Hello,
If ARCHICAD crashes for you when you try to save a pdf from the vectorial 3D window, that's definitely a big issue. Please send in the bug report, write down the bug ID you get, and send your project (along with the bug ID) to your local support, so that they can investigate what might cause ARCHICAD to crash and fix it in the future. My guess would be that you have insufficient memory though. We recommend at least 16 GB of RAM, but even for everyday computer users, 8 GB is suggested (and since you said it only crashes with a more complex model, it is definitely possible).
To solve your black shadows issue though, there are a few other solutions:
- If you are on ARCHICAD 21, you can set the darkness (shading intensity) of the shadows for Vectorial 3D Views in the new 3D Styles window! Here's some information about 3D styles:
https://helpcenter.graphisoft.com/guides/archicad-21/archicad-21-reference-guide/user-interface-reference/dialog-boxes/3d-styles/
- If you are still on ARCHICAD 19/20, you can use 3D documents (I prefer this to vectorial 3D windows - of course it is also available for 21). In the 3D document's settings, you can change the hatching and pen of the shadows, much like in sections/elevations (so you can make it a 100% black fill). You can find out more about 3D documents on this page:
https://helpcenter.graphisoft.com/guides/archicad-20/archicad-20-reference-guide/views_of_the_virtual_building/archicad_model_views/3d_document/about_the_3d_document/#1441803
Good Luck,
Daniel Alexander Kovacs
Professional Services Consultant
GRAPHISOFT
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