Photoshop Algorithms Arcana

3 posts

1. Introduction. The Secret Gradient Interpolation Method

   First article in the Photoshop Algorithms Arcana series. Photoshop 2026 ships with an undocumented gradient interpolation method called Smooth — let's see how it differs from Perceptual, Classic, and Linear.

2. Color Math: Inside Photoshop Gradients

   What you need to know before diving into the math behind gradients. Core concepts, pitfalls, and dragons.

3. Classic: how hard can it be?

   The simplest of Photoshop's gradient interpolation methods: two colors, three channels, no conversions between color spaces. A look at the curve Photoshop draws between stops.