Difference in Appearance - Blender vs 3JS Transparent Materials I have been using three.js to display a model aircraft created in Blender. I used the program to add a transparent propeller to the model, using a built-in three.js texture called Basic Material and using a png file to create the propeller.
I am now trying to replace that propeller with an animated propeller created in Blender which uses the same png file (using the Principled BSDF shader).  However, when I display the result in three.js, the propeller is much darker.  Even worse, it becomes even darker when viewed in the direction of the light source - as if it is a shaded object.  Is there a way to make the Blender version look more like the three.js version?

Note that the three.js version seems to get brighter and more transparent when viewed in the direction of the light source - which is what I want.
EDIT: The description of THREE.MeshBasicMaterial says that it is not affected by lights.  Is there a way to create the same kind of material in Blender?
You could try adding a translucent shader mixed with a principled BSDF. To get less realism you could put specularity to 1 and roughness to 0. This could get you closer to your goal.