I am adding a river to my map and have come across a bit of a problem.

I have made the river banks and bed from simple patch meshes, so I can bend them into the shape of the bank and the curve of the river. This works fine.

I have added the water brush and plonked an sfx on the top surface. All fine.

I then add another water brush next to the first and clip it to emulate a curve (following the river curve). Looks fine.

When I walk a player around on the river bed, everything is fine without the water brushes, but with the brushes in place, the player falls through the river bank at the patch joins. This ONLY happens when the water brush is there.

Any ideas?????

A.

I'm sure the smart guys will chime in here but let me take a guess:

When you made your water brush, does it extend below your terrain (river bed)? If so, maybe that's it. The engine sees this brush going lower than the terrain so it puts you all the way down.

Also, since water, by it's physical nature, isn't solid, it makes sense that you would not walk on top of it but rather below it. Maybe a simple caulk brush below the river bed would solve it.

I should have mentioned that I already thought of that.

It only happens at the join between two patches. The patches are lined up as close as I can get them, with a tiny overlap. All I can imagine is that the water changes the dynamics of the player such that if there is ANY kind of break in the terrain, it acts as a hole.

I suppose what I really need is advice on how to produce a convincing looking river bank at a bend in a river whilst still keeping the seamless effect of the water.

Thanks for the advice though,

A.

Do you know how to connect the vertices of the patches? When you select both patches and press V you get all the little dots right? Select the ones that are lined up with each other on the two patches and press K. That will connecte them and make it seamless.

Ctrl and K partner

Thanks for that guys,

I think I've sorted it now. It seems that the overlap in the terrain was just a bit too big when water is involved.

I do know about the vertex welding, but using a simple patch as opposed to a terrain mesh means that the vertices are nowhere near each other. There are also no vertices on the bend segements as this is again only available on terrain meshes, not simple patches.

I've found that lining up the edges of segments on simple patches is pretty tough (due to the bend on the patch) and the only way I have been able to counteract this effect is to overlap one patch over the other by about two units.

It's my first real stab at mapping, so bit by bit I'm getting there.

Thanks again.

A.