bmikiwer

Thank you! Just wanted to point out that in your "Else" statement, it should be: Ns = sqrt(value-5) * 2.5; if I'm not mistaken. But it appears to be working perfectly. I did modify this a bit since I need the values between 0 and 1 and in reverse. This function is written in Python if anyone is wondering. def ironNs(value): ----if value --------ns = 1.0 ----elif value > 1605.0: --------ns = 0.0 ----else: --------ns = 1.0 - (sqrt(value - 5) * 0.025) ----return ns Also, thank the developer!

Does it not work like it's supposed to? Thanks for having a look!

I'm trying to make sense of the 'Ns' values I get when exporting a model(.obj) from IronCAD. 11 Cylinders, Highlight spread from 0 - 100 (0, 10, 20, 30, ...) gets me a .mtl file with these 'Ns' values: 5, 21, 69, 149, 261, 405, 581, 789, 1029, 1301, 1605 I've read that the 'Ns' values usually are between 0 and 1000. First I thought these values were exponential but I believe them to be quadratic. Is there a mathematic function that will convert these values to linear values between 0 - 100 or 0 - 1000? Example: If a material get's a 'Ns' value of 681 how would I know how much Highlight Spread that material has?