a first interior w/ vray

[cocolas]

hi all,
here's my first shot at an interior w/ vray......i use this simple interior scene as a testbed for trying diffrentent renders (vray/Fr/brazil)

at 800x600 it too about 12 mins.

your comments are welcome.

ftp://ftp.hdrinc.com/4OMA/4cocolas/V...ay_medium1.jpg

i added a bit of grain in PS.
paul.

[natty]

looks good
maybe turn your skylight up to around 10 and use HSV ....... just to get the light in there a bit more.....


Natty

[cocolas]

i have HSV to 1/1. and my skylight is at 5.0

A little problem I'm having is that after i calculate the imap w/out the glass (to make it faster) and then I unhide the glass, the light level in the room seems to drop. the glass is just a standard mat w/ a vraymap in the reflection channel at about 40%.

so I'm trying to bump up the multiplier for the light and the first GI bounce multiplier.....

I don't really like the HSV exposure since it affects the whole image and doesn't give enough fine control...

[Intenzity]

Not sure what secondary your using but if your using GPM you can bump up the multiplier too.

But other than the lighting, I love the feel of the image.

I forget how do you make an image grainy? I did it by accident once but I don't remember the settings since vray demo doesn't allow me to save.

If you can maybe you can post settings?

[GoncaloP]

Wow, very nice image! I remeber that I saw this image somewhere else, but this one looks much better

Congrats,

Gonçalo

[cocolas]

Intenzity:
actually I did grain in Photoshop. I'd be cool to know how to do it in vray, but I have a feeling it may take longer....

I'm using direct comp. for secondary bouncing. I'll try bumping up the light and secondary multipliers.......

goncalo:
thanks. Yeah, you saw the image on FR boards....I'm using the scene as a test bed for diffrent renders.

[Dman3d]

Hey nice stuff!
Had a bit-o-problem with HSV also - much the same as you describe.

[cocolas]

Hey nice stuff!
Had a bit-o-problem with HSV also - much the same as you describe.

thanks!! ....yeah, as we discussed earlier, I think that HSV (and the other exposures) just don't have the right cotrols (hehehe, maybe Vlado is reading , although they do help sometimes to get rid of hot spots....

as for the glass: when I put it in it just takes down my light level, so I think I might just have to exclude it from casting shadows from the main/outside light, but I should't have to do that....

any suggestions??...

thanks for the nice/helpfull comments.....

paul.

[cocolas]

OK...here's an update on the general room lighting.....
let me know....

ftp://ftp.hdrinc.com/4OMA/4cocolas/V...vray_high1.jpg


paul.

[RErender]

Still a little dark in the corner by the couch, but looking really good. Can lights look flat, is there a lens on them?

[JPS]

as for the glass: when I put it in it just takes down my light level, so I think I might just have to exclude it from casting shadows from the main/outside light, but I should't have to do that....

any suggestions??...

Hi, cocolas
What Color Mapping are you using? Exponential and HSV seem to always darken the glass. I've noticed that using Linear eliminates the problem. Give it a shot and let me know how it turns out.

RGDS,
J.

[cocolas]

@JPS:

well linear was my first try and there were too many hotspots by the entry in the room, and the colors were a bit oversaturated....exponential did the opposite - overdisaturate the whole thing...looked pretty bad...so the other resource, which i used for the last shot was HSV exponential with 1/1 for darker/lighter. I rather recalculate the imap with more light and higher first bounce multiplier rather then fizzle with the HSV exponential....which is applied image wide. So what i ended up doing was to bump up external light multiplier and the first bounce multiplier.

@ RErender:
I kinda like the dark areas behind the couches and in the corners...they create a more interesting contrast with the lit areas next to the window IMO. -maybe just a matter of prefference. As for the canlights, they were approximated due to time constrains....if i have time I'll put in the detailed types......this was mostly an exersise in lighting w/ different renders then anything else.

thanks for the comments/suggestions.

Paul.

[RogerChen]

Despite the lighting, I really love the atmosphere you create in the image.

[cocolas]

Despite the lighting

why is that?...how would you suggest improving it?

[Dman3d]

Not sure what to say about HSV or which particular method to use.
The biggest fight (for me at least) is with the shape of the room.
It has so much impact on how to light it. I often light in serveral ways
before I get remotly happy with an image.

What works in one will not in another due the materials, light placement,
color and so on.

But perhaps making the can lights more colorful and intense. That
might help snap a bit more contrast into the indirect areas.
Are they spotlights, VRay lights, IES lights?

In one case I placed a very small vray light then a spot light
both at slightly differing color. The VRay light gave me the area light
look while the spotlight showed an edge on the wall.
Much like the lamp in the corner here
http://www.thinkingpost.com/angrypho...ges/cl2-03.jpg
(except this is a VRay light pointing
up and an attenuated omni that excludes the bowl and bulb)
Now this is not the most sophisticated way of doing this and of course
more lights add time but it worked in this case.

That can take a little time, too much or too little and it can flatten things
out.

That glass does look good as well as the image/objects outside.
Is that just an image outside the window? It blends well (to me).