Hi Andrey,
Hope you can help, my ultimate goal is to use a custom output curve in the falloff map to control material IOR.
I have two reasons for wanting to do this, number one to dial in true physically accurate IOR curves for different materials and secondly to create unique effects (say for example weld discoloration).
My question is how do I turn off the falloff map preset so that the output curve takes over and does not just multiply over the presets. I tried setting falloff IOR to 0 to flatten the curve but this did not work in my tests.
I believe in Vray and Corona by activating the output curve map in the falloff map it deactivates the falloff preset by default??
With both those two engines you are also required to dial in 999 (or something along those lines) in the IOR to deactivate material base IOR before putting a map in.
I also noticed that a falloff map with IOR 1.5 assigned to the IOR map does not create the same IOR as a material with 1.5 IOR in the material settings.
I have attached images to explain, I did try to dial IOR up to 999 to deactivate the material setting as with Corona but to no success.
Many thanks!!
Hope you can help, my ultimate goal is to use a custom output curve in the falloff map to control material IOR.
I have two reasons for wanting to do this, number one to dial in true physically accurate IOR curves for different materials and secondly to create unique effects (say for example weld discoloration).
My question is how do I turn off the falloff map preset so that the output curve takes over and does not just multiply over the presets. I tried setting falloff IOR to 0 to flatten the curve but this did not work in my tests.
I believe in Vray and Corona by activating the output curve map in the falloff map it deactivates the falloff preset by default??
With both those two engines you are also required to dial in 999 (or something along those lines) in the IOR to deactivate material base IOR before putting a map in.
I also noticed that a falloff map with IOR 1.5 assigned to the IOR map does not create the same IOR as a material with 1.5 IOR in the material settings.
I have attached images to explain, I did try to dial IOR up to 999 to deactivate the material setting as with Corona but to no success.
Many thanks!!
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