Why does my procedural noise band visibly?

Simple Noise uses lower precision and aliases. Switch to Gradient Noise. For higher fidelity, multiply UV by larger scale and feed through Voronoi or fractal stack.

FBM (fractal Brownian motion)?

Stack 4-6 Gradient Noise nodes at increasing frequencies (2x, 4x, 8x...), summed with halving amplitude. Yields organic-looking noise.

Sample noise once for offset, add to UV, sample again. Distorts the pattern; eliminates lattice-aligned banding.

Fix: Shader Graph Procedural Noise Bands

Quick answer: Use Gradient Noise over Simple Noise. Stack at multiple frequencies for FBM. Add domain warp for organic look.

Material noise produces visible square bands. Simple Noise alias. Gradient Noise is higher quality.

The Fix

Shader Graph:
  UV * 4 → Gradient Noise → (output1, scale 1)
  UV * 8 → Gradient Noise → (output2, scale 0.5)
  UV * 16 → Gradient Noise → (output3, scale 0.25)
  Sum → FBM noise

  // Domain warp
  Add (FBM * 0.1) to UV before final sample

Multi-octave summing breaks lattice; domain warp adds organic disturbance.

Verifying

Bands gone; smooth organic noise. Texture-based noise via 3D RGBA texture is similar quality, possibly cheaper.

“Gradient. Stack. Warp. Smooth.”

Related Issues

For SubGraph property, see SubGraph. For custom mesh stream, see mesh stream.

Gradient over Simple. Stack.