accurate reproduction of the sketch. Most of the other EdgeLook options will generate artistically stylized versions of the sketch lines.

I set the Finish parameter to On, which boost the contrast of the sketch output a little. By working with different Finish and PostEFX parameter settings you can dramatically change the visual aesthetics of the sketch effect, generating different smear or burn effects.

The Editor control panel settings for the second Sketch Mass action step are shown in the 4th gallery image above. Note that the Hatch parameter was changed to Outline and the edge look is PolySimplify 2 which gives it a straight line look. This setting sketches an outline for the Mass regions as opposed to filling them with a hatching pattern.

Also, I wanted to add the second sketch output into the existing first sketch. Since the Sketch Mass effect generates a black sketch on a white background, I set the Composite parameter to Min (minimum). This overlays the black sketch lines from the second action step into the existing sketch canvas.

One really cool feature of Studio Artist is that compositing controls are directly built into all of the different effects. This lets you do things like we did with the second application of the Sketch Mass effect, where we used Min compositing to overlay on top of an already existing sketch. Other programs would require you to build a second layer to do this kind of compositing, but you can just do it with a single edited image processing effect in Studio Artist.

As we mentioned at the top of the post, we could have used the 2 Sketch Mass ip ops to generate bezier paths, and then painted in the bezier paths with the paint synthesizer if we wanted more visually complex painted sketch lines. Yesterday’s post discussed in detail how to do this.

Categories: Image Ops EFX, Sketch EFX
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