dirt (streaks) like vray 5

[prince_jr]

hi all
i just watched a video on youtube about vray 5 and dirt map...

most of my 3d-work is architecture. dirty concrete is something i use regularely, especially making dirt steaks. at the moment i always end up to add them in photoshop manually.
i'm aware of "ambient occlusion" as a solution, but it is just not the same. vray dirt seems to be much more powerful and realistic.

question to the developers:
are there any thoughts about implementing this feature in the future?
when can we expect something similar in corona renderer to get same results?

thanks in advance & stay safe/healthy

[romullus]

I think it's nothing more than procedural noise map built-in into AO/dirt shader. It's perfectly possible to achieve the same effect with CoronaAO.

[Jpjapers]

Would be even better if corona had a raytracing API and we could finally have richdirt support :)

[prince_jr]

okay...thanks for the hint, romullus!
i gave it another try. it look okay. surely need to fine tune the settings.
but i'm still struggeling with a specific thing > still having parts, where ambient occlusion shouldn't be applied (see attached image).

by the way...i'm a c4d user. ;o)

[prince_jr]

@Jpjapers that's for our input! this plugin looks amazing.
but here we go again...no support for cinema 4d at all. :o( cinema 4d is really a downside, when it comes to plugin support.

[romullus]

i gave it another try. it look okay. surely need to fine tune the settings.
but i'm still struggeling with a specific thing > still having parts, where ambient occlusion shouldn't be applied (see attached image).

Try to increase ray directionality - it should help with those problematic corners. Also you can play with colour spread. One last thing to try - plug Corona colour correct between AO and material and tweak its curves to achieve desired look of the streaks.

by the way...i'm a c4d user. ;o)

I noticed, but this shouldn't be a problem, as long as C4D has some procedural noise map :]

[Jpjapers]

Welp. I was in the wrong help boards. Thought this was in Max.
As you were!

[prince_jr]

another test...quite happy with the result. :o)

[leo3d]

Hello could you share your Node Materiel

Thx

[prince_jr]

Hello could you share your Node Materiel

Thx

@leo3d see attached image. basically i did what @romullus said.