Supported File Formats

Quick reference

The upload screen lists the accepted formats right under the drop zone:

Max file size for images: 5 MB. 3D models have no size limit.

Recommended dimensions: 2000–3000 px on the longest side.

Image formats

PNG

Use for:

• Hand sketches photographed or scanned
• Exports from CAD / design software
• Anything where sharp lines matter

JPEG

Use for:

• Photos of physical models
• 3D screenshots from Sketchup / Rhino / 3ds Max
• Previous renders you want to iterate on

WebP

Use if:

• Your export tool defaults to WebP
• You want smaller files with good quality

All three image formats produce equivalent render quality — pick whichever matches your source.

3D models

Five 3D formats are accepted: SKP, GLB, GLTF, OBJ, and STL.

• SKP — upload SketchUp files as they are. Materials, textures, and components come across
• GLB is recommended for other tools — it's a single binary file with textures embedded. Simplest to upload
• GLTF works for multi-file glTF exports
• OBJ works for classic Wavefront exports — textures may not transfer if they're in separate files
• STL works for AutoCAD 3D solids and CAD/3D-print exports — geometry only, with no colors or materials

Uploading from SketchUp

1. Save your model in SketchUp (File → Save)
2. Upload the .skp file to Render a House — no export or plugin needed

If a .skp can't be read (some very old SketchUp files), open it in a recent SketchUp version and save it again, or export it as .glb (File → Export → 3D Model → glTF Binary File) and upload that instead.

Exporting from Revit

Revit can't export glTF on its own. Install the Leia – glTF Exporter plugin (by e-verse, for Revit 2021–2026) from the Autodesk App Store, then export your model as .glb.

Exporting from Blender, Rhino, and others

• Blender: File → Export → glTF 2.0 (.glb/.gltf) — pick .glb to embed textures
• Rhino: File → Export Selected → .glb with Map Rhino Z to glTF Y on (older Rhino needs the glTF-BinExporter plugin)
• 3ds Max: File → Export → Real-Time Exporter… (2023+) → save as .glb

For a step-by-step export guide with screenshots, see Export your 3D model.

What doesn't work

• DWG / DXF — CAD-native formats aren't supported. Export a view as PNG/JPEG, or export the 3D solids as STL (see Export your 3D model)
• FBX / USDZ — not supported. Convert to GLB first
• RVT (Revit native) — not supported. Export to .glb with the Leia – glTF Exporter plugin first
• Video files — not accepted as input. Render a House generates video from a render, not the other way around

File size optimization

If your image is over 5 MB:

• Export at lower resolution, or switch PNG → JPEG (85% quality is usually indistinguishable)
• For plans with lots of detail, take a clean screenshot at 2000–2500 px instead of exporting the full-resolution source

3D models have no size limit, but very dense meshes can slow the upload. Aim for under ~100k polygons (use Blender's "Decimate" modifier or equivalent) and prefer GLB over multi-file GLTF to keep textures bundled.

Resolution guidance

Higher resolution does not improve render quality — the platform handles upscaling automatically at download time.

See also

• Upload Your Design — the full upload walkthrough
• Getting Started — your first render