Houdini Resources

Updated on Dec 13  2017

copyright  Deborah R. Fowler

Houdini Height Fields

Deborah R. Fowler

Houdini Height Fields:

Posted Sept 24  2017
Updated Sept 27  2017

Height fields are new in H16 and are 2D volumes that makes complex terrain light weight. There are new tools for height files (type hf in the tab menu) and much to explore.

Highly recommended places for information:

Two recommended places for data:

My brief notes from the above mentioned masterclass:

Height fields are storing 2D data but are treated as a volume (ie. height). There are no polys (and don't convert unless you want them to bog down your session). They use the gl tesselation shader on the video card.

Since they are volumes, you are use volume tools with them, volume blur, re-sample etc. They are tile based as well. Volume compress will reduce memory footprint, similar to how it is used for pyro). It is possible to create another matching volume and merge ie. height and rainfall.

height field visualation node
height field wrangle (really a volume wrangle)
hf copy layer

In the collisions tab there is a terrain object as the bullet solver is aware of height fields.
They are a new type of primitive to work with 2D data. The teal input is for height volumes, not polygons.

Some interesting results from others:

So cool to try:
1. Download a map (maybe your home town) from terrain.party
2. Create a geo node, dive inside, create a height field file node - read in your file.png
3. Increase the setting on the Height Scale

(Here is a quick sample with the Saskatchewan River in Saskatoon)