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hyltom
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PostPosted: Mon Oct 22, 2007 3:12 am 
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mverta wrote:
Hyltom -

Actually, if you change all those things, you probably won't "notice" anything - that's the point. I just wanted you to know you were spending energy/time tweaking parameters that didn't have much effect, so you can work a bit faster and more intuitively, that's all.

_Mike


You are right, but my problem is that i don't know so much what setting do what, so it's more like some experimentation (no real rule...just the bases), so for sure i waste of time. Lucky for me i don't have to generate a lot of material. :oops:...and maybe i'm kind of obsessive compulsive person :wink: :D

Here is a picture to compare both material
Image

New floor material, base on Mike's adjustment
http://www.divshare.com/download/2439887-412

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mverta
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PostPosted: Mon Oct 22, 2007 5:43 am 
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In my material video #2, I actually go over the relationships between reflectance/roughness and nd in detail, if you want to really understand how those things affect each other!

_Mike

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bjorn.syse
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PostPosted: Wed Oct 24, 2007 2:58 pm 

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Hyltom,

don't you ever use any other emitters when using this setup? I find the light taking out much of the detail and bump. I wonder if a front emitter would solve that by adding some reflections/highlights... ?

- björn

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hyltom
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PostPosted: Thu Oct 25, 2007 2:59 am 
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No i don't...well not when i was using this kind of setup. But as you, i also notice that this setup flatten the product, it's why i don't use it anymore. A front emitter will definitely bring more contrast, highlights...
Also, if you are interested, i have others versions of the home made LDR with different lighting setup...but i' m not sure all can give the white background.

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bjorn.syse
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PostPosted: Thu Oct 25, 2007 8:36 am 

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I'm very much interested. I havent tried using images for lighting until now, but what i see I like. Soo easy to setup now with the new Rhino plugin aswell.

- Björn

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martgreg
PostPosted: Thu Oct 25, 2007 8:42 am 

Joined: Tue Oct 04, 2005 5:44 am
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I would love to see you set ups.. the thing with me is even though i am getting better its still sometimes hit and miss if the scene looks good.. very frustrating so if i can see other peoples i can see if i am at least on the right path...



thanks :oops:
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hyltom
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PostPosted: Thu Oct 25, 2007 9:28 am 
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For those interesting, I 'm sharing some more LDR in this post

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Mihai
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PostPosted: Thu Oct 25, 2007 2:58 pm 
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Personally it has helped me a lot to just look at photography sites and see how they lit different scenes. It's surprising sometimes how simple a setup is, the key is getting the size of the emitter (or softbox in their case) right and it's distance from the object. Most of the info you find can be directly applied in Maxwell.

www.strobist.com
http://www.photoflexlightingschool.com/ ... index.html

etc... :)

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bjorn.syse
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PostPosted: Fri Oct 26, 2007 10:01 am 

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Thanks Mihai. Good links. Here's my go at your setup Hyltom:


Image
- Björn

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Calico Jack
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PostPosted: Fri Oct 26, 2007 10:49 pm 
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BTW.. I started while ago a new topic(http://www.maxwellrender.com/forum/viewtopic.php?t=25067)at Wish List.
I know that many clients want those white images from their products and it's been quite complex to make those with MR.. well vignetting helped a little but it's still quite tricky. Can it be so hard to put that option in MR.. I don't know. But I do know that IT COULD BE VERY USEFULL!!! :twisted:

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giacob
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PostPosted: Fri Oct 26, 2007 10:56 pm 

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very usefull thread.... would be nice if all the people who knows good phototgraphy site would share it as Mihai kindly did

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hyltom
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PostPosted: Sat Oct 27, 2007 2:14 am 
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bjorn.syse wrote:
Thanks Mihai. Good links. Here's my go at your setup Hyltom:


Image
- Björn


Looks good to me...maybe try to decrease the shutter speed a little bit more to get the white background

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bjorn.syse
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PostPosted: Mon Oct 29, 2007 10:31 am 

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yep, good point. Might loose the top of the cube though..

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w i l l
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PostPosted: Tue Nov 20, 2007 7:56 pm 
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hyltom wrote:
As i said, i used this lighting setup few month ago, so i was not sure i could remember it exactly...so i tried it again few minutes ago (just by following what i say above)....and i' m not that far.
Image
This is 10mn rendering (SL 13), burn 0.8, gamma 2.2. I just changed the shutter to 7 (not 4) as the product is smaller.

Oh and i forget to mention that there is no postwork and the background looks pretty white :wink:

Image


I'm assuming your studio curves upwards vertically at the back here (as the shot is low and with that kind of shot you'd see black where a horizontal ground pane finishes) - so how does the LDR emit onto the back of the product when there's a studio in the way?

... or is there no vertical part to the studio and just a massive emmiter or LDR at the back?

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hyltom
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PostPosted: Wed Nov 21, 2007 4:59 pm 
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w i l l wrote:
I'm assuming your studio curves upwards vertically at the back here (as the shot is low and with that kind of shot you'd see black where a horizontal ground pane finishes) - so how does the LDR emit onto the back of the product when there's a studio in the way?

... or is there no vertical part to the studio and just a massive emmiter or LDR at the back?


The studio is composed of 1 basic plane for the floor. There is no wall behind the product. If the background look white, it's because of the LDR that emit at the back of the product. Then the floor reflect the light of the emitter so it looks white too.

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