In AC 27 exporting BIMx from Publisher, tick box for "generate global illumination for Realistic shading" is gone when setting options of a 3D view to export. Only options left are Model background and Texture size limit.
What happened?
iMac 2019, macOS 12.7.4 AC 27 (Intel-based), 5003 INT
That checkbox in Archicad 25 and earlier has no effect on BIMx for a while. Therefore, we removed it from Archicad 26.
Instead of precalculated Global Illumination (which could slow down the publishing for hours), BIMx uses a modern real-time rendering. We added many BIMx export-related improvements to Archicad 26, please read more details in this article, and see this for a visual comparison. Since then, shadows and accurate sun positioning with dynamic skybox have further enhanced BIMx's visual quality. You can also find details in the related section of Archicad 27 Help and follow BIMx News.
