you could try Unity recorder to export simulated joints as FBX, then reimport that back as baked animation. Rig your cloth with jointsAnimate the characterImport to Unity, setup cloth joints for simulationsim the animation, for several loops if it's a cycle, make it easier to loop the sim laterExport the Sim to FBXFix up…
It's fair bit of a hassle to sim in Unity and bake out to FBX. You need Recorder and FBX Exporter packages in the project add rigidbody and joint components in unity for Simulation, then record the sim to an animation clip; apply the recorded clip back to the character and then export the character as an FBX animation.…