Tools for the jobs you thought you were going to do “just once”.

There are two kinds of people who make transition tiles: people who have not made a full transition set yet, and people who have made one and now have a very specific look in their eyes.

You start with two materials. “Should be easy.” Then come the edges. Then the corners. Then the inner corners. Then the variants. Then someone notices that one road segment does not quite meet the river. Then you discover that your beautiful little Blob-style set apparently needs 47 different pieces to stop looking like it was assembled by a committee.

Tile Surgeon is for the part of that process that absolutely does not deserve to be hand-painted forty-seven times. Give it your materials, define the transition, and let it generate the border and corridor variants for you.

It handles square, isometric and hex grids, with terrain blending as well as corridor mode for roads, rivers and paths. You can tune transition size, softness, gradient, noise, relief and material height, stack multiple materials, and browse the generated variants before exporting them.

Need a full set rather than one pretty demo tile? Good. That is literally the point. Blob-style sets, Wang-style layouts, edge/corner variants, hex schemes — generate the family, not just the one tile that looks suspiciously good in the screenshot.

What it does

• Terrain mode. Biome borders and edge variants without hand-painting the family.
• Corridor mode. Roads, rivers and paths with controllable width and fade.
• Three grid types. Square, isometric/diamond and hex.
• Material stack. Textures, objects and transitions can be layered and reused.
• Variant control. Browse corners, edges and fills, then reseed for a fresh layout.
• Export. PNG tilesets with flexible output size and optional black/white masks.

Who it’s for

Game artists and small teams building production tile sets for actual maps — especially when the alternative is spending an afternoon painting the same edge in slightly different shapes.

You know the drill. You have 184 sprites. They all need to fit on a sheet. Some are tiny. Some are enormous. Three are duplicates. One is rotated for no good reason. And naturally, the thing you actually wanted to do today was make the game.

Stitch Surgeon takes the loose pile of sprites and turns it into a texture atlas you can actually ship. Drop in files or a whole folder, watch the packing happen live, move things around when you need to, and export the result without opening a spreadsheet to figure out why sprite 137 disappeared.

Use shelf packing when rows make sense, or a fixed-cell grid when your project wants predictable cells. You get padding, borders, edge extrusion, transparent trimming, per-sprite scale and pivots, alignment controls, zoom, pan, outlines and lasso selection. Duplicate pixels can share a slot while every original name still survives in the metadata.

And if the whole thing does not fit? It does not silently eat your sprites and pretend everything is fine. Extra Sheets continues with atlas-2, atlas-3 and so on. Revolutionary concept: the software admits there is more stuff.

Export is where Stitch gets properly unfriendly to unnecessary extra steps: PNG, WebP, uncompressed PVR, GPU PVRTC / ETC2 / ASTC and KTX2. Optional hash JSON can provide frame, trim and pivot metadata for Phaser-style atlas loaders. The project itself can be saved as .atlas.json, with undo, redo and autosave.

What it does

• Pack it live. Shelf rows or fixed-cell grids with a live preview.
• Extra sheets. Overflow continues into atlas-2, atlas-3, and beyond.
• Per-sprite control. Scale, pivot, alignment and offsets where you actually need them.
• Trim and extrude. Clean transparent borders and add edge pixels for safer sampling.
• Modern exports. PNG, WebP, PVR, PVRTC, ETC2, ASTC and KTX2.
• Project safety net. Undo, redo and autosave in .atlas.json projects.

Who it’s for

This is a Windows desktop tool, not a command-line/CI pipeline. Unity and Godot can use the exported PNG, but the optional hash JSON is intended for Phaser-style loaders rather than pretending to be a native Unity/Godot importer.

This product includes components of the PowerVR Tools Software from Imagination Technologies Limited.

About 90% of 3D artists will read the first sentence about this tool and go: “Okay… but why would I need that?”
The other 10% will stare at the screen like they have just discovered a unicorn that was specifically bred to fix their Monday morning problems.

You know the problem. A perfectly reasonable request arrives from a designer who has apparently had a difficult weekend: move the sponsor logo, add another decal, squeeze this asset into the existing atlas, preserve the texture density, and please do it for the other eighty variations too. The model already has UVs. The textures are already painted. Nothing is technically broken. Which is exactly what makes the job so annoyingly expensive.

You move one UV island in your DCC. The wire moves. Great. Except the paint does not. So now you are moving pixels, rebuilding maps, checking alignment, fixing normals, and quietly wondering whether “asset preparation” was always supposed to be this much of a punishment.

That is the job UV Surgeon is trying to kill.

Load an already-UV'd mesh. Move, rotate and scale the islands. With Move with Texture enabled, the paint comes with them — diffuse, normal, roughness and the rest of the texture stack, not just the wireframe. Park islands in the Dock while you clear the main texture, or send them to Target textures when you are building a new layout.

The useful part is that the tool treats the texture maps as part of the operation instead of pretending they are someone else's problem. Each map can have its own Target texture, and when source and destination resolutions differ you can either match UV size or preserve the original texel density when baking.

Need another UV set for decals or a lightmap? That is where the extra UV sets become useful. And if your pipeline has gone full UDIM goblin, I am not judging you. Well, maybe a little. But the workflow is still built around moving islands and their paint rather than making you rebuild the whole thing from scratch.

Then bake the maps and write the result back out. PNG, TGA or JPEG for textures; OBJ, GLB (up to four UV sets), or an FBX UV patch for the mesh. There is also a 3D preview when the GPU cooperates. If OpenGL decides today is the day it wants to become a problem, the 2D editor still works.

And no, this is not an unwrapper. The mesh already needs UV islands. That limitation is intentional. UV Surgeon is for the moment after the unwrap — when the UVs are technically done, but production has decided they are absolutely not done.

What it does

• Move the UV, move the paint. Islands carry their maps between Main, Dock and Target.
• Keep texel density. Preserve density or match the destination footprint when resolutions differ.
• Dock. Park islands with their stored maps while you clear the main atlas.
• Target textures. Each map can have its own destination texture.
• Extra UV sets. Useful for additional mapping needs such as decals or lightmaps.
• Export. PNG, TGA or JPEG maps, plus OBJ, GLB or an FBX UV patch.

Who it’s for

Windows desktop app, one-time purchase, $49 USD, one seat. Commercial use is allowed. It is not a DCC plugin and not an auto-unwrapper. The current 1.0 installer is unsigned, so Windows SmartScreen may complain on first launch. It is Windows being Windows, not the software developing a personal grudge against you.

Sprite Surgeon is the reverse operation of Stitch Surgeon: point it at a texture atlas and let it find the individual sprite elements for you. Instead of manually hunting through a sheet and exporting pieces one by one, the tool is built around detection, clean extraction and correctly trimmed output.

The idea is deliberately simple: atlas in, individual sprites out — ready for whatever packing, padding or engine-import step comes next.

What it does

• Detect. Find sprite elements inside a texture atlas.
• Extract. Export the detected elements as individual sprites.
• Trim. Cleanly trim transparent space around the extracted artwork.
• Pipeline friendly. Designed as the extraction step before packing and engine import.