Unlike traditional 3D rigs that require manual spacing, the Z3D plugin analyzes your scene’s depth map (Z-depth pass). It dynamically spaces the virtual cameras based on the disparity between the nearest and farthest objects. This prevents "cardboarding" (flat-looking 3D) and eliminates the eye-strain caused by excessive parallax.
As of late 2024 and into 2025, the Blender Z3D plugin is undergoing a significant rewrite to leverage Blender 4.2’s new and the Viewport Compositor . Future versions promise: blender z3d plugin
Check for inverted normals (faces pointing inside-out) after importing, as this is common with older ZModeler files. Limitations Unlike traditional 3D rigs that require manual spacing,