3ds Max radial metal texture

Purge117

Hi guys,
I am trying to model and texture Captain America's shield to use as a demo for a class. I am trying to get a realistic radial reflective texture similar to this -



I have tried creating a radial texture in photoshop and applying this but it seems to give a very noisy result.
Any advice or tips on this would be hugely appreciated.

(BTW, first post so be kind please :P)

Thanks,
Rob

illo

take a look at anisotropic reflections

Purge117

I've read a bit on them but I cant see a way to get the highlights to randomly carry slightly (noticable on the 2nd ring from the edge) and have this material style only on the metal and not the paint (As you can tell i usually try to avoid texturing etc)

Any ideas?

Mark Dygert

You could unwrap the rings to be flat and then tile them horizontally. That way the metal pattern is horizontal not radial, it might be easier to work on.

The paint/metal could be done with two separate materials and then use a mask to blend them but really that's just using a bunch of technical junk to get around creating proper materials with standard, diffuse, spec, normal maps techniques.

If you where using something like unreal4 or CryEngine3 there are some really great material tools that make great, reflective metal.

Purge117

Mark Dygert wrote: »

You could unwrap the rings to be flat and then tile them horizontally. That way the metal pattern is horizontal not radial, it might be easier to work on.

The paint/metal could be done with two separate materials and then use a mask to blend them but really that's just using a bunch of technical junk to get around creating proper materials with standard, diffuse, spec, normal maps techniques.

If you where using something like unreal4 or CryEngine3 there are some really great material tools that make great, reflective metal.

The unwrapping thing would work perfectly I will give that a try if my current texture does not work. With regards to game engines, I have just started teaching the class and they are still at the stage of getting used to the various editing tools, and they were wanting to make this as a cinematic piece instead of a game piece (just as well with a poly count of over 250,000 when turbosmoothed)

Thanks for the tip I will let you know how it goes.

iconoplast

Here's a really easy way to get a basic circular grayscale map for that type of metal:

Go in photoshop, have an otherwise empty white document, and use the "Add Noise" filter. Make is somewhere around 150%, Gaussian distribution, and monochromatic. Then run a "Radial Blur" filter on it -- I tend to get good results going for an amount of 25 and Quality: Best. Make sure the blur method is set to spin. To get a softer look, run the radial blur twice. (Of course, you'll want to do these as smart filters if you want the ability to go back and do fast tweaks on it later.) This gets you the fairly random distribution of lines and can also be used as a layer over other things as needed (with various blend modes as needed).

Eric Chadwick

This might help you. A good resource if you're teaching.
http://www.neilblevins.com/cg_education/aniso_ref_cg/aniso_ref_cg.htm