Ive tried some normal mapping experiments, Ive yet to really follow a tutorial, but they all seem to be baking from high to low, and require both meshes.
I just wanted to know if its possible to just make normals for use later, without requiring the second mesh?
first image I tried to bake normals, set to tangent i think, but nothing showed up.
second, tried changing to camera, that showed up but the wrong colours.
then i tested it and it was kinda rubbish, even blenders “get normals from texture” button was better. maybe cos its wrong colour? can i just change them in photoshop or am i doing it wrong.
red - displaced geometry,
green - generated normal map
blue - pressing the “nor” button in map to, without a normal map.