Shading – Day 0
So, as usual, I started playing with my blend while listening to @theluthier during the stream. Let’s go for our katana blade.
Small reference


There are some variations again in katana blade, even in the way they reflect light, sometimes based on specific treatment.
My aim for the blade is to have the cutting edge being shiny, and the back side being less shiny, with the intermediate part being somewhere in between.
I managed to do so by following Kent’s stream protocol and tweaking it for my own purpose. One of the main trick was to get the Color Ramp for roughness going from grey to black, without white step, otherwise I couldn’t get the result I wanted.

After that, my aim was to add those “lines” you can see on the first reference on the blade.
I added a bump, treated with a Musgrave texture extremely stretched with the scale setting of a Mapping node.
OFF

ON

As you can see, that’s where my poor texture kind of ruin it… But I may take some time to clear it at one point. (Not a lot of free time these days)
And that’s already it for me, it’s almost 10pm here in France and I’m up to bed. I’m pretty happy with this first go on the blade, I’m just disappointed that I could not get my texture done really nicely previously…