Solid Editor vs Sproxel

Solid Editor is a voxel graphics editor for creating game-ready assets in the Solid Engine pipeline. Its scene uses Solid Engine’s path tracer to render lighting in real time while editing. Voxels can be edited directly in 3D with a brightly colored ball as the pointing device. A single Selection tool applies effects to selected voxels and previews them live. The editor is natively compatible with Solid Engine and requires 64-bit Windows 10 or newer or 64-bit Linux, with Nvidia graphics cards only. A GeForce GTX 1080 or better is recommended but not required. The optional Ball Pointer needs a webcam, while the editor also works without it. Windows and Linux v0.1.0 downloads are offered, with a warning that this early version may crash or glitch. MagicaVoxel import/export, animation, scene layers, and polygon model import are planned. The free editor has a one-time 10.00 USD Pro user plan.

Sproxel is a free, open-source 3D interface for making and editing voxel models, using cube-based forms as an extension of 2D pixel art. It can generate sprites for custom displays or game engines. Version 0.4 supports importing BMP, GIF, JPEG, PNG and TIFF images into voxel grids, and exporting OBJ meshes as quads or triangles without internal polygons. Version 0.5 added grid resizing, draggable tools with previews, voxel outlines, camera snapping and a two-click Line tool. Version 0.6 added multi-sprite projects, a Python plug-in system, Paint3D (.3MP) import and export, slicing, and indexed-color grids with a 256-color palette. The maker describes it as developed on Windows and Linux using the QT windowing framework; the listed platforms are Windows, macOS and Linux. The download is described as a package that can be copied to a directory and run without installation. The package has no help file, and the maker points users to a manual. The version 0.6 release post said its download was win32 only at that time.