vraydisplacement on archicad geometry in 3ds max

[mzex]

Hello!

need help. I model in ArchiCAD and export that geometry in 3d window save as: *.3ds. Under "construct 3d studio objects according to: I choose option materials and unit as 1000mm.

Problem is when I try to use vraydisplacementmod on those exported geometry. Even though I turn on keep continuity I get uncontinued displacement over edges.

There is link to screenshot of what I am talking about. In the rendered image left object is exported from archicad and the right one is box modeled in max.

 

 

Does any one have any solution for that problem?

[maciejwypych]

I'm not a Vray expert but I think that you didn't tick the "Keep continuity" box under 3d mapping/subdivision in the VrayDisplacementMod.

Make sure it's on and adjust the edge threshold accordingly to the size of your displacement.

[mzex]

Look at the picture I attached.

You'll see that I did. If I hadn't there would not be continuity on right box that was modeled in max.

[maciejwypych]

Sorry, I didn't notice that.

Maybe the geometry from archicad imports as a set of planes (even if it is a poly or mesh) and you need to weld vertices to make it one object and your displacement to work?

[mzex]

thnak you for the info.

on other forum I just got same answer, but since I am newbie can you give me a short explanation of that welding process?

[maciejwypych]

1.go to your edit poly modifier

2.select all vertices

3.click weld (sometimes you need to specify a threshold)

4.done

 

*if your walls are build from separate planes (as each being separate object ) then you need to select one first and attach all that are building that wall

[mzex]

found tutorial on that.

 

is there any more automatic way to weld vertices that are on same coordinate?

[maciejwypych]

I think the one I've written earlier is the quickest way to do it.

Or you can export the model from archicad to dxf and while import select Merge nearby vertices.