Surface Labs

Surface Labs is a node-based application for authoring procedural textures and materials. Users build a graph by connecting operations from a library that includes generators, filters, blends, transforms, normals, channel operations, and math nodes. A GLSL editor supports custom nodes that compile to the native Rust engine. Desktop authoring supports resolutions up to 8192 × 8192 in 32-bit float; iPadOS and Android support up to 4096 × 4096. A headless command-line tool evaluates project graphs and exports textures for batch work and CI. Its built-in MCP server can let compatible assistants inspect and edit projects, render nodes, and export textures. The server is opt-in, uses a generated token, binds to loopback, and rejects requests with a non-local Origin; its file arguments can still reach files available to the user account beyond a project directory. Projects bundle materials, subgraphs, embedded images, fonts, a preview model, and export settings in one file. The app is free while in early access. The iPad build is distributed through TestFlight, where builds expire on the usual 90-day cycle.

Surface Labs combines node-based material authoring with custom GLSL nodes and command-line exports. Consider the mobile resolution cap and MCP file access behavior when choosing it.

Surface Labs may suit indie developers and people working in Unity, Unreal Engine, Godot, VFX, or other PBR texture workflows. Its command-line export tools may also fit batch and CI pipelines.

Overview

Surface Labs is a procedural material and texture authoring app for people who prefer building results from connected nodes. It is best suited to indie developers and artists working in PBR pipelines who want custom operations and repeatable exports. Its strongest case is the mix of graph-based authoring, GLSL extensibility, and command-line automation; mobile resolution limits and MCP file access call for care.

Key features

Node graphs and custom shaders

The library spans generators, filters, blends, transforms, normals, channel operations, and math, giving material authors a wide set of building blocks. When those are not enough, the GLSL editor allows custom nodes whose code is compiled to the native engine. That makes Surface Labs a stronger fit for users who need to shape a workflow than for those seeking only a fixed set of presets.

Rendering and project portability

The app uses a native Rust engine, and its maker says most nodes render in under 2 ms. That reported speed is useful context, not a guarantee for every graph or device. A single .surfacelabs file can carry materials, subgraphs, embedded images, fonts, the preview model, and export settings, which is practical for moving a project as a self-contained unit.

Automation and assistant access

A headless command-line tool evaluates project graphs and exports textures, making batch work and CI pipelines possible without relying on the interactive editor. The built-in MCP server lets compatible assistants inspect and edit projects, render nodes, and export textures. It is opt-in, binds to loopback, uses a generated token, and rejects requests with a non-local Origin. However, its file arguments are not confined to a project folder and can reach files available to the user account, so users should consider that access before enabling it.

Pricing

The Early access plan costs nothing and is free while in early access. It includes procedural materials, texture baking, PBR workflows, and node-based authoring. That makes it a low-cost way for an indie developer or artist to explore the complete stated workflow, though the early-access term is the condition attached to the price.

Platforms

Surface Labs supports Windows, macOS, Linux, Android, and iPad. Desktop authoring reaches 8192 × 8192 in 32-bit float, while iPadOS and Android top out at 4096 × 4096. Mobile users who need larger textures therefore have a narrower ceiling than desktop users. The iPad build is distributed through TestFlight, where builds expire on the usual 90-day cycle.

Who it's for

Surface Labs is aimed at indie developers and material artists using Unity, Unreal Engine, Godot, VFX, or other PBR texture workflows. Its custom GLSL nodes suit users who need operations beyond the standard library, while the headless exporter is particularly relevant to teams with batch or CI work. It is a less natural fit for mobile-first authors who require desktop-level resolution, or for anyone unwilling to grant an MCP server access to user-account files.

Pros and cons

• Pros: Custom GLSL nodes extend the built-in graph library, letting users add operations that suit their pipeline.
• Pros: Headless graph evaluation and texture export support batch processing and CI use.
• Pros: The portable project file keeps materials, assets, preview model, and export settings together.
• Cons: Android and iPadOS resolution is capped at 4096 × 4096, half the desktop maximum on each dimension.
• Cons: MCP file arguments can reach user-accessible files outside the project directory, despite the server's local-only safeguards.
• Cons: The iPad TestFlight build expires on a 90-day cycle.

Alternatives

For a broader browse, see Game Texture Software and 3D Texturing Software.

• Marmoset Viewer is an alternative for readers considering a viewer included with Toolbag versions 2.07 and newer or offered as a standalone Viewer.
• ArmorPaint is an open-source alternative with source code linked from its download page.
• Houdini is another option, with freemium pricing and a Windows, macOS, and Linux platform set.
• Blender is a free, open-source 3D creation suite for Linux, macOS, and Windows.
• InstaMAT offers a free Pioneer License for users with revenue or total funding under $100,000, with attribution required; its Pro License is $36 a year.
• Mari has a non-commercial free plan with export limited to 4K and 16-bit per channel, and Python scripting disabled.
• Gaea has a Windows-only Community Edition for non-commercial use with a 1,024 × 1,024 single-build resolution.
• PBRize is a web-based option whose free plan includes 12 usage units per month, a 1K maximum resolution, 1 GB storage, and basic generation.

Verdict

Choose Surface Labs if you are an indie developer or material artist who wants node-based PBR authoring with custom GLSL operations and automated exports at no charge during early access. Look elsewhere if your mobile workflow requires textures above 4096 × 4096 or you cannot accept the MCP server's broader file access.