[Example] V-Ray Displacement

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_complete.php?regkey=923c1bebe6cc014330075ecca8a6f87f -- 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

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

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

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

krschncrlo

hi, i had this problem in displacement, whenever im trying to render curves, it comes out segmented

look at the yellow pillow

jackwatson

Something useful to consider when creating a displacement map, courtesy of http://viscorbel.com/vray-materials-theory/#comment-6946

"The deformations work like this – middle grey [128;128;128] of the map does not change anything on the object, darker values push the surface inwards while lighter values pull it out. The further this value is from medium gray, the stronger is the effect. Color of the map is not taken into account and only the lightness value is used."

This is good to know when you don't want the geometry created by the displacement to extend beyond the modelling you've laid out... eg bricks protruding though picture frames hanging on the wall

TedVitale_CG

@moderat said:

I switched the displacement multiplier up to 50, but it doesn't change a thing.
I created a grey rectangle outside my model to check if it would work there (so it isn't connected to another material).. still the same?
Can someone check my sketchup file? Really stuck here. As far as I know I'm not using any groups for the model, maybe by accidence a while ago (been working on it for quite some time now..).
http://www.mediafire.com/?pxmhwih5p0t5li3
(if you open it, does it look like a heavy file? Sketchup blocks from time to time for a minute or 2..)

Thank you!

Bert

When sharing files, remember to use the "Pack Scene" tool in V-Rays tools. You can find it by going Plugins>V-Ray>Pack Scene. This will ensure your scene has all required materials and textures. The scene you shared does not have the associated displacement map you are using so I cant accurately test or check anything.

Also, download and try out the grass file I've attached.

Grass with Displacement