light and material study

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Fletch
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Re: NPR Render

Post by Fletch » Mon Oct 04, 2010 5:37 pm

2min render time on Easy 03 Low+ :!: ;)

This is with all Studio Light Spots turned OFF in the scene.
Only HDR lighting with settings as shown below.

Even if it takes you 4.5mins, I'd still say it's quite a good render time... and nice render. :halo:

takes 4.5mins on High setting on this machine.
Attachments
2m01s-Easy03Low+_perfectreflectionlibrary+HDRstudio.jpg
2m01s-Easy03Low+_perfectreflectionlibrary+HDRstudio.jpg (119.23 KiB) Viewed 13400 times
4m35s-06 High-HDRstudio.jpg
4m35s-06 High-HDRstudio.jpg (90.87 KiB) Viewed 13496 times

JeZ
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Re: light and material study

Post by JeZ » Wed Oct 06, 2010 4:45 pm

Hey guys,
Heres a new render of one of my previous models.

Kinda cheesy, but I still like it :D

Cheers.

Jerome
Attachments
buffet5 other hdri.png
buffet5 other hdri.png (228.82 KiB) Viewed 13372 times

Fletch
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Re: light and material study

Post by Fletch » Wed Oct 06, 2010 10:25 pm

:^: That's a "keeper". I really like the floor reflection, and it describes really well your intended "look" of the piece. It's excellent work, beginning to end.

Which render setting? (curiosity)

JeZ
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Re: light and material study

Post by JeZ » Wed Oct 06, 2010 10:50 pm

I dont remember... easy 9 or 10.

With a very small bloom effect and little less vibrance It looks great!

I need more skill in photo editing... :x


Fletch, how would you do to get some reflection or highlights on the white doors? Should I add a spotlight?

Thanks.

Fletch
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Re: light and material study

Post by Fletch » Wed Oct 06, 2010 11:25 pm

needs a more directional light, because they are white and reflective, adding light would not likely help (but who's to say?). a dark surface for the angles pointing left, and a light surface for the angles pointing right may work. (or just some quick highlights in photoshop could work fastest and gives ultimate control)

or just try diff. exposure or diff. HDR

also using a black and white line export from su and blurring it to create a sort of fake ambient occlusion may work nicely. see example here.

JeZ
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Re: light and material study

Post by JeZ » Sat Oct 09, 2010 10:33 pm

New test.

I am trying to do a white oak top on a brushed stainless steel frame.

Does it look like what it is supposed to be?

Cheers.

Jerome
Attachments
Straight out of Twilight
Straight out of Twilight
table.png (224.35 KiB) Viewed 13305 times

Fletch
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Re: light and material study

Post by Fletch » Sat Oct 09, 2010 11:40 pm

it does to me. :totgm:
but if you have a photo of something you are trying to match, it would help.

regardless, one thing that will improve renderings greatly and is easy to do, you will notice in product photography that they will have a dark to light gradient on the background, this helps highlight the product.
example here:
gradient-productshot.jpg
gradient-productshot.jpg (34.02 KiB) Viewed 13297 times
A vase or something simple decorative sculpture on the table to provide a little "something" could be an idea?
Or a more detailed vignette of a corner or something inlaid on this view?

fantastic video tutorial! :arrow: Check out these backgrounds behind the models.

JeZ
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Re: light and material study

Post by JeZ » Sun Oct 10, 2010 12:00 am

Hey Fletch,
well... I dont think it is the background... I was trying to achieve that high-keyish look.

I think I have a problem with my brushed metal mat. It looks like some kind of silver powder coating. :?

It is probably again related to the lighting... :wall:

Anyway, I am trying something else, I'll post the result.

Cheers.

Fletch
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Re: light and material study

Post by Fletch » Sun Oct 10, 2010 12:17 am

metal is extremely sensitive to what it's reflecting.

JeZ
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Re: light and material study

Post by JeZ » Sun Oct 10, 2010 4:54 pm

Finally I tried another hdri sky and its rendering now. I think it will be better.

I am wondering now what is the difference between the metal and brushed metal template.

I am guessing that the brushed metal template has more blurry reflection, is that right?


I tried many different stainless steel mat setting and tried to compare my results with actual steel. I think the most important things are:

1- blurry, but at the same time rather hard, reflections.
2- diffuse color.

Unless it is a very close detail, theres no brush lines visible. So if the brushed metal can take care of the blurry reflections, I think theres no reason to use a bump map.

Anyway, I'll post soon a new render.

Cheers.

Jerome

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