Grant Warwick advanced materials workflow in Vray for Modo + Scene files

[Muhammed_Hamed]

Hi,

Lesson 4 is free on Youtube. You can watch it here,
https://www.youtube.com/watch?v=hVbIhe2eDxc

Mastering CGI website,
masteringcgi.com.au

The video is a little old now,but it is still very useful. Here is the final render that I got following the video,



Notes,
-Grant used Ward BRDF beause GGX was not utilized in Vray at the time of recording this video. So,make sure you always use GGX BRDF for all kinds of materials you make!
-Instead of creating 2 coats on top of the base material to get the highlight bleeding in Glossiness and Specular components of the material you can use just the base material(With GGX BRDF) and use Vray layered texture(or Modo's blend node) in the Rglossiness slot,then using 3 Constant textures to achieve the exact same effect with one third of the render time! This is not the case in the file uploaded,just to make everything simple,so it matches exactly the steps of the video.
-In the new Vray 3.5 ,Use glossy frensel..you will not have to worry about layering anything for the Glossiness component of the shader!





Download scene file here,

https://drive.google.com/file/d/0B31...ew?usp=sharing

Best,
Muhammed

[boyan]

Hey Muhammed,

Appreciate your posts, keep running. We definitely need more examples and tutorials in MODO environment.

BR. Boyan

[Muhammed_Hamed]

Hey Muhammed,

Appreciate your posts, keep running. We definitely need more example and tutorials in MODO environment.

BR. Boyan

You are welcome!
More to come soon

[pixelsim]

Thanks for sharing this!
Its good to see how you have tackled the shader

Cheers
Simon

[Muhammed_Hamed]

Thanks for sharing this!
Its good to see how you have tackled the shader

Cheers
Simon

You are welcome ^^
I have finished all mastering Vray/lighting lessons and I will share project files here soon(when I have access to my main machine)

Best,
Muhammed

[rasskass]

Looks fantastic Muhammed!! I would love to learn how to use the schematics in modo with v-ray.

If you are interested in doing a small video tutorial showing the workflow I would be happy to buy it! Name the price

Well done!

[Muhammed_Hamed]

Thanks ^^
It would be fun to make a video about schematic in Vray for Modo. I will be making a video in the 2 days time about it hopefully as soon as I get to my workstation.

Best,
Muhammed

[rasskass]

That's amazing - Thanks alot! I look forward to lean the workflow

[spudboy]

This is great Muhammed, I had found the Layered texture in the Vray options and have started to use that but having your scene file to decode
is very helpful.

I look forward to your videos.

All the best

[peepo]

Hi Muhammed

Thanks for directing us to the Grant Warwick course. Just bought, and gone through the first video - great stuff!!!

[peepo]

...one question:

Grant advises not using the Fresnel value, but creating a reflection curve from data on refractiveindex.info - how do you do this in MODO?

Many thanks!

[peepo]

Is this right? - please see attached

[Muhammed_Hamed]

@Peepo

You are welcome
First of all,you don't need to use custom frensel curves all the time. Just use it when think it is necessary. Also,it would feel complex at first,but after sometime,it would be a lot of fun.
You are doing it almost right! The gradient texture is used to create custom frensel curves just like the output map that you see Grant uses in his tutorial. The workflow is even way better in Modo
Make sure frensel is turned off in the Vray material,then you should set your gradient to VMtl reflection color not glossiness as I can see in your screenshot.
Another thing,as Grant stated you should keep the shape of the curve like this,



or this



other than that,it is ready to go.
Take a look at my comment here where I talked about custom curves..It will help you a lot.

https://forums.chaosgroup.com/showth...s-for-modo-ray

and here is the plastic that Grant worked on while using refractive indes,





For Grant course,it will make huge difference on your entire workflow. Also,he did live streaming today,so keep an eye on his FB for events like this.
I should say that some stuff is old for the Vray course now and you should really skip. For example the first older lesson on sampling is out of date,watch the updated lesson. Also,techniques in lesson 2,4,7 are little different now,I explained in my comment in the post above. For lesson 3 .. you can skip it entirely
I saw your question about sampling,I recommend Grant Warwick technique in the updated lesson,not the techniques used by Richard Yacht. I have never touched the material/lights samples what so ever since the new 3.3 update for Vray. I will talk to you about this in the your other post about render settings.

Best,
Muhammed

[Muhammed_Hamed]

This is great Muhammed, I had found the Layered texture in the Vray options and have started to use that but having your scene file to decode
is very helpful.

I look forward to your videos.

All the best

You are welcome

[peepo]

Thanks Muhammed!

I've found the updated file here, and am watching right now: https://vimeo.com/167603476

Thanks you for the screenshots of the plastic material - very helpful! I can see that I'm going to have to learn how to do schematic materials....