Tutorial: Procedural RUST EFFECT

[JonasNöll]

Hi,

this is a tutorial about how to create a Rust Effect that with the help of procedurally generated masking techniques can be applied to any kind of geometry regardless of it's UV's. Hope you like it

[dean_dmoo]

Thnx, will take a look.

Was updating our library today so hopefully there are some new techniques to try

[JonasNöll]

Thnx, will take a look.

Was updating our library today so hopefully there are some new techniques to try

Great, let me know pls or tell me which other toppic you would like to have covered

[dean_dmoo]

Just watching it, it actually reminded me to try the new vray dirt leaks map....completely forgot about it today and made a custom map instead..

Gonna watch the studio one aswell.

[piotrus3333]

my three cents:
use VRayBitmap not Bitmap from Max
color with mask within Composite is just a map. why complicate it with mask?
consider VRayCompTex. computes way faster than Composite.

[JonasNöll]

Hey thx for your feedback Those are fair points.
1. VRayBitmap: Agreed, its mainly old habbit and the fact that my asset library plugin doesn't support V-Ray Bitmap.
2. Thats true, I could also just stack the masks, AO on top of each other and then blend them with screen or multiply. I just felt for the tutorial its maybe simpler to not go into blending modes and just either generate black or white parts in the blending mask.
3. CompTex, that's where we probably disagree. I never use it because its use is so limited in use and to add a couple of layers you need to build a huge node tree which is not worth the most likely maginal increase in computing time.

[Karol.Osinski]

Thanks JonasNöll ! I always enjoy watching your tutorials

[squintnic]

dont use composite maps - very slow
use comptex

[JonasNöll]

dont use composite maps - very slow
use comptex

Can't agree in this case, sorry. I just recreated the same thing with VRayCompTex. 0% difference in terms of rendering and computing time. Additionally much more dedious to set up as it only supports 1 operation at a time. No masks. Limited blending modes.

I don't have anything agains VRayCompTex in general and I agree that if you are doing very complex operations there will be cases where you will notice a speed improvement. I did anyother test blending 4x 16k HDRI together. It is possible to measure a difference.
But unless you are doing these kind of operations, (so maybe 95% of the times) you will not notice any considerable difference and that's why (in 95% of the cases) I would not recommend to use it.
I most definitely would not recommend building every simple multilayer mask with a much more complicated and limited VRayCompTex Setup. But hey, you can do as you like