像素画板 vs Shapely 3D

像素画板支持笔刷橡皮吸色和填充工具，支持模板预览应用和网格显示，支持撤销重做和调色板自定义，支持导出保存图片，适合像素创作和头像绘制

Shapely 3D is a fast, native 3D modeling app built for iPad — sketch, sculpt, and export real 3D models with just your finger or Apple Pencil. Build scenes from simple primitives, then move, rotate, and scale them with an on-screen gizmo. Snap to a configurable grid, measure distances as you work, and use the orientation cube to jump straight to any view. Shapely 3D saves your work as a native document you can open again anytime, right where you left off. Before you print, tap View in Room to see the model on your desk at its actual size, through the camera, or export a USDZ for Quick Look and any USD tool. Apple Pencil Pro's squeeze switches sketch modes mid-drawing and hover shows where the next shape will land. Every project is in Spotlight, Siri and Shortcuts. Shapely 3D Pro unlocks: • CSG boolean operations — union, subtract, and intersect shapes to build more complex forms • STL export — send your models straight to a 3D printer or another CAD tool • Sketch & Extrude — draw a 2D profile and pull it into a solid • Smoothing — round any object with adjustable, non-destructive subdivision • Cut tool — slice objects apart along a face or a drawn line • Edit Faces — move, extrude, and reshape the individual faces of any object, and give any face a color of its own • Repair — find the holes, stray faces, and inside-out faces a slicer would trip on, see them in red, and fix them before you export Whether you're prototyping a part, teaching geometry, or just enjoy building things in 3D, Shapely 3D keeps the fundamentals simple and gets out of your way.