This happens to me occasionally when I have changed the colour/transparency of a vismat material and/or I have an imported model with an unrecognised texture. In the first case, I tend to save what I am working on and exit, when I restart it all worls fine. In the latter case, if you are using an imported model, it may be worth removing the textures from this model and re-applying them with either native or vismats. Hope this helps

@thomthom said: But that works by default anyway... Yeah, I didn't know ^^ I saw a tutorial once saying to do it this way, and never questioned it...

That's exactly my experience as well.

One thing for sure I could tell: without Max version (eating +- 15gb) I simply would be fired (though file exporting itself is a tedious job)

@valerostudio said: For the best glass yes best, but pretty much slow..

@vizfellas said: Try this Make modeling in mm scale. When you add light in VRAY option increase power to 1000 of the IES file. OMG! Thanks so much for this info, it was such a simple fix, my IES lights are showing now. Thanks!

.mtl will not work with this V-Ray. That's a Max format, which I am sure this model was meant for. Now with that said, I have to say that this is the limitation you will hit every time with SketchUp. It just cant handle geometry like this. Try to import the same file in Max and see how it handles. It's just night and day. SketchUp was never meant to be this kind of program. Some rendering engines allow for proxies which puts a low poly placeholder in SketchUp and then renders out the hi-poly version. V-Ray currently does not have this capability but it is in the works for their next release.

@valerostudio said: First off, welcome, if you truly want to learn how to make renderings like this then you will need 2 things. Time Patience Here is a starting point to answer your questions specifically. The leaves and plants are no way SketchUp. These are most likely hi poly models purchased on the web and rendered in Max. The wood floor is probably something where the boards were modeling in 3D and a hi res texture was used to map the wood texture. The concrete looks like an Arrowway texture. http://www.arroway-textures.com/ Now these answers really only tell about less than 1/2% of the information you need to make images like this. The first image you posted probably was modeled in 3D Studio Max or SketchUp possibly and then imported in Max, materials and textures were probably custom from Photoshop and then VRay materials made one by one, then the lighting and rendering probably took 1/2 day to setup. Then I am sure there was a lot of post process in Photoshop. I started as an architecture student and when I graduated I decided to focus solely on viz. I have been using VRay for 5 years and I am still learning. If this is truly what you want to do, then you need to make that choice now and start the focus. I think there are few licensed architects practicing architecture and making renderings like this. I may be wrong but I just think as much time needs to go into learning all the tools and concepts to make a rendering as you would need to invest in becoming a licensed architect and there are only so many hours in the day. There are plenty of resources online to learn VRay and post work. Evermotion has a great 2-part video series on SketchUp and VRay. I would start there. Thank you, helped me a lot. First you need to see how it's done only then you can start learning the right way. Have a nice day!

I think using layer is a buggy with Vray because when i deleted all the layer I have, I can now render my model. Layer has another issue with scenes and Vray. If i turned off a layer on another scene then on the product image the supposed to be turned on layer disappear. I hope chaos group now working on this bugs, and I think what causes much delayed on their product update is because theyre waiting for another sketchup product which fixes especially in counting polygon.

This is a good place to start. http://www.vray.com/vray_for_sketchup/manual/

[image: 7ex7_free-3D-high-resolution-39.jpg][web 650,400:1rvy7koa]http://www.freebestwallpapers.info/bulkupload//02082011/1//3D/free-3D-high-resolution-39.jpg[/web:1rvy7koa]

I think, however, that even with the default fov 35, the problem is the same

Yes, I'm trying to render a scene with an HDRI background and I want the objects to cast shadows. How do I get that to work?

