All posts related to V2
User avatar
By eric nixon
#370334
He said retroreflective, not reflector.

here is a retroreflective attempt;

Image

There are two geo's inner object is a rough shiny metal, OUTER OBJECT HAS SSS, low nd (1.15), high coef (90000), high POSITIVE assymetry (0.85)
User avatar
By eric nixon
#370338
Is wikipedia wrong :wink:

Well, maybe the correct term is not retroreflective.. But thats the effect he wants..

Anyway I forgive you :wink:
User avatar
By tom
#370339
Why do you think he doesn't mean retroreflective but something else?
User avatar
By eric nixon
#370341
Image

I was thinking that sss with positive assymetry could give this effect;

Now I see that they are the same thing., you were right... :oops: but do you mean to say that a normal map can do it? I mean the SSS way seems to work?
User avatar
By eric nixon
#370343
I tried it with 2 geo's and a normal map, and no sss, it appears to work, but only with HDRI not emitters.

render was 5min to sl18.. needs a better normal map.

Image

Now I know the sss render is nonsense, sorry about that, I did it a long time ago, thanks Tom, I've learnt something,.... cant wait to test the new maxwell...
By andyjacobs
#370349
Thanks for the suggestions.

- Tom sorry I did a search for reflective not reflector. My bad.

I'm yet to model the object and try myself. I have a request from a client and was wondering if anyone had achieved it yet. Ill try today and let you know how I get on.
By andyjacobs
#370356
Hi Eric,

Thanks for your suggestions. I think that would be the right approach if I was trying to model an object like this


Image


But Im looking to have it as a detail on an item of clothing so more similar to the link I posted previously.

Image

I like your mirror layer with the reflection being bright at 0º and dark at 90º I had a play with that really quickly today and its not bad.

ImageImage





I think the easiest would be if there were some way to fake it with a material that had an emitter as the 0º colour and dark on the 90º I tried a few things with emitter layer combined with the mirror layers in different strengths, but wasn't able to produce anything convincing.
User avatar
By Mihai
#370361
Are you sure that picture is not exaggerated in any way, what exactly are they reflecting so strongly? Is it a big emitter behind the camera? It's not like they can emit more light than they receive.....
User avatar
By eric nixon
#370367
Andy, I think the effect is the same but at different scales, even the fine fabric retroreflect is effectively a LENS on the outer surface.. This is needed to achieve the effect of light coming back out from the direction it went in - (think cats-eyes).
User avatar
By tom
#370369
It's quite hard to simulate this material accurately using normal/bump mapping. Ideally, it requires to be modeled accurately down to the microns or needs a dedicated shader.
Maxwell Render training

np. tutaj: https://www.youtube.com/watch?v=Xo0Q8l[…]

Maybe start a fresh file and create some new AGS g[…]

ilgioma - Gallery

Sexy!! as always! Great job!!

Maxwell missing 3d viewports

I think the key may be not working, but there are […]