Lego Shading Made Easy: Harness the Power of Flexibility and Python Control with ChatGPT and Arnold

ChatGPT demonstrates how to create and control flexible shaders in Maya Arnold using Python, providing a comprehensive guide for mastering the shading workflow
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In this video, I demonstrate how to create flexible shaders in Maya Arnold and control them using Python. I guide you step by step, using ChatGPT's expertise, through the process of building custom shaders that can be easily modified and adapted to different scenarios. By the end of this video, you'll have a solid understanding of how to create and control shaders in Maya Arnold with the help of Python and ChatGPT
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[@arvidurs]

Join the Lego Challenge on the CG LOUNGE discord.gg/z35NUgV

[@mvfx500]

Interesting short video using ChatGPT for python code generation. Thanks Arvid and keep going!

[@khb9199]

you know what? It's scary. Now free AI become senior artist higher than me

[@derpherp7432]

Hundreds of millions or maybe even billons of people are going to have their lives, careers, and futures absolutely obliterated by AI. It makes it hard to use without feeling revulsion for it.

[@ilirk.2080]

​@@derpherp7432 someone has to define and specify the requirements in whatever case I suppose. So let's try to see it as a chance and not as a risk. ;-)

[@derpherp7432]

@@ilirk.2080 At the end of the day, it's a unprecedented transfer of wealth from the working class to silicon valley and a bunch of ghoulish subhuman tech bros. I don't have much optimism for the future.

[@a_1236]

I work as a Photoshop retoucher and currently there is job opening for retouching for AI training. The pay is good and retouchers are happy to do retouching work for machine learning. So I think artists themselves are the culprit.

[@eat120mm]

a few generations of career field shifts, or oh dear god maybe even some form of reimbursement, considering as how all those lives and careers are being destroyed by things you don't have to pay, give sick days, vacation days. Its an opportunity do distribute wealth, reduce menial labour, expand our minds with more free time. But nope the rich gonna hoover up every cent of wages they dont have to pay anymore.@@derpherp7432

[@haaake]

You don't actually need to convert to fbx before bringing the .dae into Maya, the FBX importer in Maya will do all that.

[@arvidurs]

its a remnant of my houdini worklfow. but thanks for pointing that out!

[@3dvfxprofessor]

Yes, but then the shader convert will not work properly. All Arnold nodes look correct in Hypershade but will render a black material. I could not find out the reason yet.

[@3dvfxprofessor]

Damn, Arvid. This is absolutely insane. Fuck my CGI life. 🙂 ChatGPT-4 is doing all this without errors. I added a RouncedCorners shader: "And please write a Maya python script that adds a aiRoundCorners node, set the Radius attribute to 0.03, and connects the Out Value of this node to the Normal Camera input of all material nodes."

[@darrenlyons4026]

you said please! :D

[@quantinglin2655]

Hi,do you know how to use Maya's Arnold to render the character Wade Ripple in the movie "Elemental"? If possible, could you teach me, thank you teacher!

[@0291gabriel]

Nice !!!!

[@3dvfxprofessor]

Nice! When I convert all materials I will get Arnold shaders with the right Base colors but it's all black in the viewport and render view. Any ideas why?

[@3dvfxprofessor]

OK, it's the Collada format. Something is different. With FBX it works. I need to investigate the reason.

[@JohnDowson100]

Hi Arvid. Why would you change the SSS Radius to match the base color? I understand doing it for the SSS Color but why for the Radius?

[@arvidurs]

Normally what I do, that I didn't show in this scope of the video, is to retain the same hue in the radius, but at 20% saturation of the original color. Hue stays where it is, Saturation goes down to 20 percent and the value goes to 1. The reason is that you still want to have some kind of original color in the sss transmission color. I keep value at 1, so I can control the ray travel depth with the scale

[@JohnDowson100]

@@arvidurs Got it :)