3D Model: Create A Detailed 3D Accessory Model Of An Ancient Underworld Winged Cape Inspired By Dark Fantasy RPG Style, Designed For Roblox Avatar Scale. The Cape Should Have A Long Tattered Fabric With A Dark Blackish-blue Base And Glowing Crimson Runes Engraved Across It. Attach Two Large Demonic Wings On The Back, Bone-like Structure With Torn, Semi-transparent Membranes, Slightly Curved Upward For A Menacing Silhouette. Add Chains And Ancient Metallic Ornaments Around The Shoulder Area, With Glowing Ember-like Effects Near The Joints. Ensure Low-poly Optimization For Roblox Studio Compatibility (under 10k Polygons), Clean UV Mapping, And Separate Material Slots For Wings, Cape, And Effects. Export-ready For Blender (FBX/OBJ) With PBR Textures (diffuse, Normal, Emission).