Tired of blurry AI textures? I built a mobile tool that uses pure math to scan PBR maps.

Hi Product Hunt community!

I’ve been working on a project called Nack, and I wanted to share it with fellow creators who are struggling with low-quality texture generation.

The Problem: Most modern mobile scanners and generators rely on AI. While it looks cool at first glance, it often "hallucinates" details, creating blurry normal maps and physically incorrect geometry.

The Solution: I decided to go back to the roots. Nack uses a deterministic Shape from Shading (SfS) algorithm. No AI, no cloud servers, 100% offline. It extracts high-frequency details (pores, fabric weaves, stone grains) from a single smartphone photo in just 4-10 seconds.

Key Features:

• Instant: 4 seconds to get a 2K/4K map.

• Private: Everything is processed on your device.

• Accurate: Pure mathematics instead of generative guessing.

• Game-ready: Exports standard Normal and Displacement maps for UE5, Unity, and Blender.

I’m curious to hear your thoughts: In an AI-dominated world, do you still value "deterministic" tools that prioritize physical accuracy over generative speed?

You can check out the demo here: https://rkey.gumroad.com/l/fqfax

Would love to get some feedback from the PH community!