Photo-to-lithophane STL, thickness coupons and print setup PDFs. Offline.
Give a photo a printable new dimension.
Porcela creates flat or curved lithophane STL models offline. Inspect the actual mesh and mid-height thickness section, adjust the photo tones, then save files for your slicer.
• Developed width 50–180 mm; height follows the photo aspect ratio within 20–240 mm
• Flat, 30°, 60° or 90° arc, thin/thick limits and an optional sampled 2 mm border
• Brightness, contrast, gamma, horizontal flip and tone inversion
• Actual mesh Tone/Solid/Section views, orbit/pinch and Front/Oblique/Edge cameras
• Export 128/256/512 long-edge samples; interactive preview capped at 72, at least 16 samples per axis
• Closed binary STL model and one connected 105×20 mm, 21-step thickness coupon
• Setup PDF with dimensions, section, print notes and coupon table; view the actual generated PDF in the app
• Adjusted PNG, settings record, readme and SHA-256 manifest, packaged into a ZIP
• Save individual files with Android Files or share the complete ZIP
• 12 local projects, duplicate, replace photo, rename/notes, deletion confirmation and durable reopening
Supported input
Single still JPEG, PNG or WebP up to 40 MiB/40 megapixels. HEIF/AVIF depend on device codecs. The working copy applies orientation, flattens transparency on white and uses 8-bit sRGB with a 2048 px maximum long edge. Original metadata is removed. Keep original photos separately.
Printing and limits
STL has no unit tag: coordinates are millimetres. Import at 100% scale and set orientation in your slicer. Test material, slicing and lighting with the included coupon. Tone view is a digital illustration, not calibrated transmission. No physical print or result is guaranteed. No RAW editor, crop, slicing, G-code, printer connection, material profiles or cloud sync.
Editing invalidates generated files. Settings JSON is a record only, not an importable backup. Private projects are removed on uninstall and Android automatic backup is disabled. Save important photos and outputs elsewhere. An optional AI-generated Alpine example opens only when you choose it; a new library starts empty.
One upfront purchase. No accounts, ads, analytics, tracking, subscriptions, in-app purchases, network, camera or broad storage permissions. You choose files, destinations and share recipients. External apps and document providers have their own policies. English and Korean controls. Android and iPhone/iPad editions are separate purchases.
What's new
Initial Android edition with photo-derived lithophane geometry, thickness inspection, connected coupon and actual STL/PDF/ZIP delivery.