NormalMapAI
Real-time preview in the curvature map generator
Watch every slider adjustment update immediately on the canvas or 3D preview inside this curvature map generator before you download via this curvature map generator.
Free · Local processing · No sign-up
Free Curvature Map Generator Online
Use the NormalMapAI curvature map generator to compute second-derivative surface inflection, bright convex ridges and dark concave crevices in your browser.
Live tool on this pageUpload · tune · export — keep working here
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Sample textures: Poly Haven (CC0)
WHAT
What is a curvature map generator?
A curvature map generator converts a surface image into production-ready material data: specifically, our curvature map generator lets you extract convex ridge highlights and concave cavity valleys around a 0.5 neutral gray midpoint for procedural edge wear and dirt masks. NormalMapAI runs this curvature map generator 100% locally in your browser via WebGL2, giving you instant visual feedback and lossless PNG exports without uploading proprietary files inside our browser-based curvature map generator.
Whether you are building materials for Blender Shader Editor, Substance 3D Painter, Unreal Engine 5 and Quixel Mixer, this curvature map generator eliminates slow round-trips to heavy desktop suites. Under the hood, the curvature map generator uses second-derivative Laplacian height inflection and tangent-space normal divergence so every pixel stays mathematically accurate for physically based shaders inside our browser-based curvature map generator.
Unlike single-purpose scripts that output blind files, the NormalMapAI curvature map generator keeps an interactive viewport open while you drag sliders. You can pair this curvature map generator with our seamless texture tool to fix border seams first, or jump straight to the full PBR texture generator when you need a complete multi-channel ZIP inside our browser-based curvature map generator.
Because the curvature map generator executes on your own GPU and CPU, confidential studio scans and client product shots never leave your machine. Open the curvature map generator above, test built-in Poly Haven CC0 samples, and export up to 4096 px with zero sign-up or watermark inside our browser-based curvature map generator.
- Browser-based curvature map generator — extract convex ridge highlights and concave cavity valleys around a 0.5 neutral gray midpoint for procedural edge wear and dirt masks with the curvature map generator.
- Tuned for Blender Shader Editor, Substance 3D Painter, Unreal Engine 5 and Quixel Mixer with the curvature map generator.
- 100% local curvature map generator — zero server uploads or account walls with the curvature map generator.
- Instant preview + handoff to full PBR ZIP packs with the curvature map generator.
- Supports 512 px to 4096 px lossless PNG output with the curvature map generator.
WHY
Why use NormalMapAI as your curvature map generator
Calibrated for modern game engines
Outputs from the curvature map generator follow strict linear/sRGB and channel conventions for Blender Shader Editor, Substance 3D Painter, Unreal Engine 5 and Quixel Mixer via this curvature map generator.
100% client-side privacy
Your textures never upload to a cloud server. This curvature map generator processes pixels locally in browser memory via this curvature map generator.
Connected to the full NormalMapAI suite
Move seamlessly between this tool, the seamless texture maker, transparent PNG cutout tool and full PBR texture generator via this curvature map generator.
Up to 4K resolution & 16-bit support
Export crisp 512, 1024, 2048 or 4096 px textures from the curvature map generator with zero watermarks or paywalls.
Zero install across Windows, macOS & Linux
Skip gigabyte installers — bookmark this curvature map generator and run production look-dev in any modern browser.
HOW IT WORKS
How this curvature map generator works
Four steps from a raw image to an engine-ready file in this curvature map generator — 100% local in your browser.
1Upload a texture or pick a CC0 sample
Drop a JPG, PNG or WebP image into the curvature map generator above, or click one of the built-in Poly Haven CC0 material presets to test the controls immediately using the curvature map generator.
2Tune channel and filter parameters
Adjust the dedicated sliders in the curvature map generator — powered by second-derivative Laplacian height inflection and tangent-space normal divergence — to dial in exact contrast, threshold or orientation using the curvature map generator.
