When Converting VRayBlendMtl to CoronaLayeredMtl the-Mtl: value need to be same as (.texmap_blend_multiplier) value in vrayblendmtland the.-Mask: value need to be taken from (.Blend) color value .for now its opposite !!so when converting we need to switch this values every time to get the same result !.i'm Using Corona 5 and Max 2020 but i think its the same behavior for all Corona Converter version .i attached Photo to explain this issue.Thanks in Advanced and Best Regards .