Ok let’s start with the native SU before we get onto the VRay. Couple of things: You need to pay attention to the front and back faces. (front – white , back – blue). VRay materials should only go on the front faces. The front faces are for external surfaces so with a brick wall for example, the outside (the bit you see) should be white and the internal (the bit you don’t) should be blue. http://support.google.com/sketchup/bin/answer.py?hl=en&answer=115427 Your model needs to be all white inside the church. The attached file (stage feb 24 edit Monochrome.jpg) shows what faces need to be changed. [image: F1Rt_stagefeb24editMonochrome.jpg] You need to keep up with purging the unused materials, components and styles. I ran a purge and the attached file (Purge.jpg) shows how much unused stuff was in it. The files is greatly affected, the file you sent was 20mb and the purged file is 4mb. [image: ZRK2_Purge.jpg] On to the projectors screens: The reason they weren’t working is because they had been applied to ‘back faces’. I have attached some file that should help explain it. This image show that on is not working but the other is. (Screen 1.jpg), the corresponding SU export shows the one not working is applied to a blue face. (Monochrome 1.jpg) [image: 0cVv_Screen1.jpg] [image: BXJb_monochrome1.jpg] As you can see in (screens.jpg) they are both working and the SU export shows that they are both front faces (monochrome 2.jpg) [image: yzFH_Screens.jpg] [image: yLcI_monochrome2.jpg] I have attached the reduced file as well as the packed material. Hope that helps. TRJ - stage feb 24 edit.zip TRJ - TV screen.zip

@massimo said: Hi Tommaso and welcome. Please don't post external links to your images. I'm not on Facebook for example so I can't see them. Just use the "upload attachment feature" you'll find at the bottom of the post panel. You can upload your work in the gallery section of the forum. You can choose the WIP subforum for your work in progress jobs. Thanks, I just added some pics in the Gallery section so that you can see them I hope. Thanks again for your support and lol fot this forum!! Tommaso

@valerostudio said: If you do a search in these forums, you will see the the Arrowway maps question has been discussed. Especially pertaining to the reflection / glossiness maps. Those freebies though are insanely low res and I wouldn't expect amazing results from them. I think you can buy some of the maps individually. The pay ones are very hi res and work well with VRay. You may have to downsize them though because they may be too large for SketchUp to handle. I think some of them get as large as like 12,000 pixels wide or something insane like that. One more note. If you search for Jason Maranto, he is a Sketchucation user that has made SKM libraries of all of the Arroway free files. The libraries he made link direct to Maxwell, but you can still use the SKM libraries without Maxwell and the hi-res versions. Thanks! One thing i have been missing withe my version of vray was the materials that are supposed to ship with it... I did not realize that and have been trying to create or find materials elsewhere or create them from scratch, which has been time consuming. I realized that they had sent me an link to download the library when i first signed up but when I had clicked on it I got a forbidden error 404 so i did not download it at that time then I forgot all about it. I have sent a request to Vray for assistance downloading the vray library. I am assuming it is a pretty good place to start with some nice materials as well and all i have to do in import them!

@decumano said: Yes! Solved... as in my other question-post it was a component problem. I exploded and made it again a group and now it works. Ok, tomorrow i will try to use ies+spotlight lights and not omni Thanks for the help Anytime

Thanks for the tips guys. I couldn't (and can't) post an image of the final result, since there's some secretkeeping of the design involved for now. Perhaps in a few months. Anyway, the biggest problem in this story was mainly the guy who commissioned it didn't quite know what he wanted and inadvertently took it out on me, telling me every time I had rendered something, that it looked wrong. Finally we settled for using a really plain, modelled plank, just plain colour and a simple groove. Thanks for the link Valerostudio, to that arroway thingy. I'm sure it will be useful in a later project I knew the site of course, but I just found out this time around that they have downloadable samples. Quite a handy thing, especially with the people I work with... always changing their minds... As to the creating of bump maps etcetera; I'm quite adept at that already, but it's a nice video to watch nonetheless. Always a pleasure to see someone working at something they're good at.

First thing I would check is textures. Make sure you don't have any funky image files from any warehouse objects for example. I've sometimes run into images that are cmyk jpeg files instead of RGB for example. Have you tried doing a render with global material override. That way you can check if any of the materials are causing problems. (You can override some materials and have those render, that way you can check specific materials.) There's any other number of problems that can crop up. Another trouble-shooting option is to load default options settings to make sure something in your options isn't messed up. If you are using DR, there are all kinds of instability there that could be an issue. Any more specifics you can share on your settings? One last thing: do you have more than one window of SU open when you are rendering? That can cause all kinds of issues too. I never have two windows of SU open with vray running.