When to use the physical camera?

[tammo]

If i dont have to match my CG camera to a real one and i dont use vray sun (or use it on very low intensity settings),
is there any advantage of using the physical camera?

Does it produce higher image quality?
how about render times?

To be honest i am quite happy with the max camera and i dont like all these real world settings that you have to worry about.

Here is the info from the manual, its not very detailed:

"The V-Ray physical camera allows you to use real-world parameters to set up the virtual CG camera (e.g. f-stop, lens focal length etc). It also makes it easier to use light sources with real-world illumination (e.g. VRayLight with physical units, or VRaySun and VRaySky)."

[thablanch]

Well, you can use the v-ray camera and not use the settings, and at least they are there if ever you need them.

[studioDIM]

Tammo, do have a go at the tutorial i prepared a while back (big thread in the tips and tricks).
It may confuse you even further

Lele

[cpnichols]

If you use the vray camera... you sorta have to adjust your whole workflow. You have to use way more intense (real world) lighting, you have to be aware of your f-stop and speed, you can get real world distortion for your wide angle lenses, and the the vignetting is pretty cool too, even though it is sometimes better to do this in post. And of course the DOF will look a whole lot more realistic if put in the real scale instead of every time someone uses it it it makes their model look like a miniature. Overall your images have more the properties of a photograph, as opposed to being very evenly lit the way most CG images tend to be... But get ready to have multiplier in the 100 to 1000 on your lights and hdrs...

I pretty much don't use anything but the VrayCamera anymore.

Chris

[sv]

I pretty much don't use anything but the VrayCamera anymore.

touché.

[ene.xis]

same here!
as soon as u get the grip of it u ll never want to go back!

same to qmc....addictive!

[Candelero]

Don't forget the White Balance.... (my favorite part in VRayPhyCam).
I have done 5 different stages of light (moon, sunset, sunrise, dayshine, even an Aquarium look) of one and the same camera, just playing with the white balance. Did that in 15 minutes.

To get something similar with a standard cam, I would have to start the whole lighting (of the scene) from scratch for each vision; and that would take definitely long long hours of setup.

Best regards,
nikki Candelero

[Neilg]

Or you could just use it for distortion and vignetting, should you dislike big numbers.

[ene.xis]

hey nikky i d like to see that!
can u share a little more?
i d really apreciate it!

now why didn t i ever thought of that!

[DaForce]

hey nikky i d like to see that!
can u share a little more?
i d really apreciate it!

now why didn t i ever thought of that!

yeah what he said

[Marshall_Craft]

I have an interior scene that I need to finish up pretty quickly, and this link applies. I will try to post a picture tomorrow when I'm back in the office, but the basic scenario is that this reception room is at the top of a stadium structure overlooking the field. Because I suck at modelling terrain (i'm really an architect....in training...) I'm just using photographs from the top of the existing stadium for the scenery. I was going to use the phys. cam and vray sun/sky, but i noticed that my lights had to be in the same range that was mentioned earlier in this thread (500-1000.) Does anyone know if this negatively affects render times? Or does exagerating the regular vray lights lead to other issues (artifacts, burn out, my computer melting, etc.)? I don't have that fast of a computer or the time to test this for myself.

Thanks guys/gals.

- Alex

[Candelero]

hey nikky i d like to see that!
can u share a little more?
i d really apreciate it!

now why didn t i ever thought of that!

yeah what he said

Oks, NP, but I have to prepare all the images into one.
Please keep in mind that those images were produced as WIPs.
Just playing around with the Sun location and the White Balance.
The idea was to see how different it can look and all the stages are
named closely to what the render "KIND OF" looks like. No perfect
matches at all.



P.S.:
Credits goes to my friend Anton / aka / wear who delivered the scene.


Best regards,
nikki Candelero

[Marshall_Craft]

that's pretty slick...nice job!

i'm sure these images are going to steal the spotlight in this thread, but if anyone could spend a minute and give me some advice for my question a couple of slots above, i'd really appreciate it.

WIP:

SketchUp - (I'm designing this as I go...quickly.)




VIZ (with Vray of course)



- Alex

[DaForce]

Very cool Nikki, and all you changed was the White balance hey?

[ene.xis]

thanx alot nikki!
nice tests!


hey marshal it s lookin promissing, but the shot needs to burn in more light...either increase the film speed or the shutter speed. Ucan also use lele tm s exposimeter

or th "s-curve" in photoshop (daforce tm)