Trellis (and, maybe, others) do a better generation of 3D object than one expects. Input:  Gaussian output preview: https://github.com/user-attachments/assets/b9e11ade-5db8-4471-9334-a013202ad96c  There is transparency, actual glass, which is not converted with common algorithm. GLB output preview:  We should implement Gaussian output as well as better mesh converters.