When airbrushing a full size cosplay prop of a magic sword that is gradated from near black in the middle (centerline of the sword) to near pure white at the edge (Blade of the sword), with blue and purple tones in between, what is the best order to lay down the paint?
For example should I put down a white base coat, and then apply the lighter tones first, before finishing up with the darkest ones. Or should I put down a black base coast and then apply the lighter tones until I get to the white edge?
Or any other order.
I don't have a picture available, but imagine a regular sword that's just been taken out of a blacksmith's forge and is white hot at the edges. But in blue.