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[Max] I need help! / CoronaPhysical Mtl & Physical Mtl Questions
« Last post by Jpjapers on Today at 17:21:21 »Recently ive been confused by a few things in the the Corona that over the years ive learned to live with.
couple of questions; For the attached example, Physical material is always on the left and corona on the right.
1. Why does inverting a map in the bitmap node result in a different output than if i invert it within a corona colour correct node?
2. Why do the same PBR maps connected to both a corona physical material and an autodesk physical material render differently to each other? Ive attached an example compariso_galv.jpg. On the left is a physical material, the right is a corona material. The physical material seems to be much greener. It seems corona assumes metals have an IOR of 2-3 because i had to set the physical material to 2.5 to get a close match. Is it just down to a different implementation of metalness?
Ive never really questioned these things before but just learned to live with them.
couple of questions; For the attached example, Physical material is always on the left and corona on the right.
1. Why does inverting a map in the bitmap node result in a different output than if i invert it within a corona colour correct node?
2. Why do the same PBR maps connected to both a corona physical material and an autodesk physical material render differently to each other? Ive attached an example compariso_galv.jpg. On the left is a physical material, the right is a corona material. The physical material seems to be much greener. It seems corona assumes metals have an IOR of 2-3 because i had to set the physical material to 2.5 to get a close match. Is it just down to a different implementation of metalness?
Ive never really questioned these things before but just learned to live with them.