# HoloLens 2 + Sketchfab

{% hint style="info" %}
Pre-requisites:

Download the following:

* Revit®️ 2020 or later software
* [Lumion® LiveSync® for Autodesk® Revit®](https://apps.autodesk.com/RVT/en/Detail/Index?id=1257010617153832891\&appLang=en\&os=Win64)
* [Blender 3D](https://www.blender.org/)

Create an account in [Sketchfab (free)](https://sketchfab.com/). 
{% endhint %}

### Setting Up 3D Model

1. Have your model ready in Revit then head to the Lumion plugin tab
2. Use Lumion Plugin's "Export" button to export in COLLADA (.dae):[ Click here to install](https://apps.autodesk.com/RVT/en/Detail/Index?id=1257010617153832891\&appLang=en\&os=Win64). 

<figure><img src="/files/HINnYBOmfR48dEWcciX0" alt=""><figcaption></figcaption></figure>

3. Click on "Export" and save it to your desired location.&#x20;

<figure><img src="/files/YvsBv1lJB7M5CkuTHdrU" alt=""><figcaption></figcaption></figure>

### Blender Scripting

4. Open Blender 3D and open the exported model. You will see that the model's textures are all black or transparent. We will change that using a code script.&#x20;
5. Switch to the Scripting Workspace.&#x20;

<figure><img src="/files/cfQn7wvGhoZXsfKVOvtq" alt=""><figcaption></figcaption></figure>

6. Click the \[+ New] button in the text editor to create a new text data-block.

<figure><img src="/files/5FbY8QRPtxQ4CiR3CJkV" alt=""><figcaption></figcaption></figure>

7. Copy the code from below and paste it into the text editor.

<pre class="language-python"><code class="lang-python"><strong>import bpy
</strong>for mat in bpy.data.materials:
    if hasattr(mat.node_tree, "nodes"):
        for node in mat.node_tree.nodes:
            if node.type == 'BSDF_PRINCIPLED':
                for input in node.inputs:
                    if input.name == 'Alpha':
                        input.default_value = 1
</code></pre>

8. Run the Python script by clicking on the green play button.

<figure><img src="/files/pc8z2M7aqmvZLmsOFH1V" alt=""><figcaption></figcaption></figure>

9. Once Blender is done running the script, the model should show its original colors as seen in Revit. Export to .fbx, .obj, or .dae. Recommend .dae for maintaining textures.

<figure><img src="/files/PxlFjwZLltuCKEvTiISo" alt=""><figcaption></figcaption></figure>

### Uploading to Sketchfab

10. Upload to Sketchfab. You can use a free account to do this.
11. Open your HoloLens 2 with the Sketchfab app logged into your account.&#x20;
12. Done! All you have to do now is to open your model uploaded and you can see it in augmented reality.&#x20;


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