ORM Packer

Occlusion, roughness and metallic are each a single channel of grayscale. Shipping them as three separate images wastes most of the memory you pay for. Packed into one RGBA texture they cost one slot and one sample instead of three.

Pick a source image per channel and this builds the packed map. Unreal expects occlusion in red, roughness in green and metallic in blue. Unity and glTF use their own orders, so set the channels to match whatever you are importing into. Alpha is left free if you want to carry a height or detail mask there.

What is the difference between ORM and RMA?

Only the order. ORM is occlusion, roughness, metallic. RMA is roughness, metallic, ambient occlusion. Set the channel sources to match the one your engine wants.

Should a packed map be imported as sRGB?

No. These are values, not colors. Import the packed texture as linear or non-color, otherwise the engine bends the numbers with a gamma curve.

My maps are different sizes.

Resize them to match first. Scaling a roughness or metallic map is a quality call, so this will not guess one for you.

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.

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.

Seamless Maker: Turn a photo or texture into one that repeats cleanly, by shifting it by half and blending the mismatched edges away.

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.