topic Problem with displacement on maxwell materials in Visualization

Problem with displacement on maxwell materials

Anonymous — Thu, 11 May 2023 10:07:08 GMT

Been scratching my head all morning over this and can't see where I am going wrong? I am trying to load a brick maxwell mxm material into AC15, and it looks fine in preview, but when I render it dos this crazy displacement, and makes my brick wall look like it's clad with a drape/curtain

Any help gratefully received, I am struggling with this

Re: Problem with displacement on maxwell materials

TMA_80 — Wed, 25 Jan 2012 15:31:06 GMT

Hi,

have a look at this "reference " topic :

http://archicad-talk.graphisoft.com/viewtopic.php?t=12722&postdays=0&postorder=asc&highlight=maxwellrender&&start=400

and here is the Clue :

MaX_MaD wrote:
Try upping your precision settings dramaticaly (like to 500 or 1000), I have only used displacement once and had similar problems.. In the end I'm sure I really ramped up the precision and that seemed to solve the problem.

There arn't that many controls, so I would just have a play with them and study what does what..

So, you have to open the downloaded mxm file in the maxwell material editor and modify the precision value.

Re: Problem with displacement on maxwell materials

Anonymous — Sat, 28 Jan 2012 09:01:18 GMT

Archicad has no options in regards to subdividing the model surface into nice, even squares of the type that the displacement channel in Maxwell likes (rather than the 'broken mirror'-type subdivision that is extremely noticeable if you open up your AC model in another 3D modelling program).

Aside from the suggestion to ramp up the 'subdivision' levels in your MXM displacement channel, you may have to leave this channel alone (unless the surface is rectangular) and just go with bump.

If you find the answer, please post it - I'm having the same problems.

Re: Problem with displacement on maxwell materials

Anonymous — Sun, 29 Jan 2012 04:51:59 GMT

the material looks well in preview because it is probably using a evenly dense mesh for the preview scene.

the examples you've posted above appear to be triangulating the mesh(s) on heavily loaded single vertices.

displacement works properly according to manageable render/export/memory consumption relative to mesh subdivision.

you could try setting your displacement setting within the maxwell material setting to "adaptive" and see what happens...... although you might experience some heavy export times with the mesh(s) shown and desired results won't be guaranteed....

curious to know what your process from model to render is? i often have to re-model certain surfaces in a third party polygon modeler in order to get the right surface distribution for the displacement needed....

Re: Problem with displacement on maxwell materials

Anonymous — Thu, 02 Feb 2012 14:30:14 GMT

Many thanks for the help guys.

I have tried upping the levels in the displacement channel, up to 500, then a 1000. This improved it, but did not solve it. Doubling it again had no effect. Same for setting to 'adaptive'.

Below is a quick test to show the differences.

Looks like unless I am modelling huge brick spheres in the future I will have to forgo the displacment for now

Rusteberg, I render in Maxwell direct from AC, no 3rd party software is used.

Re: Problem with displacement on maxwell materials

Anonymous — Thu, 02 Feb 2012 16:13:36 GMT

And the finished result, sans brick displacement

Re: Problem with displacement on maxwell materials

TMA_80 — Fri, 03 Feb 2012 22:08:10 GMT

Thanks for your last post- quite mike

Your rendering is still great even without displacement ,

however The question now is : who to ask for a solution for this issue, Graphisoft or Nextlimit ?

Re: Problem with displacement on maxwell materials

Anonymous — Mon, 24 Sep 2012 14:29:48 GMT

Does anyone know if any progress has been made on this issue? The subdivision resembling a "broken mirror" is clearly an Archicad deficiency that need to be corrected to enable advanced rendering software packages like Maxwell and Thea Render to handle displacement maps efficiently.
(Please vote for this in the wish list section of the forum.)
http://archicad-talk.graphisoft.com/viewtopic.php?t=40636

I am having similar problems creating usable displacements in Thea Render. I have been able to model some very convincing grass, clapboard, and shingles in test renderings. However, I am unable to get good results with my Archicad models. The best results required me to cut my ground slabs and building walls into square pieces in Archicad. Then, as mentioned in the posts above, I had to use a high subdivision value in Thea Render. This is not an acceptable workflow.

Short of Graphisoft fixing this problem, does anyone know of any software that can be used to resubdivide an archicad model before loading it as a 3DS file into Thea Render?

Re: Problem with displacement on maxwell materials

xavier vanabelle — Wed, 26 Sep 2012 08:32:54 GMT

i have same problem with the normal on Maxwell... Anyone have a solution ?

Re: Problem with displacement on maxwell materials

Anonymous — Tue, 13 May 2014 10:38:41 GMT

...isnt it time you guys in Graphisoft to resolve this... models made with Archicad without displacement working with Maxwell properly is not a little thing.

Re: Problem with displacement on maxwell materials

Barry Kelly — Tue, 13 May 2014 14:32:26 GMT

Archicad 18 will have Cinema 4D built in - with displacement.
I don't know how this will affect exporting to Maxwell except that maybe now you won't need to.

Barry.

Re: Problem with displacement on maxwell materials

Laszlo Nagy — Wed, 14 May 2014 14:09:32 GMT

I just got word that Maxwell has released an updated plugin for ArchiCAD a few days ago:

http://support.nextlimit.com/display/mxdocsv3/ArchiCAD+plugin+-+Version+History

Re: Problem with displacement on maxwell materials

Bricklyne Clarence — Thu, 15 May 2014 22:20:13 GMT

andrejpapesa wrote:
...isnt it time you guys in Graphisoft to resolve this... models made with Archicad without displacement working with Maxwell properly is not a little thing.

To be fair, this isn't a Graphisoft problem.

They can't be expected to develop how their software works to the expectations and requirements of a completely different software performing a different task than what ArchiCAD is primarily supposed to be doing (which is not visualization).

ArchiCAD is not a rendering or visualization software, so it's unreasonable to expect or demand them to have it tessellate model surfaces into a form that Maxwell likes.

The ArchiCAD to Maxwell plugin is developed by NextLimit (the makers of Maxwell).
The best you can hope for is to ask them if a work around can be found allowing it to translate surfaces with displacement textures defined into a format or subdivision pattern that doesn't prevent displacement during render time.

Re: Problem with displacement on maxwell materials

Anonymous — Mon, 02 Jun 2014 16:01:22 GMT

Version 3.0.1 - May 9, 2014 migt have fixed the problem

Re: Problem with displacement on maxwell materials

Anonymous — Mon, 02 Jun 2014 16:04:46 GMT

Well i did not try new archicad plugin however it says FIXED: Material preview can slow down and material display can be wrong after switching to material with displacement , so that should be ok also i found that sometimes workaround is in order with previous version that you make flat surface many-poligonal it makes things better. And I would not agree that is not Archicad problem in matters like this where software is presented to work with some other software it is up to both suppliers to find a solution together. I might have been wrong in my previous post where i was like Graphisoft should fix this... appologies.