Hello. I'm trying to add water to my map and it has weird lines around the edge's of it. How can I fix this? I know that water maybe should not be used in portal, but I would like to use it here anyway. Also, how can you stop people shooting portals into the water with out changing the texture?

Here's a picture of the lines problem:

Solomon wrote:
Also, how can you stop people shooting portals into the water with out changing the texture?

make a thin brush textured by the invisible texture and tie it to a func_noportal_volume - cover every place where you don't want portals to be created by these thin brushes.

Mek wrote:
make a thin brush textured by the invisible texture and tie it to a func_noportal_volume - cover every place where you don't want portals to be created by these thin brushes.

I think I understand. Thank you.

Mek wrote:
make a thin brush textured by the invisible texture and tie it to a func_noportal_volume - cover every place where you don't want portals to be created by these thin brushes.

I think I understand. Thank you.

EDIT: I pressed backspace and it reposted this. I'm sorry!

You can get rid of the lines on the edge of the water plane by adding a (thin) border around the water and making that a func_detail. (The edges of the water surface will be hidden inside in the border.)

Thanks!