3D rig of the Joker. The character should have a sinister, eerie appearance with a twisted smile and unsettling eyes. Ensure the rig includes fully articulated limbs, a flexible spine, and detailed facial expressions that convey a sense of menace and chaos. The character should wear a dark, tattered costume with elements that suggest a disturbed, clown-like figure. Highlight the textures that create a haunting and creepy look, and the character should be in an t-pose.