# Early Access Brief & Asset Sourcing

### Brief

1. Mesh selection is important, see [Finding Your Asset](#finding-your-asset) below for selecting a good asset to test with.
2. Timing of PBR generation depends on the resources we have available. We want to work with you to gather your thoughts and feedback, we are working on speeding up the pipeline.
3. To begin, only attempt one PBR generation at a time.

#### **What does success look like?**

* PBR generation in under 3 minutes. As mentioned, we are working on speeding this up.
* PBR results are viewable in the 3D viewer for every successful output.
* Downloadable asset packs are available for download for every successful output.
* You receive an albedo, roughness, IOR and metallic map.

#### **How to report if something has gone wrong?**

You have been invited to a Discord channel with the Marso Studio team in, please report any failed runs in there. 

Also report the following:

* If PBR generation takes over 5 minutes, even if it succeeds.
* If you cannot view the PBR result in the viewer even after a successful generation.
* You are unable to download your asset pack.
* You downloaded your asset pack, but it did not include albedo, roughness, IOR and metallic.

***

### Tips for Best Results <a href="#r2e" id="r2e"></a>

* Start with your best scans. The cleaner the input geometry and texture, the better the PBR output.
* Check your UVs. If results look mirrored or incorrect, check for overlapping UV islands.
* If downloading from Sketchfab, inspect in MatCap first. If the mesh looks bad without textures, PBR will only make that more visible.
* Try multiple assets. The model handles a wide range of materials — experiment with different object types to get a feel for what it does well.
* Your GLB file must be under 100MB.

***

### Finding Your Asset

#### Example Assets

We provide 10 example assets, already loaded into any new projects. You can get started with these to understand how Marso Studio works.

The assets provided are all Gen3D models.

<div align="left"><figure><img src="/files/I8IlWz0X7yN8aieMMjjs" alt="" width="188"><figcaption></figcaption></figure></div>

{% hint style="success" %}
The quality of your output is directly tied to the quality of your input. Marso Studio enhances materials — it doesn't repair bad geometry or compensate for poor scans.
{% endhint %}

More information on GLB & USD files can be found [here](/marso-studio/getting-started/early-access-brief-and-asset-sourcing/glb-usd-support.md).

#### What makes a good input?

A well-captured photogrammetry scan is ideal — clean geometry, well-defined surfaces, no mesh "boiling" or sloppy reconstruction artefacts. If you have your own scans, start there.

{% tabs %}
{% tab title="Good Mesh" %}

<figure><img src="/files/d4tmGS0be7BbgqzFd7gY" alt="" width="375"><figcaption></figcaption></figure>
{% endtab %}

{% tab title="Bad Mesh" %}

<figure><img src="/files/sFk9vvs411M2tZIWScl1" alt="" width="375"><figcaption></figcaption></figure>
{% endtab %}
{% endtabs %}

If you don't have a mesh at hand, you can browse Sketchfab for downloadable .glb assets. We've also put together a curated collection of objects that work well with Marso Studio — feel free to pick from those below, or find your own.

<details>

<summary>Our Sketchfab Collections</summary>

* [Auto PBR Results](https://sketchfab.com/m-xr/collections/auto-pbr-imagetomaterial-4137cee2eca94d4b9eb3376dbac359a0)&#x20;
* [Test Data](https://sketchfab.com/m-xr/collections/img2mat-test-data-ed113062403d410f85138cffdac018fc)

</details>

#### Evaluating a Mesh

When evaluating a mesh on Sketchfab, switch to MatCap view mode — this strips the textures and lets you inspect the geometry directly. You want to see clean, well-defined surfaces without noise, holes, or overlapping faces.

<div><figure><img src="/files/QK1SspgfHkuChZjadbDL" alt=""><figcaption></figcaption></figure> <figure><img src="/files/XcD5F5GkSwt77kov5xbP" alt=""><figcaption></figcaption></figure> <figure><img src="/files/Nvx5MCToVhn8pHm6ObSy" alt=""><figcaption></figcaption></figure></div>


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