3Verify in the live interactive viewport
Switch view modes or rotate the lighting inside the curvature map generator to confirm there are no inverted values, clipping artifacts or edge seams using the curvature map generator.
4Download lossless PNG or full PBR pack
Click download in the curvature map generator to save your file locally, or continue into the PBR texture generator for a complete engine-packed ZIP using the curvature map generator.
USE CASES
Curvature Map Generator use cases
Four production workflows where a dedicated curvature map generator saves time and fixes shader artifacts.
01
Procedural edge wear & paint chipping
Feed the curvature map generator bright convex peaks into a ColorRamp or Mix node in Blender to expose bare metal along sharp bevels automatically.
02
Cavity dust, grime & moss masks
Isolate dark concave valleys from the curvature map generator to deposit dirt, patina or damp moss inside mortar grooves and carved recesses.
03
Stylized & hand-painted highlight baking
Overlay the output of this curvature map generator onto diffuse albedo in Soft Light or Overlay mode to pop crisp stylized bevels on low-poly assets.
04
Trim sheet & tiling material detailing
Generate a curvature map alongside your normal map so tiling architectural trim sheets react to procedural weathering shaders in UE5.
SCENARIOS
Who this is for
Short scenario-style notes from common workflows. These are illustrative use-case lines — not verified customer reviews, star ratings, or named endorsements.
Having a fast browser curvature map generator with live preview saved me from opening a heavy desktop suite just to fix one material channel.
We cannot upload NDA client textures to cloud AI tools — this local curvature map generator runs entirely on-device and exports clean files in seconds.
Pairing the seamless tool with this curvature map generator on the same site streamlined our whole look-dev loop.
Anonymous scenario feedback · illustrative, not customer testimonials
Try this free curvature map generator now
Scroll up to the live curvature map generator — upload a photo, tune under 3D lighting, export locally. The curvature map generator stays private in your browser.
COMPARE
Browser tool vs a desktop suite
When you need a fast, private map from a photo — without opening a full DCC install.
| Capability | NormalMapAI | Typical desktop suite |
|---|---|---|
| Install & license | Free in the browser — no install | Paid suite + disk install |
| Photo privacy | Stays on your device | Often cloud or local project files |
| Live 3D check | Built-in preview while you tune | Separate viewport / bake step |
| Engine ZIP packing | Unity / Unreal / Godot / Blender presets | Manual channel packing |
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Homepage PBR generator
Live 3D editor hub with full marketing copy.
LEARN
Guides & tutorials
Short how-tos for maps, seamless textures and engine imports.
How to Use a Free Normal Map Generator (Step by Step)
A normal map stores surface direction so flat photos catch light in 3D. This guide walks through NormalMapAI’s free generator — from upload to engine ZIP — without installing software.
How to Make Seamless / Tileable Textures From Photos
Hard seams show up the moment a photo is tiled. Use edge blending, multi-scale fade and a 2×2–4×4 preview so the pattern repeats cleanly before you build normal and roughness maps.
Import PBR Maps into Unity, Unreal Engine and Blender
Export presets pack maps the way each engine expects. This guide covers import settings so albedo stays colored, normals stay linear, and ORM / MetallicSmoothness land in the right channels.
PBR Maps Explained: Albedo, Normal, Roughness, AO, Metallic and More
Physically based rendering needs a small set of textures that describe color, shape and light response. Here is what each map does and which ones NormalMapAI generates from one photo.
Height Map vs Displacement Map: What Changes in a Renderer
Both textures store height as brightness. Height often drives parallax or bump-style effects; displacement moves vertices. NormalMapAI exports both as 16-bit PNG to avoid banding.
Normal Maps: DirectX vs OpenGL (Y Flip) Explained
The only practical difference is the green channel: OpenGL stores +Y, DirectX stores −Y. Pick the right format — or an engine export preset — so bumps do not turn into dents.
