> For the complete documentation index, see [llms.txt](https://alexander-ameye.gitbook.io/water-caustics-for-urp/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://alexander-ameye.gitbook.io/water-caustics-for-urp/support/limitations.md).

# Limitations

Some limitations that come with the shader.

{% hint style="danger" %}
**2D Renderer**

This shader will not work with the 2D renderer in URP. 
{% endhint %}

{% hint style="danger" %}
**Direct3D12**

Unity themselves mark Direct3D12 as *experimental* so it's always possible that you see artifacts or drops in frame rate.
{% endhint %}

{% hint style="danger" %}
**SSAO bug**

There is a bug in URP where the caustics might not show up on terrain if you have an SSAO pass present which has its source set to *Depth Normals*.
{% endhint %}