LDCad
LDCad is a multiplatform LDraw (virtual LEGO) editor that lets you edit LDraw model documents in real-time. The major features of the latest LDCad version are: Windows and Linux support Multi-threaded (background) loading of parts Fast detailed real-time 3D rendering MPD Support Basic part snapping on growing collection of (official) parts Flexible part support (spring, hoses, bands) Part grouping Part ghosting Nested editing Relative grids Multiple file editing (open as many files you like) Instruction stepping support Undo/redo Copy/paste from to other LDraw software Highly customizable part and color bins
