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Steerable Perlin Noise

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Paper Intermediate

Jacob Rice

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Description

Steerable Perlin Noise presents a SIGGRAPH Talks 2025 note by Jacob Rice of Walt Disney Animation Studios that adds controllable anisotropy to classic Perlin noise while keeping it solid and setup-free.

It motivates steerability from Moana 2 volumetric previs work such as tornadoes and undersea looks. The method applies a user direction through a metric tensor to both gradient projections and an extra anisotropic fade weight, with a 2D algorithm sketch and discussion of metric choices. Results illustrate stronger streaking than projection-only anisotropy and production-style volumetric modeling.

It is for intermediate technical directors and procedural shading engineers who already use Perlin-style solid noise and want directional control without leaving the Perlin family.

The linked resource is a short ACM-style PDF on GitHub (two pages) with figures and pseudocode; companion repo materials are implied by the supplemental notes.

It is useful when you need anisotropic solid noise for volumetrics or vector-field visualization without heavier advection setups. Link last verified accessible on 2026-09-29. Link last verified accessible on 2026-09-28.