Messages

1

Gallery / Re: Studio oject render

« on: 2013-11-15, 19:22:57 »

No offence, but considering these two posts it's a bit strange you didn't know about "reflect on back side" and "refl/refr cutoff" for glass.

What makes you think that I did not know about this? o_O ))
"reflect on back side" i enable always.
 

2

Gallery / Re: Studio oject render

« on: 2013-11-15, 17:37:05 »

It's strange.. I agree with you.
There must be no difference in raytracing process. But I can see this difference clearly.
Angle of this model in this renders and way it light itself really not the same. In vray there is photometric light inside bulbs, and in corona there is a emmiter material on bulbs. But I dont really care about it.
Because the way vray-glass looks don't depend on it.

3

Gallery / Re: Studio oject render

« on: 2013-11-15, 16:25:30 »

It was not about proving a point... It was just about correct comparison. ;)

A correct comparison was not my intention..
I just wanted to show how Vray and Corona draws a glass in a normal situation.

But i was render one more test..
- reflect on backside: enable
- reflection cutoff: 0.00
- sub pixel mapping: disable
- Clamp output: disable
- Max depht: 20
- All material settings and IOR: same in Vray and in Corona.

As you can see, there is no big difference between first Vray image and last one..
But in real life in Vray i will never set-up my scene like that.. It is pointless, i think. :)

P.S. By the way, i use vray since its first stable beta. And i know what i'm talking about.
My personal imho - glass in vray sucks..))

4

Gallery / Re: Studio oject render

« on: 2013-11-15, 15:07:17 »

In vray, go to global settings in render settings, enable refl/refr depth override and set it to 20, that should make a good base for comparison ;)

There is no big difference, as i can see... May be a little bit better, and little bit more saturation in glass edges.
But not even close to Corona.
And, as i expected, render time increase dramatically even in low resolution and with low DMC settings.
So... what else can i check out to prove my point? ;)

5

Gallery / Re: Studio oject render

« on: 2013-11-15, 14:27:39 »

In vray, go to global settings in render settings, enable refl/refr depth override and set it to 20, that should make a good base for comparison ;)

Let's see.. )

6

Gallery / Re: Studio oject render

« on: 2013-11-15, 12:54:04 »

Nice pictures!

But isn't there a possibility to enable "reflect on backside" in vray? It does not help?

Thanks! ))

I just checked Vray scene, in fact, this option was enabled.
And, as you can see "Sub-pixel mapping" and "clamp output" are disable.
This scene was rendered with IM+LC scheme. But "brute force" do the same.
(At least in this scene)

So i can say it for sure, that the vray sucks for glass rendering. ))

7

Gallery / Studio oject render

« on: 2013-11-15, 09:19:29 »

Corona studio renders.
And comparision to Vray.

At the first image i want to show the way Corona work with glass.  In real life, glass, under heavy light, usually light up it self in re-refraction.
So many years i try to force Vray to do that..)) But Corona, easily, did the same trick. And i like it a lot!
(render time approximately same, about 1 hr.)

Second render shows how re-reflection in gold changes color from light yellow to orange and gold starts to shine.
In this case vray renders metals slightly wrong. But i have to say, that this sconce in real life not so clean and so shiny....))

P.S. Best regards to developers team! Good luck guys! :)

Vladimir Urgalkin