Overlap is a keyword here, which we need to address further. This means that where two bodies with different dielectric priorities overlap, the one with the highest priority gets rendered instead of the other. Using Dielectric Priorityĭielectric priority gives some bodies priority over others.

A third option is to use dielectric priority. This is a quick fix that may work, but the result might not get you quite where you want – the water is not really filling the glass as it should. The easiest is to make the glass 100% opaque, but where’s the fun in that? Another approach is to make the water body a bit smaller. Thus we get this weird unnatural pattern. Whether the rendering engine interprets the water as penetrating and reaching inside the glass body, or staying on the outside like it should, is arbitrary. This can be seen to the left in the image above. Rendering Transparent Bodies and Coincident Facesīy default, when rendering a glass of water (if the water perfectly fills the glass), you will get artifacts where the water and glass meet. If you create a box on top of another box you will get a coincident face as well. However, if you want to make this look nice when rendering it, and the container is transparent, you might get some issues.Ĭoincident faces aren’t limited to containers as described above.

There’s nothing wrong with this by itself.

This means that the faces of the content occupies the same space as the inner faces of the container. When modelling a container with a content like fluid, or anything else that completely fills a portion of the container, you will get coincident faces. One render done using dielectric priority and one without. However, this is a principle that probably will work elsewhere as well, given you have access to similar dielectric priority options. This is a short tutorial on how to avoid unwanted rendering behavior for coincident faces in Fusion 360.

Rendering in fusion 360