Ok, here's the thing...
After 12+ years in SL I'm building for the first time and after week of wrestling with Blender and watching numerous helpful videos by all the usual suspects, I have a mesh house built in Blender exported with a working physics model in SL.
My problem is making the textures appear more realistic with shadows in the corners etc. I have read a lot about Ambient Occlusion and managed to bake a decent AO map for the mesh, BUT it seems that I can not apply the AO as a layer ontop of the material texture in SL. All the advice points towards combining the AO map and the texture in Blender (or other graphics editor) and then applying the new texture to the mesh inworld to get the correct effect.
This does seem a bit limited as it means that everytime I'd want to change my wall texture, I'd have to create a new texture that's overlayed with the AO map, upload to SL and then apply to the mesh inworld.
I feel like I'm missing something important... can anyone please help?