One problem solved.
Transparency
I have finaly found yhe problem of transparency who was showed in Blender and not in the sim.
I use PhotoShop (PSD) texture in Blender with Alpha Channel.
But when exporting, the Alpha channel from PSD is loose. So the PNG texture was not whit a alpha.
After saving my PSD texture in PNG manualy in PaintShopPro, the Alpha is saved in PNG and transparency is correct in MSFS.
Transparency
I have finaly found yhe problem of transparency who was showed in Blender and not in the sim.
I use PhotoShop (PSD) texture in Blender with Alpha Channel.
But when exporting, the Alpha channel from PSD is loose. So the PNG texture was not whit a alpha.
After saving my PSD texture in PNG manualy in PaintShopPro, the Alpha is saved in PNG and transparency is correct in MSFS.










