[Example] V-Ray Displacement

[thomthom]

Still downloading, but did you isolate the geometry? That is the most important thing to do.

Also, exactly what version of VfSU do you use?

[andybot]

i wonder if he's confused that isolating geometry is not just having it separate but to actually make a "group" or "component" out of it. Haven't had a chance to look at the model either.

[thomthom]

Just opened the model - looking....

(Just a note on the model in general - I purged the model. erased all the scenes. Erased everything except the test square the camera was focused on and saved it - 1.9MB ... from 40MB. Please purge your model before sharing - everything will be smaller and quicker. People find a 2MB file easier to initiate a download for rather than 40MB.)

[thomthom]

i wonder if he's confused that isolating geometry is not just having it separate but to actually make a "group" or "component" out of it.

This is true - everything was ungrouped.

Once grouped it worked fine.


(Though, I found that any geometry in the same context - connected or not - prevents displacement. Wonder if that changed since earlier versions. Before it could be in the same context. But alas not not. Complete isolation is required.)

[Moderat]

Hi,

thank you both for helping me out. It was the group thing that caused the render to 'misbehave'
I tried it on a small patch, and it worked. But it took a half an hour to render a small piece.. so I'm not going to use it in my large scene (will take ages to find the right settings & get the final render). Very frustrating that all your materials have to be put apart from each other to get a working render.. don't see how you can get walls aligned to each other properly if you have consider this. Going to try the sea water later this evening, it's crucial to get it right for this project.

Thank you again, and sorry for the large file. Will keep it in mind for the next time.

[thomthom]

Yea - I never liked displacement grass anyway. Just end up looking like a spikestrip.

I assign a colour to the Colour ID of the material and render out a Material ID pass which I use in Photoshop as a mask where I overlay real grass from photos.

[andybot]

which you can see a tutorial I did a while back on that method.

Edit: updated link (I changed my blog domain name recently)

[thomthom]

which you can see a tutorial I did a while back on that method.

[Moderat]

Yes, seems a lot easier to do it post-rendering. Thanks, I'll be using it for my grass.

Now I've been trying again to get my (sea)water working. I managed to let vray render my material, but now it's coming out all wrong.
It looks exactly the same in the preview in material editor as in the youtube tutorial (http://youtu.be/vbHdi5bEdlI), but when rendering it comes out very pure blue and not transparent. I redid the whole process 3 times.. still the same result.
Anyone an idea? I'm really getting tired of this same kind of problem over and over again .

sameproblem.jpg

http://www.mediafire.com/?52she3kywadj4yz
(I copied the water to another file so my SU-file isn't too big to download. )

Now to bed! 3 am here.
Thanks in advance,

Bert

[majid]

dear mate, do you mind to try this one?
it is just a quick tweak over glass material..... I'vnt changed the refraction IOR ( it is now 1.5 and must be 1.3 for real water) so you may yourself do it... or maybe you prefer a differend wave "size" on bumb section

[WhiteOwl77]

Hi Thomas, SU Modelers

I am working on an exterior Rendering of a residence and currently working on the materials and textures. I have created my own custom stone from a photo I took and manipulated in photoshop. I was able to manipulate the displacement/bump-map images needed for that as well, as I found some good video tutorials on such.
I am wondering: Are there any repositories/resources for SketchUp/Vray exterior material displacement/bump-map images (alpha channel), or does the artist need to make each one him/herself?

Can you recommend any settings for painted wood siding -- I downloaded some siding from: http://www.vray-materials.de/register_c ... cca8a6f87f -- but , as mentioned above, this is formatted for 3DS Max not SU. I am trying to use it regardless to create the displacement image. I cannot get the image to tile or repeat, or any effect to take place. I dont want to use the "out of the box" siding material in SketchUp due to the continuios lines that make up the generic pattern.
Maybe, I will take the siding image texture material in SU, save it, edit it in Photoshop, and use the B&W/grayscale to make the displacement, and then leave the material fill color/diffuse a solid color, and see if that renders correctly.
Any thoughts?


Whats the best way to render/depict exterior siding?
Thanks

Andrew

[broomstick]

Hi there! Can you tell me exactly which siding material you are trying to use? I'll have a go to convert it into vismat

[penumbra]

@andybot. Would love to see that tutorial. Link appears to be dead?

[andybot]

Thanks for pointing that out, I've fixed it in my post.

the correct link is
http://charlottesvillearchitecturalrendering.com/?p=127

[penumbra]

Nice site Andy. And clean tutorial. Done any work with Nelson Byrd Wolf? They are doing some landscape architectures in a couple of our projects.
Omar