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re-rending some old work
show user profile  rob@dynamic
Hi all,

I've been using vray for a few months now, and starting to feel comfortable with it. So I've decided to go back and re-render some of my first vray scenes and improve them.

Here's what I've got from today. Totally re-did materials, lighting and rendering.

Still getting some 'noise' issues. Below are my settings too, if anyone has any tips on reducing the noise I'd really appreciate it. Thanks


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read 590 times
9/24/2012 3:37:37 PM (last edit: 9/24/2012 3:37:37 PM)
show user profile  rob@dynamic
The main noise is in the shadow, sorry I've very crudely and quickly blurred it out in PS


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read 585 times
9/24/2012 3:40:14 PM (last edit: 9/24/2012 3:40:14 PM)
show user profile  Phil Gornall
It always seems to happen with low light. I never had the problem with MR, but Vray doesn't seem to like low light situations. I have tried verything to get rid of those blotchy shadows.

I am watching this thread for tips.
read 571 times
9/24/2012 4:08:00 PM (last edit: 9/24/2012 4:08:00 PM)
show user profile  rob@dynamic
Yea it's bugging me too. Here's a qucik update...

I've removed GI, changed from Reinhard to Linear Multiply and adjusted camera pos.

better or worse?


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read 561 times
9/24/2012 4:18:22 PM (last edit: 9/24/2012 4:18:22 PM)
show user profile  advance-software
better. less washed out.
read 556 times
9/24/2012 4:22:49 PM (last edit: 9/24/2012 4:22:49 PM)
show user profile  zeefusion
What are your light subdivisions and are you using HDRI? Try a min of 1 max 11 in the DMC image sampler and change the clr threshold to 0.005. You wouldn't normally have to increase the min subdivs unless you were having trouble with fine details.


0.001 in the DMC sampler is way to much IMO. Shouldn't need to go beyond 0.002. I would put this back to 0.01 and keep lowering your clr threshold until you get to 0.002. If there is still noise, then look at lowering your DMC sampler.
read 544 times
9/24/2012 4:36:32 PM (last edit: 9/24/2012 4:57:04 PM)
show user profile  IBENEZ21
Looks like a color mapping problem

In the color mapping rollout, set the gamma to 2.2. This will give more samples in the darker areas.

If you do not expect to do a lot of photoshopping on it, go ahead and check don't affect colors (adaptation only).


Wow, it has been a long time since I posted here!

Photobucket

http://www.thunderhead3d.com

read 530 times
9/24/2012 5:09:36 PM (last edit: 9/24/2012 5:09:36 PM)
show user profile  herfst1
Why does Rob always get the best expert advice for Vray? Not that I'm complaining. :)
read 515 times
9/24/2012 6:04:47 PM (last edit: 9/24/2012 6:04:47 PM)
show user profile  BishBashRoss
What IBENEZ said. Though you will want to check the adaptation only box also or you will get your gamma adjustment twice.

Noise in the shadows = not enough light subdivisions.





read 512 times
9/24/2012 6:06:16 PM (last edit: 9/24/2012 6:06:16 PM)
show user profile  rob@dynamic
thanks for all the comments guys. Had to get back to the day job, but will be picking this up again over lunch tomorrow, so will have some updates then.

Also been playing around with tweaking the lighting rig to pick out the car lines more


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read 510 times
9/24/2012 6:07:47 PM (last edit: 9/24/2012 6:07:47 PM)
show user profile  Garp
For this kind of still, I'd go for the universal settings.




read 494 times
9/24/2012 6:50:38 PM (last edit: 9/24/2012 6:50:38 PM)
show user profile  rob@dynamic
playing around some more...


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read 437 times
9/25/2012 3:47:17 PM (last edit: 9/25/2012 3:47:17 PM)
show user profile  Nik Clark
That black render with the new angle is awesome.



read 431 times
9/25/2012 4:05:33 PM (last edit: 9/25/2012 4:05:33 PM)
show user profile  zeefusion
I agree, the black second one was much better. I love how the reflection of the light on the left follows the contour of the car, whether it was intentional or not. I would zoom out a bit though and make the scene less grey and single toned. such as: http://expensivecar.org/wp-content/uploads/2012/05/lamborghini-reventon-wallpaper-pictures.jpg
read 419 times
9/25/2012 4:28:48 PM (last edit: 9/25/2012 4:38:32 PM)
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