Help to create metal texture

[Fortune_Lime]

Hi

I'm sure this should be simple but could anyone please give some advice on creating a metal texture and what method to use e.g. change base colour, add a clearcoat or create layered material?

The finish is Satin Gunmetal. The part starts as a brushed/grained stainless steel and then a dye is applied on top to modify the colour. I

Would really appreciate any advice that can be given on this. Thanks!

[Avi]

have you tried finding something similar in Cosmos? Is there any reference to better understand what you are looking for?

[burnin]

Note: In such cases, visual reference is fundamental (a must).
Also, you could ask AI ;)

[Fortune_Lime]

Hi Avi / Burnin

Thanks both for the reply - to be honest, I did have some references attached before which I've now re-attached. I was trying to remove the post because I felt a bit silly about not being able to do something simple like this.....

I have access to Siger shaders so my thought was to use the Stainless Steel Satin texture as a base and then just modify the base and edge colours but don't know if this would be the correct approach or if there is a better method? The material setup image is using clear coat to modify colour at the moment.

Thanks

[Avi]

what you are doing is correct. Right now you are using a bitmap...if you want a little more control then you can also use uber OSL noise with UVW transform to create the same brushed look. Both approach is good as long as you are getting your desired results. It all depends on how close the camera is going to be and how much detail you actually need.

[Fortune_Lime]

Thanks for your reply Avi - the result I have managed to get is close to the actual part just using the clear coat parameters.

Didn't know that about the OSL Noise so I will test that out too as could be useful for future works. Thanks for the advice! The final images will be a mixture of close up and distance shots too so again this could be useful.

Presumably I'd plug the noise map into both base roughness and bump?

Thanks again!

[Avi]

Yes, correct you can use noise on both roughness and bump....I will advise to use the mix node with your noise and then use it in roughness so you can control its overall effect on reflectivity. You can also turn down its effect from the maps section as well. It will take a bit trial and error to achieve what you are going for but overall this is the way. You can further use some layered shader to addsome subtle dirt, dust and grunge effect but if its a product shoot then you would not want to do this for a cleaner look so it all comes down what you want to achieve. :)

[Fortune_Lime]

Appreciate the detailed advice. Literally just playing with the OSL Noise now and I used a colour correct to control the roughness but I think your approach is better. Ordinarily I would also try to add some dirt etc but as you mention, for a product shoot then it has to be clean.

Getting on track with this now and and will run some further tests but you're advice is/has been greatly appreciated.

Thanks