glowing energy orb 3d model

Create a high-quality 3D fantasy energy orb with a built-in glowing animation. The orb should pulse with light, expanding and contracting like a heartbeat. Use a smooth crystal or glass-like material with an internal volumetric glow. Color: electric blue or cyan. Add bright runic cracks on the surface that glow and pulse with the same rhythm. Include subtle floating particles and a soft energy aura around the orb. Make the orb rotate slowly while glowing. The animation should be a seamless loop: glow intensifies → expands slightly → fades → returns. Style: AAA fantasy action game, Unreal Engine 5 quality, clean PBR textures, optimized mesh, clean UVs. Output the animated orb as a single object with a looping glow animation.