physics boulders?

[Geowil]

Is ther a way to add noise to a brush without displacementing it? For a kind of boulder looking brush.

I am attempting to make a kind of landslide where boulders and other debris will block out the path.

[Kalenzo53]

You could make spherical brushes and turn them into func_physboxes. From there you could manipulate the verticies to make them look natural.

[o0OpsyphiO0o]

you couldn't d that using vetice manipulation. becuase you have to keep a single normal per plave you have to keep at least two edges perpendicuar. long story short you couldn't raise manipulate an edge on a brush and then nmanipulate perpendicular edges on any other brush that is in a stright row or column with that rush. I'd say you want to do some simple modelling.

[haymaker]

yeah modeling probably the best bet, especially as dynamic brushes have poor support for lighting.

But you can "fake" a displacement boulder thusly:

Create a spike brush that has a triangle for a base, so that all faces have 3 edges, 3 vertices.
This way it will be impossible to create coplanar faces. Copy that wedge a pile of times around in a spherical arrangement and snap the vertices together. Now you can fashion your bumpy boulder by selecting intersecting vertices, and tie the whole thing to func_physbox

[o0OpsyphiO0o]

yeah thats the way. I'd be happy to fashion you one and sen it to you as a prefab if u pm me your email :)

EDIT: scratch that. I've never been able to make an invalid triangle brush until I tried this. Don't know how it happened but I got a strange error.

[haymaker]

wow what was the error?