Set material by another parameter

[renanemeyer]

Hello everyone on the forum.
I’m trying to apply material to my conduits by dynamo (the main idea would be to color them, but I believe it’s only right by applying material). As it would have several materials, it is selected according to the filter parameter.
I read several posts like:

Change color of conduit by filter

For some reason OverrideProjectionLineColor is expecting color to be a list. FYI, you can also wrap both your conditional statements into one statement using DesignScript. [image]

Change the material of a family with dynamo?

[image] Open an parameter in your family as instance one and set it like above shot.

Set Material Parameters from Python Script

works perfectly! thanks so much for your help

But none of them managed to evolve where I can, the material is applied, but when exporting the IFC it comes out in gray.
Has anyone seen something similar or know what can be done?
I am currently applying the following to get it right.

color.dyn (13.2 KB)

[Alban_de_Chasteigner]

Hi @renanemeyer,

It’s probably best to create a single AppearanceAssetElement per material.
Your “Generico” AppearanceAssetElement is applied to 65 different materials.
The problem may also not come from Revit but from your IFC viewer which does not take into account the display of materials.

[renanemeyer]

Hello @Alban_de_Chasteigner
Nice noted on this issue. I did the adjustments as per comments.

But when you define the material, it says that the parameter does not exist.