This is a 3D representation of the shield of Achilles as described by Homer in the Iliad. Every element of the design has been based on extensive research into bronze age Greek art.
I modeled the shield in 3Ds Max. For the texture, I first hand painted several high resolution alpha maps in Photoshop, one for each material which has been used to decorate the shield (bronze, tin, gold, silver, enamel). I then created some PBR materials in Substance Designer, and applied them using Substance Painter. The rendering was done in Marmoset 4.
Video depicting the designs of the shield, accompanied by Homer's complete description.