Seamless Maker

A texture tiles cleanly when its left edge continues into its right edge, and its top into its bottom. The usual trick is to shift the image by half its width and height, which brings the mismatched edges into the middle of the frame where you can see what you are doing, then blend them away.

This does both steps, with a blend width you control. A narrow blend keeps detail but can leave a faint line. A wider blend hides the seam but softens a band through the texture. Check the result in the Tiling Checker.

It is seamless but still looks bad tiled.

Seams and repetition are different problems. Once the edges match, one eye-catching feature still gives away the grid. Tone it down, or break it up in the shader.

Does this work on normal or roughness maps?

It works on any map, but blending softens normals near the seam. Make the albedo or height seamless first, then regenerate the other maps from that.

Related: Tiling Checker · Material from Photo · Levels

All tools

Edge Padding: Bleed UV island colors outward into empty space so textures stop showing dark seams at lower mip levels. Runs in your browser.

ORM Packer: Combine ambient occlusion, roughness and metallic maps into a single packed RGBA texture, with control over which map goes in which channel.

Tiling Checker: Preview a texture tiled 3x3 with the seams highlighted, plus a half-offset view, so visible edges and obvious repetition show up before the asset ships.

Material Preview: Preview albedo, normal and ORM maps together on a lit sphere or cube, without exporting into Unreal or Unity to check how a material looks.

Height to Normal: Convert a height, bump or displacement map into a tangent space normal map, with adjustable strength and a choice of DirectX or OpenGL output.

Combine Normals: Layer a detail normal map over a base one and keep the detail from both, instead of averaging them into something flatter than either.

Normal Strength: Scale how much a normal map bends the light, without rebaking it. Keeps the map valid instead of breaking it the way a contrast slider would.

Levels: Set the black point, white point, midtones and inversion of a roughness, AO, height or mask texture, with a live preview.

Flip Green: Invert the green channel of a normal map to switch it between DirectX and OpenGL, which fixes normals that light inside out.

Rough ↔ Gloss: Convert a roughness map to glossiness or smoothness and back, for assets moving between engines that expect one or the other.

Renormalize: Restore a normal map after resizing, blurring or compression has weakened it, without changing which way any of it points.

Material from Photo: Generate albedo, height, normal, roughness and AO maps from a single photo, as a starting point you then tune.

AO & Curvature: Get ambient occlusion, curvature and cavity maps out of a normal map, with no high-poly mesh and no baker, for edge wear and dirt masks.

Channel Split: Split a packed ORM, RMA or mask texture back into one grayscale map per channel, exported individually or as a zip.