Tymeshblend shadows smoothing problem

[HHbomb]

Hi, I tried Tymeshblend ( tyflow ) and I have shadows smoothing problem. ( left render , right screen )

EDIT : it seems that other renderer get same problem ( so perhaps not octane related )

TYFLOW response is :
Shadow computation is up to renderers - I have no control over it. All tyMeshBlend does it adjust explicit normals. If you are seeing render artifacts, you'd need to reach out to the devs of whatever renderer you're using.