Behind the Cover — Scientific American “See-Through Brain

How do you illustrate a revolutionary neuroscience technique for one of the world’s most prestigious science publications?

Here’s the full process behind my cover illustration for Scientific American’s special issue titled “See-Through Brain — A New Look at How We’re Wired to Think”, covering Karl Deisseroth’s groundbreaking CLARITY method — a technique that makes brain tissue literally transparent, revealing its neural architecture.

The Brief Show a human brain transitioning from transparent (revealing internal neural connections) to opaque — scientifically credible, yet visually striking enough for a magazine cover.

The Process

Step 1 — Anatomy first (Modo) Everything starts with accuracy. I built a detailed, anatomically correct brain model in Modo, including all internal structures — because the transparency effect only works if what’s beneath the surface is real.

Step 2 — Sculpting (ZBrush) The model was brought into ZBrush to sculpt surface details and make the brain more visually appealing — adding the organic complexity that makes it feel alive.

Step 3 — Assembly & neural fibers (Modo) Back in Modo, all parts were assembled and checked together. Millions of neuron connections were then simulated using Modo’s hair/spline system — more artistic interpretation than strict anatomical accuracy, but visually conveying exactly what the CLARITY method reveals: the brain’s hidden wiring.

Step 4 — Compositing (Photoshop) All render passes were assembled using masks to control the transparency gradient — solid cortex on one side, dissolving into glowing neural chaos on the other.

The illustration was published across multiple international editions of Scientific American — including the Spanish (Investigación y Ciencia), Russian (В мире науки), Hebrew, Polish (Świat Nauki), Chinese, and English editions, among others.

The result ended up on the cover of Scientific American worldwide.

Tools: Modo · ZBrush · Photoshop

Art Director : Michael Mrak
Client : Scientific American
Agent : Richard Solomon Artists Representative

Maciej Frołow

3D illustrator and animator based in Aix-en-Provence, France. Specializing in medical, scientific and technical visualization for advertising, editorial and scientific publishing. 30 years of experience working with international clients including Scientific American, The Washington Post, The Wall Street Journal, Nike, Dior and Sony. maciejfrolow.com