Models for testing tessellation

[Josh]

These models are made by @Vida Marcell and were useful in testing my tessellation algorithm. To see the effect, open the model in the project explorer, then select the Tools > Smart Tessellation menu item. The editor will automatically enable tessellation on all materials when you do this, and it calculates various properties that control tessellation behavior.

tessmodels.zip

 

Simple clean geometry works best. Correct normals are very important. Sometimes you can fix errors by selecting the Tools > Update Normals menu item first.

Models can use either quads or triangles. Quads are better but both will work. GLTF does not support quads natively, so Quads can only be imported from OBJ files...unless you import an OBJ and save as GLTF, then it will use a custom extension to store the quads in glTF.

As you can see, tessellation curves with hard edges can be automatically detected and work really nicely, if the geometry is clean. This is a pretty big change in the art pipeline because you only need to model the lowest-resolution version of your model, and tessellation can take care of the rest for you.