This tutorial will show you how to make a procedural halftone effect using Houdini, some maths, and some simple Python.
The dot pattern used in printing to produce graphics is visually appealing. Check out Chetal Gazdar’s latest lesson, which demonstrates how to create this iconic dot-patterned appearance using Python and Side FX Houdini’s procedural features.
In both 2D and 3D tutorials, the halftone effect is a common topic. More resources for producing them may be found online, such as this one from Ben Marriott, which demonstrates how to make a CMYK halftone effect in After Effects, much as you’d see in print.
Daniel Calderón demonstrates how to make a Photomosaic (a picture composed of several pictures) using Cavalry in this video. Finally, Santiago Pereira demonstrates how to use Blender to create a halftone shader with controls.
Create Perspective Halftone With Houdini VX And VOPS
Spheres arranged in space to create the illusion of a halftone image when viewed from the right point with Houdini VX And VOPS
What this illusion combines are two vintage techniques: Halftone rasterization and perspective projection.
Halftone rasterization is the technique of breaking down a greyscale image into discrete dots of various sizes in an effort to create the phantasm of various brightness values when viewed from afar.
Forced perspective Is a way that’s been used as a practical impact in movies like “Close Encounters of The Third Kind” or “The Aviator” to make models appear bigger than they are. It’s been abused all too often to apparently preserve the tower of Pisa as nicely.