How can I export PowerPoint 3D vector artwork as a true SVG without rasterization?

Hello,

I create medical illustrations in Microsoft PowerPoint using only vector shapes and custom freeform geometry. Some of these shapes use 3-D Format and 3-D Rotation to create the dimensional appearance.

I need to export these illustrations as true vector SVG files.

I have tested this on PowerPoint for Mac and PowerPoint for Windows, and I get the same result:

• The original artwork consists of vector shapes; there are no inserted PNG/JPEG images.
• When 3-D effects are applied, exporting the artwork as SVG causes the affected shapes to become embedded raster images inside the SVG.
• When the 3-D effects are removed, the same artwork exports as vector SVG paths without embedded raster images.

I need to preserve the 3-D visual appearance while keeping the SVG completely vector.

What is the correct workaround?

Is there a Microsoft-supported way to:

PowerPoint vector shapes + 3-D effects → SVG containing only vector elements without rasterizing the 3-D portions?

I have already tested both Mac and Windows PowerPoint, and the rasterization occurs on both.

I would prefer not to recreate the illustrations from scratch in another application because the artwork is already constructed from PowerPoint vector geometry.

If PowerPoint's SVG exporter cannot preserve its 3-D effects as vector elements, is there a recommended way to convert/reconstruct the 3-D appearance using PowerPoint features that remain vector when exported to SVG?

Any specific settings, export method, VBA method, or Microsoft-recommended workflow would be very helpful.

Thank you.