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Halftone print screens: CMYK, comic dots, newsprint, duotone

In your harnessProcedural textureMIT

Generate tileable maps of printed halftone: a procedural design separated into inks and screened as round dots on rotated whole-number lattices at classic angles, with misregistration, dot gain and fibrous aged paper. Use for comic and pop-art surfaces, posters, newspapers, packaging and print-themed backgrounds.

Render of Halftone print screens: CMYK, comic dots, newsprint, duotone
The render its check recorded in Godot 4.7.2, 256 by 256 pixels.

What it takes and gives

Entry point
generate
Maps
albedo, normal, roughness, height, ao
Parameters
lines, design_scale, misregister, dot_gain, yellowing, fibres, hue_shift, saturation and 1 more
Presets
default, comic_dots, newsprint_mono, riso_duotone
Tileable
yes
Command line
python halftone_print.py --size 1024 --seed 7 --preset NAME --out DIR [--width W --height H] [--set NAME=VALUE] [--directx-normal] [--orm]
Godot material
material.tres
Blender builder
blender_material.build_material(folder)

Limits. Amplitude-modulated round dots only: no stochastic, line or elliptical screens. Screen angles are rounded to whole-number lattice vectors so the screen repeats, which moves them by up to a few degrees from the nominal angle at low line counts. The separation is a simple grey-component replacement without colour management or ink limits, inks multiply as ideal transparent filters, and dot gain is a curve rather than ink spreading. The printed design is procedural noise, not artwork. Fine screens alias below about four pixels per dot row.

Details

Kind
Procedural texture
Engine
Python 3.10 or later
Files
12 files, 279.4 KB
Licence
MIT
Declared effects
runs commands, writes files
Checked with
Godot 4.7.2, gl_compatibility
Checks
command line generates declared maps, maps decode, maps have declared size and channels, maps tile without a seam, normal vectors unit length facing out, maps carry detail, godot imports the maps, godot material template loads every map, godot compatibility render, capture shows the textured surface, blender builds the material
Techniques
Amplitude-modulated halftoning with a round-dot spot function, Screen lattices from whole-number vectors for exact tiling, Classic screen angles: cyan 15, magenta 75, yellow 0, black 45 degrees, CMY separation with grey component replacement, Subtractive ink mixing by multiplication, Isoline distance for comic outlines, Anisotropic fractional Brownian motion for paper fibres
Tags
texture, pbr, tileable, halftone, print, comic, cmyk, paper
Identity
library.supply.creative_originals.1ef6ce929a00c75f6682deb8.96010019b1288917
Version
96010019b12889173ca90f8367ef22e153726020691de81cc908e1e2184d9c87

The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.

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