Vray Adv 1.45.70 Apartments

[THINKTANK]

Hey Guys!

 

Just finished the first VERSION Of the Model Apartments, I'm waiting for corrections from the archetict But I'm basicly Preparing the Materials (Well kinda done that) but Really I wanted someone to give me some tips on how to make this really good , with some good Vray settings for Exterior set up.

 

 

I'm placing the final renders in to Large Res Photo's and touching it up in photoshop to blend it in, bit I just want help on how to make it look FANNNNNNNTASITC!

 

Thanks all.

 

 

 

Ok heres the first test Render, I've got a few problems straght away,

 

1) First of all the render time: 1hour and 9 minutes, now it's nto the computer (Dual Operton 250's, 6 gig RAM DDR2, SATA 1TB Hard drives, ATI X800 256DDR3) so it obviously the settings i've done, so if anyone knows about Vray please share your wisdom....And the image is the actual size i rendered it, so it's small res and takes ages!

 

2) I'm getting some black windows, Anyone know why?

 

[Joosti Ink]

first: what's your enviroment setup?

1 direct light and vray skylight is enough for a nice exterior.

 

then: 1,5 for 1st bounce is too much dont go higher then 1.

your subdivisions and samples is way too high, set it to 50 and 20 (standard)

 

your glass is black because you prob. did not change de color in de vray enviroment settings, reflection there is black by default if you override max defaults. It has to have some to reflect.

what did you use for glass mat? Also: to get good glass it should have a thickness, if you dont have that a shell modefier might do the trick.

 

for AA, use 0-2 or 0-3

 

model looks ok.

 

Bart

[THINKTANK]

Joosti Ink: first off thanks for advise.....

 

With AA do you think I should use QMC Or Adaptive Subdivision?

 

The glass pannels are 3d rectangles, so i assume I don't need to add a shell Modifier to it as it has thickness?

 

Heres my Light set up, I'm not sure if it's any good, i'm kinda new to V-ray BUT i want to use V-ray for ever because i think the results will be worth it!

 

It's just a simple rectangle VRayLight

 

 

And here is the glass material settings, are they ok?

 

[Joosti Ink]

you are using a vray light as a sun, that is possible if you use it as a dome, but that is only in the latest version I think, (why do you not have the latest version?)

Allthough to use a dome, there are many other factors to tweak, but since you just started with vray I suggest to just use the sunlight system in max and set the shadows to a vray type shadow. Turn up the multiplier a bit and the color to slightly yellowish. And a blue env as skylight in the vray settings.

 

For AA you can also use qmc with 1/4, it can give you sharper details when you have a lot of geometry and stuff, but adaptive can be quicker in some cases, just do a try.

for the glass: rectangles from cad? yes i think it is wise to use the shell modifier. For glass you can find some good mats on the vray forum too. but diffuse to black, refl and refr to allmost white is mostly the trick.

 

/Bart

[THINKTANK]

Can anyone tell me why I get the black windows on the left side??? and how can i improve the realistic quality of this render?

 

thanks

[Joosti Ink]

black windows: check your geometry, coplanar planes.

overburn: play with the colormapping settings.

 

check the tutorials on the vray site/forum.

[THINKTANK]

Ok heres what i've got so far, I've stilll got the black windows but i quickly got them out in photoshop (but i really wanted it to look normal in first place),

 

sorry about the res size, it took an hour to render at that res!!!! thats why if anyone can help out about decreasing render times that would be very nice of ya!

 

 

And heres the New lighting Set Up...

[THINKTANK]

Ok heres the next render, 3 hours and 15 minutes to render!!!! OMG! can anyone give me tips to improve render????

 

 

[skogskalle]

what are your GI settings? is it the GI calculation or the actual render that takes time?

 

even with the default settings on both GI (medium) and AA (QMC 1-4) that image shouldnt very long at all to render on your system. try the default settings and see what happens.

 

also - in the qmc settings rollout, make sure you havent accidently put a high number for "global subdivs multiplier" - that setting will affect everything from glossyness to shadow smoothness. default is 1. with your material and light settings you would probably set it to 2 for final render, but keep it at 1 or lower for testrenders.

 

if thats not the problem I really dont see why your rendertimes are so high...

[THINKTANK]

skogskalle Thanks for the advice, the actuall calculations take about 5 minutes, it's the actual "turning it into image" that takes the time.

I'l change my settings and see what render times i get next, thanks mate.

 

Here are some images I've rendered to show different angles (and also align perfectly to the photo's i've already taken) (ignore the houses there temp)

 

 

 

 

[Sawyer]

What are your environ settings? You may be able to increase dark multiplier to get the shadow areas lighter. What are you using for your bounces?

[THINKTANK]

Is this ok?

 

 

[spyder2411]

The renderings are coming right along, careful on the upload size. One thing for sure, kudos for the beautiful shape of the building!

[Sketchrender]

One thing, the render time shoots up from say 30 mins to over an hour if you use an ies sun I found.

 

I use a vray direct light only.

 

Am I right in this as the difference in time is important.

 

phil