That Open Engine 3.4 brings native 2D drawings to browser-based BIM

That Open Platform’s Release 3.4.0, presented in the “Native 2D Drawings for BIM” event, targeted one of the harder gaps in web-based BIM: producing real technical documentation from models. The release introduced a 2D drawing system built on Fragments and That Open Engine, designed to generate plans, sections, elevations, annotations, and exports directly in the browser.

The event covered model-to-2D projection, multi-viewport drawings, scale control, layers, DXF and PDF export, linear and angle dimensions, leaders, labels, slopes, elevations, coordinates, reusable drawing blocks, and custom annotation systems. It also introduced Paper Space and Infinite Canvas UI components for building complete drawing production interfaces rather than one-off screenshots or viewer overlays.

For AEC software, drawings are not a side feature; they are still one of the main delivery formats for construction information. Bringing drawing generation and annotation into an open web engine reduces the dependence on parallel CAD workflows and makes it easier for developers to build targeted documentation tools. If the system matures, it could become a useful building block for browser-based BIM authoring, checking, and deliverable workflows.