In the meantime, would it be possible to modify for example the HBP poster, and replace the main texture by my custom .jpg ?
I tried to create a new poster in $HBP/Models/poster_models/, by copying an existing subfolder (copying $HBP/Models/poster_models/viz_poster_2 to $HBP/Models/poster_models/viz_poster_custom).
Then I replaced the .jpg referencend in $HBP/Models/poster_models/viz_poster_custom/meshes/vis_poster_custom.dae by my own image.
Then I created the needed symlinks for this new model.
When I launch the experiment (which contains my new poster model), the new poster is there, but it still display the original image it had as viz_poster_2. So I guess I forgot to modifiy something in the new folder. Or it may also be that I should do this completely differently.
I have no experience in blender
Could someone give me some help about that?