Which PBR workflow is used by Revit?

[Adam.Nicolas.Li]

Hello everyone,

I just learned two kinds of PBR for workflow.

The first one is Metal-Roughness.

The second one is Specular-Glossiness.

But I don't know which Revit uses?

many thanks for your help.

[barthbradley]

Which Rendering Software are you using?  

How to Use Physically Based Rendering (PBR) Materials in Revit Tutorial - YouTube

[Adam.Nicolas.Li]

I Learned that PBR usually classifies two workflows:

1. The Metal-Roughness workflow usually includes Base Color, Metallic, Roughenss.

2. The Spacular-Glossiness workflow includes Difuse, Specular Reflection, Glossiness.

I need to convert the rvt file to gltf 2.0 file. This is the probled I encountered when processing the PBR material information.

I found that in Revit, the new PBR materials without exclamation mart use Image, Reflectance, and Roughness.

Gltf 2.0 uses Metal-Roughness workflow, including Base Color, Metallic, and Roughness.

This confused me, so I want to know what kind of workflow Revit uses, so as to help me correctly convert the Image, Reflectance, Roughness in Revit to the PBR material of gltf 2.0

Can I directly transfer

    Revit Imange to gltf Base Color,

    Revit Roughness to gltf Roughness,

    Revit Reflectance to gltf KHR_materials_specular?

Or is there a better solution?

[ToanDN · Accepted solution]

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@Adam.Nicolas.Li wrote:

Can I directly transfer

    Revit Imange to gltf Base Color,

    Revit Roughness to gltf Roughness,

    Revit Reflectance to gltf KHR_materials_specular?

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Yes you can directly transfer those.

[barthbradley]

I have no idea how anybody on this planet could answer your question– much less get a solution credit – based on the scant information you’ve provided herein.

You say you need to convert the RVT file to glTF 2.0 file and you want to know what kind of “workflow” Revit uses to convert PBR materials to glTF 2.0.  Revit doesn’t “convert” or “directly transfer” PBR Materials to glTF 2.0. Revit doesn’t lay golden eggs either.  Catch my drift?   

COMING SOON FROM AUTODESK: Revit2GoldenEggExporter!  

[ToanDN]

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@barthbradley wrote:

I have no idea how anybody on this planet could answer your question– much less get a solution credit – based on the scant information you’ve provided herein.

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Just because you can't doesn't mean others can't.  It appears you posted a link to a video without even understanding the content.  

[barthbradley]

I could teach you a few things.   Have you read my books?  

[ToanDN]

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@barthbradley wrote:

I could you a few things.   Have you read my books?  

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I will look for it in Dozen-for-a-dollar bin.