How should UVs be handed off from Unity to Unreal?
Direct search answer
Preserve the source mesh and distinguish texture UVs from a non-overlapping lightmap channel. Record units, normals, tangents, material slots, texel density, padding, and export settings, then verify the imported result in the exact Unreal project.
Decision boundary: A valid Unity appearance does not prove Unreal lightmap, tangent, material, or scale correctness.
Continue with Unreal FBX cleanup
- Name every UV channel and document whether overlap is intentional or invalid for the target use.
- Keep source units, smoothing, tangents, material-slot order, and texture references stable.
- Inspect lightmap density, seams, shading, material assignment, and a clean reimport in Unreal.
Best answer
Prepare UV notes for engine import, lightmaps, materials, and reviewable prototype use. SEELE AI helps turn that task into a structured 3D asset brief, practical prompt options, and a review checklist before you continue in Workspace.
Use it when
Use it when
Prepare UV notes for engine import, lightmaps, materials, and reviewable prototype use.
What you provide
File type, source app, target app or engine, visible issue, target format, and the quality bar you need to review.
Expected output
a UV layout brief with seam choices, unwrap method, island spacing, texture handoff, and review checks.
Workflow steps
Set the asset goal
Name the model type, texture use, target app, and whether the asset needs paint, bake, lightmap, or engine import.
Choose layout constraints
Define seam tolerance, island padding, mirrored areas, texture density, and any shape-specific risk.
Plan the unwrap pass
Ask SEELE for the exact unwrap route, review steps, and visible failure checks before export.
Review before handoff
Inspect stretch, overlap, padding, texture alignment, and whether another DCC pass is needed.
Starter prompts
Prompt 1
Plan a Unity and Unreal UV unwrap handoff for a 3D asset workflow. Include the source file, target app, target engine, output format, visible risks, and review checks. Focus on this job: Prepare UV notes for engine import, lightmaps, materials, and reviewable prototype use.
Create an Unreal 5 gamePrompt 2
Plan a Unity and Unreal UV unwrap handoff for a 3D asset workflow. Include the source file, target app, target engine, output format, visible risks, and review checks. Start with a sample GLB asset and return three safe options for the next pass. Keep the output short enough for a first review.
Create an Unreal 5 gamePrompt 3
Plan a Unity and Unreal UV unwrap handoff for a 3D asset workflow. Include the source file, target app, target engine, output format, visible risks, and review checks. Continue the strongest path in Workspace and keep final review items explicit. List the manual checks before export.
Create an Unreal 5 gameWays to start
Ways to start
Review boundary
- A final UV layout still needs visual inspection in the DCC or engine.
- Automatic unwrap results can need manual seam, packing, and texel-density cleanup.
- Protected models, client files, and marketplace assets still need rights review before reuse.
What SEELE helps keep clear
- Turns rough UV questions into a clear layout checklist.
- Keeps texture, lightmap, and engine handoff requirements visible.
- Separates automated first-pass layout from human review.
- Works as a planning layer before Blender, Maya, 3ds Max, C4D, Substance, or engine import.
Workspace handoff
| Step | What to pass forward | Action |
|---|---|---|
| Brief | Source file, target app, expected output, known issue, and review checklist. | Create an Unreal 5 game |
| Sample | A low-risk sample asset direction before using your own work or client-approved assets. | Open sample |
| Continue | The strongest path, final constraints, and manual review items. | Continue |
Related workflows
FAQ
What is Unity and Unreal UV unwrap handoff best for?
It is best for prepare uv notes for engine import, lightmaps, materials, and reviewable prototype use. SEELE turns the task into a focused brief, next-step prompts, and review checks.
Can I start from an existing model?
Yes. Add the file type, source tool, target app, target engine, and visible issue so the handoff stays practical.
Does this replace specialist 3D review?
No. It helps plan and inspect the workflow; final topology, UVs, materials, rigs, and engine behavior still need human review.
What output should I expect?
Expect a UV layout brief with seam choices, unwrap method, island spacing, texture handoff, and review checks, plus prompts for the next iteration.
Can I continue from this page into Workspace?
Yes. The buttons carry the workflow focus, prompt, and page context into the SEELE Workspace.
What should I check before publishing or exporting?
Check file rights, target format, visual quality, scale, material references, and whether the model behaves correctly in the target viewer or engine.