OceanMaxPlugin is an exporter for Autodesk 3ds Max that writes scenes into Ocean input format (*.ocxml). Ocean is a full-spectral light simulation engine renderer that simulates the optical behaviors of a variety of materials, whether parametric or measured. The plugin requires Ocean 2024R3 as a prerequisite.
On export, the plugin automatically converts layer hierarchy, geometries, cameras, and material names so they carry over into Ocean. Its interface lets you send an entire 3D scene at once or specify which parts to send, including geometry, materials, environment, and layers. The developer notes this enhances the virtual prototyping workflow.
Version 2.2.0, updated in April 2025, adds support for 3ds Max 2026. The plugin is listed here as free; check the developer's page for current licensing terms.