Roughness map generator — free, online, from images

Build believable micro-surface response for metal/rough PBR directly from your source image—with instant 3D preview and engine-ready PNG export.

Free · No signup for core use · 3D preview · Browser-based · Unity, Unreal, Blender & Roblox

GenPBR is a free roughness map generator that creates PBR roughness maps from images in your browser. Upload on /generate, tune roughness intensity with live 3D preview, and export alongside normal map generator, metallic map generator, and height map generator outputs for a coherent material.

Image to roughness map workflow

If you searched “image to roughness map” or “roughness texture generator,” start with a locked albedo plate, generate roughness, then validate grazing-angle response in the 3D viewer—not just the 2D thumbnail. For the full stack, use image to PBR or the texture map generator hub.

Workflow tips

  • Lock your albedo first, then tune roughness—large albedo swings can change perceived gloss.
  • Use the 3D preview to judge grazing-angle response, not just the 2D thumbnail.
  • When batching assets, keep naming consistent so engines import roughness channels reliably.

Upgrade when volume grows

Core roughness generation is free with no watermarks. For 4K exports and bulk batches, create a free account or review pricing.

Frequently asked questions