I set the meshes to have a fabric material to mitigate the annoying reflectiveness as much as possible, but it’s no good. I need something that completely ignores lighting. Same for large flat planes like the ocean surface having no lighting.
you should be able to do this effect by manually setting the normals of the mesh to face upward. This will give it the same specular highlight as the flat plain underneath, as long as you don’t tilt the mesh’s rotation.
try this (for blender 2.8):
select every face in edit mode
head into mesh > normals > point to target
hit M to move the norrmals to mouse, then click anywhere to bring up the manual settings
check Align, set every target to 0
set either X, Y, or Z (depends on the initial rotation of the mesh) to like 1000, until the mesh looks “fullbright”
Hey, pro-tip: read OP’s post a little more closely before trying to scrap together a quick reply. You clearly put in effort into your reply, creating an example place and then taking a screenshot of it, but if you had read the post, you would know that what you are addressing is not what OP is asking, saving you your time and effort.