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Colorchanges from when exporting to IFC

Kamelite
Enthusiast

I have a building that, when exported to IFC, the roof changes colour. But not to all planes (See picture)

Kamelite_0-1658658809015.png

Rightmost picture is from AC25 3D-view, leftmost is from Solibri. How come all but one have changed color?

All the planes are based on the same "setup"

 

.Kamelite

Windows 10, Archicad 27
9 REPLIES 9
Laszlo Nagy
Community Admin
Community Admin

I am guessing the large Roof is created using the Multi-plane geometry method, while those two gray Roof elements were done using the Single-plane geometry method. That could be a difference and that may somehow affect the IFC output.

Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac27

The roof  that differs in color is made using this method:

Kamelite_0-1658834528712.png

And it is the same tool I've used on both sides. But it is only one of them that is acting up....

 

.Kamelite

Windows 10, Archicad 27
Laszlo Nagy
Community Admin
Community Admin

In you check these Roofs in Solibri, are there any differences in their settings? Are they classified the same in Archicad? Do they belong to the same IFC Type in Solibri? Does one have a Surface Override defined in Archicad, while the other one doesn't?

Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac27

They all have the same classification, they all have the same surface override.

New project, same issue:

Kamelite_0-1659452532469.png

 

Windows 10, Archicad 27
virginija_r
Participant

Hi, guys, having same issue here, any ideas what might be the problem here?


AC - IFC colour export bug.png
Turit
Booster

As i experienced, if an element has more than one surface color, the largest surface color will be applied to the ifc element when exporting.

Erwin Edel
Rockstar

I think this is a limitation of IFC rather than a bug in AC.

 

I had a similar issue with doors being random colours from the palette that was used for different elements of those doors and as I understood IFC3 can only have one colour per element and IFC4 is far from being a standard yet.

 

If all you want is a colour correct 3D model to share, perhaps a BIMx will work?

Erwin Edel, Project Lead, Leloup Architecten
www.leloup.nl

ArchiCAD 9-26NED FULL
Windows 10 Pro
Adobe Design Premium CS5
Laszlo Nagy
Community Admin
Community Admin

Guys,

Just checking if setting this field to either of the two "Explode" options makes any difference in this situation. See image.

This field applies only to IFC2x3.

IFCExplode.png

Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac27

I will look into that option!

 

Thank you.

 

.Kamelite

Windows 10, Archicad 27