Exporting Materials from GetRenderingAsset()

[Anonymous]

Hi

I am able to export Material textures etc for the majority of models using doc.GetElement(material.AppearanceAssetId) as AppearanceAssetElement.

However,  (as an example) element "Trck_BswySystms_Cooper_RSA_Profile Series_AR1111 Closed Back Integral Xfmr" has geometry for the reflector and lens of the lamp that does not appear to have a material.  I am currently just assigning a white generic material for these parts but it is not satisfactory as it occludes the embedded IES light source.

Question:  How do I get the material properties for all geometry?  Are there other properties I should be looking at?

Adam

[JimJia]

Dear Adam,

You may refer to this page, do you think it solve your request? http://thebuildingcoder.typepad.com/blog/2008/10/element-materials.html

Note that some API method is obsolete in latest Revit API, but you can find the latest code from here: http://thebuildingcoder.typepad.com/blog/2016/05/the-building-coder-samples-2017.html

[Anonymous]

Hi Jim

I am using the IExportContext class.

What I find during exporting is that when I perform:

document.GetElement(materialnode.materialId) as Material

I get a null material.  And materialnode.HasOverridenAppearance() is false.

I attached a screenshot of the spotlight I am exporting.  It contains an IES light which I correctly export, however the light source is behind some geometry that has no material assigned - so is assigned a default white material that blocks any light!

I am presuming that somewhere is some Asset that marks the geometry in front of the IES light source as glass or something transparent.

Adam

[JimJia]

Dear Adam, 

We checked the document you provided, unfortunately however it is hard to us to find a clue how to recreate this problem. In order to diagnose, could you isolate your test project and send us a small, reproducible sample? Note, please do not send us any information you think are confidential to your company. We appreciate your understanding and your patience again!