Mastering Scandy: Tips, Tricks, and Best Practices
What Scandy is
Scandy is a 3D scanning app/platform that captures, processes, and exports 3D models using mobile devices and depth sensors (e.g., LiDAR-equipped iPhones/iPads). It’s used for prototyping, AR content, 3D printing, and digital archiving.
Best setup practices
- Device: Use a LiDAR-equipped iPhone/iPad for higher fidelity and faster capture.
- Lighting: Work in even, diffuse lighting; avoid direct sunlight and strong backlight.
- Background: Scan against a plain, non-reflective background to reduce noise.
- Stability: Move slowly and steadily; keep the device at a consistent distance (about 0.5–1.5 m depending on subject).
- Overlap: Ensure 60–80% overlap between frames—cover all angles, including underside if needed.
- Surface prep: For shiny/transparent objects, apply a temporary matte spray or powder (if permissible) to improve scanning.
Capture tips
- Start wide, then close in: Begin with an orbiting pass to capture overall shape, then do closer passes for fine detail.
- Use markers for texture-poor subjects: Add removable stickers or markers to help the scanner track.
- Scan in sections for large scenes: Break large objects/environments into sections and align later.
- Avoid moving subjects: Scan stationary objects only—people require special workflows (pose holds) or multiple quick passes.
Processing workflow
- Import and inspect: Check raw mesh for holes, noise, and misalignments.
- Clean: Remove stray fragments and non-target geometry.
- Align/merge: Use automatic alignment, then refine manually if needed.
- Fill holes and smooth: Use conservative smoothing to preserve detail.
- Retopology (if needed): Create a cleaner, lower-poly mesh for animation or real-time use.
- Texture baking: Bake high-res color/normal maps onto the optimized mesh for fidelity.
- Export: Choose file format by use case — OBJ/FBX for general 3D apps, STL for 3D printing, glTF for web/AR.
Common issues & fixes
- Noisy scans: Increase overlap, slow movement, better lighting; apply denoise filters sparingly.
- Holes/missing data: Re-scan occluded areas; use hole-filling tools; combine multiple passes.
- Texture blur/misalignment: Improve lighting and maintain consistent distance; re-bake textures.
- Scale errors: Include a reference object of known size or use built-in measurement tools.
Optimizations by use case
- 3D printing: Ensure watertight mesh, correct scale, manifold geometry; export STL and run slicer checks.
- AR/web: Use retopology and glTF; limit polygon count and compress textures.
- Archival: Preserve high-res scans (OBJ + high-res textures); store raw captures and processed files.
- Animation: Retopologize, create proper UVs, and rig a simplified mesh with baked normal maps.
Tools & integrations
- Desktop: MeshLab, Blender, ZBrush for cleaning, retopo, and sculpting.
- Pipelines: Use Blender or Maya for animation; use Meshlab/Netfabb for repair and analysis.
- Export formats: OBJ, FBX, STL, glTF — pick based on target platform.
Quick workflow checklist
- Prepare subject and environment.
- Capture overlapping passes (wide → close).
- Inspect and clean raw mesh.
- Align/merge passes; fill holes.
- Retopo and bake textures if needed.
- Export in appropriate format and verify scale.
Date: February 5, 2026
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