Author Topic: Juraj's Renderings thread  (Read 486898 times)

2018-10-24, 11:38:11
Reply #615

RaidoViz

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Light often is about experimentation :- ). There is method to the madness (having a vision and reference, knowledge of certain setups,etc..) but ultimately, it might come by accident or try out method.

Have you read my article ? I do touch upon some of this. I will have more practical workshop into this in Mexico city next week and perhaps I will try to find time and distill that into something later.

http://www.cgarchitect.com/2017/12/business-in-arch-viz-vol-10---finding-your-look

Thanks very much for the reply and link.

It's much appreciated.
Will keenly look forward to the distilled info :)

Regards.

2018-10-25, 10:11:41
Reply #616

Juraj

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No it's far simpler. It has fallof curve in diffuse slot that sort of looks like IOR 1.6, it goes for 70perc. near zero, then it goes up but plateaus again for the last 10perc, which is the angle at which we see the sofa "above".
Then instead of mixing black and white in as masks for bright and darker texture, the white mask uses a texture instead.
It's heavy scene that I can't open right now so I'll post that later but hope this describes it.

Hey Juraj, going crazy trying to replicate the effect you got on that sofa. Any chance for a more indepth help :) ? Post 258, page 18 of this thread.

I must have posted the break-down of that material somewhere :- ). I will look into it. Or recreate it again and post screenshot.

But the key is that the fallof is masked with velvet texture (as B&W texture mask) in composite node.

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2018-11-06, 10:06:28
Reply #617

Razzow

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Juraj i know you do alot of interior shots, but do you have any tips for a realistic asphalt tutorial in corona?

2018-11-06, 11:12:06
Reply #618

Juraj

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Here are few that come to my mind:

1) The base textures need to be very good in terms of visual detail (photoscanned), coverage (3x3m+) and resolution. For example https://www.textures.com/download/3dscans0116/132148 or https://www.friendlyshade.com/product/road-asphalt/
     This is much better than the badly tiled 1x1 (it's not even that) Megascan ones. Even 3x3 or 4x4m is often not enough, but you can mix this in procedural noise for potentially endless tiling.

2) The shader has to be good. With Dubcat we found that PBR only approach doesn't work 100perc. in Corona (or any engine yet). You should really only need normal map for the detail to come across, but often only displacement will do that. So to compensate, use AO map in Specular slot or generate IOR map (see Dubcat's tutorial). I only use AO map (in fallof) as it is quick.

3) Variation is key. Mixing different asphalt elements, imperfections, etc... either procedurally or with something like Megascan Mixer (or both !) will give the lifelike natural organic detail we see in reality. Bertrand Benoit has good tutorial on his blog when he did that Tokyo personal project.
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2018-11-06, 19:35:23
Reply #619

mferster

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Like Juraj mentioned Bertrand's tutorial is quite good; obviously its made with vray but the concepts are universal.

http://bertrand-benoit.com/blog/nakagin-photoreal-road-tutorial/

2018-11-07, 13:30:07
Reply #620

Razzow

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2019-01-23, 21:03:47
Reply #621

Buzzz

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Hi Juraj,

I have a question for you.

In this link: https://forum.corona-renderer.com/index.php?topic=999.405

The first image, what is the lighting?

Hdri or sun + enviroment?

Is the same light for this exterior? https://forum.corona-renderer.com/index.php?topic=999.240

Yours works are awesome, congratulation!

Thank you!

2019-01-28, 14:48:32
Reply #622

Juraj

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Hi Juraj,
I have a question for you.
In this link: https://forum.corona-renderer.com/index.php?topic=999.405
The first image, what is the lighting?
Hdri or sun + enviroment?
Is the same light for this exterior? https://forum.corona-renderer.com/index.php?topic=999.240

Yours works are awesome, congratulation!
Thank you!

Hi Buzzz, in the end, all the images ended up being Sun&Sky, except that one exterior which was some sunny HDRi from CG-Source, although perhaps I corrected it slightly (boosted Sun).
The correct looking HDRi ended up being almost identical to Sun&Sky, except the flexibility so there was no point to use it for this particular setting.
Please follow my new Instagram for latest projects, tips&tricks, short video tutorials and free models
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2019-01-28, 15:53:03
Reply #623

Buzzz

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2019-01-29, 01:57:13
Reply #624

cjwidd

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where can I find the .pdf documents alluded to in the post title?

2019-04-22, 18:24:58
Reply #625

husherson2

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where can I find the .pdf documents alluded to in the post title?

These attached where the ones that Juraj posted somewhere here and the files that I have saved on my HD.
If there's something new, he's the only one that might be able to share this. 

2019-04-25, 10:25:38
Reply #626

Juraj

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Yeah the names allude to my workshop from 6 +/- years ago I think, and it's those Husherson2 posted (thanks!).  I believe all the info in them still stands but I have made since then more material but one that needs comments alongside to explain. I might be able to rework them into something possible to publish independently of any workshop.

Still, my best piece of advice is all in the CGArchitect article, even though it lacks more practical examples that I show in workshops.
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2019-06-07, 08:56:06
Reply #627

orion

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Hello Juraj!,

Firstly thank you for helping me to building my first good workstation 2990wx-it s working and i love it, i would ask for your advice, we are 2 designers now working and sharing our folders through windows shared folder, i was thinking about a freenas server our a synology nas to get all our daya in one place and use to back up our data in the NAS & in an external HDD also

Can you give me any advice , path to follow ?

Thank you

2019-06-07, 21:29:19
Reply #628

Juraj

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Hey Orion, gave you answer in the Hardware section.
Please follow my new Instagram for latest projects, tips&tricks, short video tutorials and free models
Behance  Probably best updated portfolio of my work
lysfaere.com Please check the new stuff!

2019-06-19, 20:09:40
Reply #629

Juraj

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I've posted a project that was under NDA for two years, since 2017 and was finally given go recently to show. I lack the energy to post it to this forum yet, even uploading it properly and saving correct resolutions for Behance drained me a bit.
So here's a link until then:

http://bit.ly/LeinsterW2




Please follow my new Instagram for latest projects, tips&tricks, short video tutorials and free models
Behance  Probably best updated portfolio of my work
lysfaere.com Please check the new stuff!