Ready to try this free curvature map generator?
No account. No upload. Scroll up to the curvature map generator on this page, drop your texture, preview in real time, and download a clean PNG — or open the PBR texture generator for a full multi-channel ZIP.
FAQ
Frequently asked questions
Q1.What is the best free online curvature map generator without login or watermark?▼
NormalMapAI (normalmapai.com) provides a free online curvature map generator that runs 100% locally in your browser with zero login and no watermark. You can extract convex ridge highlights and concave cavity valleys around a 0.5 neutral gray midpoint for procedural edge wear and dirt masks and export lossless PNGs for Blender, UE5, and Unity.
Q2.How does the NormalMapAI curvature map generator work under the hood?▼
Our curvature map generator processes your uploaded image locally using second-derivative Laplacian height inflection and tangent-space normal divergence. Every slider change recalculates the output in real time so you can inspect the exact response before downloading.
Q3.How do I use the output from this curvature map generator in Blender, Unreal Engine 5, or Unity?▼
Export the PNG from the NormalMapAI curvature map generator and import it into Blender Shader Editor, Substance 3D Painter, Unreal Engine 5 and Quixel Mixer. Set the texture Color Space to Non-Color / Linear (uncheck sRGB) before wiring it to your shader.
Q4.Does this online curvature map generator upload my private textures to a server?▼
No. The NormalMapAI curvature map generator executes entirely inside your browser using local WebGL2 and Canvas memory. Your source photos and exported maps never leave your computer, making it safe for NDA studio assets.
Q5.Can I use textures created with this curvature map generator in commercial games and client projects?▼
Yes. Because our curvature map generator is a deterministic local processing utility, you retain 100% of the rights to any textures you generate from your own photos or CC0 sources for commercial games, archviz, 3D printing, and client deliverables.
Q6.What image formats and resolutions does the curvature map generator support?▼
You can drop JPG, PNG, or WebP files into the curvature map generator and export lossless PNG textures up to 4096×4096 (4K). Where applicable for elevation and relief workflows, NormalMapAI also supports true 16-bit grayscale PNG export.
Q7.How do I avoid visible tiling seams when using the curvature map generator?▼
If your source photo has uneven lighting or hard border edges, run it through the NormalMapAI Seamless Texture Generator or Tileable Texture Generator first, then bring the tileable image into this curvature map generator so every derived channel repeats cleanly.
Q8.Why should I disable sRGB (use Non-Color) for data maps from a curvature map generator?▼
Only Base Color (Albedo) should use sRGB gamma encoding. Technical channels produced by a curvature map generator store linear math values (0.0 to 1.0 or XYZ vectors); leaving sRGB enabled applies a gamma curve that distorts reflections, slopes, and masks.
Q9.How does this browser curvature map generator compare to Substance 3D, Materialize, or Photoshop plugins?▼
Desktop suites require gigabyte installs, Windows-only executables, or paid subscriptions. The NormalMapAI curvature map generator opens instantly on Windows, macOS, and Linux, giving you focused controls and live preview for quick single-map look-dev.
Q10.Can I generate a full PBR material pack alongside this curvature map generator?▼
Yes. While this page is tuned specifically as a curvature map generator, you can switch tabs in the editor or open our PBR Texture Generator to export Albedo, Normal, Height, Roughness, AO, Metallic, and packed ORM ZIPs from the same source photo.
Q11.What parameter settings give the cleanest results in the curvature map generator?▼
Start with one of the six built-in Poly Haven CC0 sample materials in the curvature map generator to see balanced defaults, then adjust threshold, contrast, or smoothing in small increments while watching the live viewport.
Q12.Does the curvature map generator work on laptops or integrated GPUs?▼
Yes. Any modern browser supporting WebGL2 or HTML5 Canvas on Windows, macOS, Linux, or Chromebook can run the NormalMapAI curvature map generator smoothly at interactive frame rates.