New user, problem with HDRI

[edonk]

Re: New user, problem with HDRI

Thanks for the response again Jackson. Yer I'm bringing them in as spherical HDRIs and have tried tons of various different angle settings and it doesnt seem to change the direction of lightsource at all...
Think I may try them in a completely new scene later on when I have more time to see if its a problem somewhere with that particular scenes setup. I'll try report back about it.
Thanks for the info about lack of material editor too. (Not that its a problem btw!).

[dalomar_cg]

Re: New user, problem with HDRI

If you're blending HDRIs and the Sky, then the lightsource will most likely be attributed to the sun and not the HDRI. In that case any amount of rotating will not really help all that much.

[edonk]

Re: New user, problem with HDRI

If you're blending HDRIs and the Sky, then the lightsource will most likely be attributed to the sun and not the HDRI. In that case any amount of rotating will not really help all that much.

Hi Dalomar, no the rotations I did with just HDRI so no blending at all - it was just something I noticed before I started the 'blending' method that Jackson kindly told me about. I'll be digging the manual out again later as I must be missing something really obvious. I'm rendering at the moment though so likely wont do more tests till tomorrow now. Cheers.

[dalomar_cg]

Re: New user, problem with HDRI

Did you rotate both the GI and Background maps. Currently they are not linked, so any modifications you make to one must be echoed in the other.

[edonk]

Re: New user, problem with HDRI

Did you rotate both the GI and Background maps. Currently they are not linked, so any modifications you make to one must be echoed in the other.

No that is something I didnt do... I presumed that the GI actually controlled the light source and the background is just there for 'effect' and had no bearing on the actual lightsource direction. If thats not the case then I will run some more tests later, thanks!

[dalomar_cg]

Re: New user, problem with HDRI

You're correct in your presumptions. I was suggesting it thinking that you might be rotating just the background (as that's the one with the more direct visual feedback) and not rotating GI.

[edonk]

Re: New user, problem with HDRI

Hi, couple of new issues whilst test rendering today. Is there anyway to 'smooth' materials in Vray. Other renderers have the option to smooth a surface so that you dont see the sketchup models facets as much in the rendered output whereas the Vray test renders I have run you can clearly see the multiple faces of some surfaces. I sometimes work on fairly complex geometry so it would be a shame if it doesnt.

Also is there a limit to the image size it can output? I ran a 6000px wide render test this afternoon and it crashed out.

I'm still amazed at how fast Vray can work - one of the tests I ran today output in just 14 minutes, compared to the same scene in a competitors engine that took 4.5hrs. Superb!

[Jackson_cg]

Re: New user, problem with HDRI

Re: smoothing, you should apply materials directly to geometry/faces rather than the outsÃdes of groups and the smooth them.

6000 px wide? What would you need a render that size for? ??? If you're system crashed it's probably a RAM issue.

[thomthom]

Re: New user, problem with HDRI

When you need to render large images, use Render to VRImage under the Output section. I think there is a walkthrough on this forum some place. If you search the forum for Large Resolution you'll probably find it.

[Jackson_cg]

Re: New user, problem with HDRI

I think the largest I've rendered is 4800 px wide, I'll try to do a test tonight. I suppose poly-count and texture sizes contribute to a system crash as much as just render size.

[edonk]

Re: New user, problem with HDRI

Re: smoothing, you should apply materials directly to geometry/faces rather than the outsÃdes of groups and the smooth them.

6000 px wide? What would you need a render that size for? ??? If you're system crashed it's probably a RAM issue.

I'm trying to find the programs limits during my 30 day trial.. I have 12GB of RAM so thought a 6000px wide image would be ok. I usually render out at around 4000px, like I said I'm putting it through its paces.
As for smoothing, I never apply materials to groups so Im not sure if theres anything else I can do on that front which is a shame, I will double check the geometry is properly smoothed within sketchup again.
Thanks for the workaround regarding larger images ThomThom I will search the forum for it.

[Jackson_cg]

Re: New user, problem with HDRI

LOL, yep 12Gigs of RAM should have you covered for most eventualities!

I just did a quick test, this simple model rendered at 8000 x 4570 px without problems on my laptop (XP SP3, 1.83GHz Centrino Duo, 1.5Gb RAM), but an attempt at 10,000 px wide caused a Runtime Error.

[dalomar_cg]

Re: New user, problem with HDRI

No offense, but 12 gigs won't mean s*** with SU. Short story is that SU will use a max of 2 gbs, no matter what your OS is or how much memory you have. You can thank Google for the lack of a large address aware tag and 64bit support. Long story can be found in the answer to the third question on the FAQ page

http://software.asgvis.com/index.php...209&Itemid=437

We are shooting to have 64 bit versions of the spawner which will allow for utilizing all the RAM you have on a 64 bit machine, but that won't be till the next full version of VfSU

[thomthom]

Re: New user, problem with HDRI

Ooohh.... 64bit. The next version just sounds better and better. Sounds like there's allot of things you guys got planned, or at lest looking into.

[dalomar_cg]

Re: New user, problem with HDRI

Just for the spawners...everything else is out of our hands.

Planned is one thing...implemented is another. Planning is relatively easy and is a merely a matter of thinking about what you'd like to do. Implementing is a whole different story. We still have a long way to go, so we'll see how much of the plan gets implemented ;D