This add-on evaluates the 3D viewport and renders physical dimension labels directly on Blender's perspective and orthographic grids, eliminating the need to count individual grid lines. The unit labels automatically scale, space out, and format themselves based on camera properties, zoom distance, and window resolution to prevent visual crowding.

Integration into the viewport overlay menu provides dedicated controls for text visibility, scale multipliers, color tinting, and opacity. The tool fully respects Blender's scene unit settings, automatically adjusting between metric and imperial systems like meters, centimeters, feet, and inches. It includes specific logic for modular asset workflows via unit packing, and accurately maps text against Blender's native grid subdivisions.

To ensure viewport frame rates remain unaffected, the labels are batch-drawn using view frustum intersection culling. Users requiring custom aesthetics can replace the default numbers with a standard 512x512 PNG texture atlas, allowing for personalized fonts or symbolic glyphs.