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There are two ways to create glass. One way is simply create a brush that covers your window opening, and select a glass texture. However, if you do this, and then do the way I’ll show you in this tutorial, you’ll notice a difference in the see through ability of the glass… In other words, if you make a normal brush, the window is actually drawn twice.
Ok, start off by making a large room, actual size matters not. For this tutorial, it will be 256x512x256. Add your player start point. Put one light on each side of the map.
First we need to create an opening for the window:
Add a Wall about 16 units thick splitting the 512 into to halves. Make the wall approximately 156 units long and 64 units high. With it still selected, hit the spacebar, to duplicate it. Align the two brushes, and then move it up 64 units.
Your map should look thusly,
Now, with the brush still selected duplicate it again, re align it with the first and resize it to only 32 units long, then in the “Z” window drag it down so it splits the other two. Then duplicate it again, re align it, and move it to the other side of the opening.
If you’re following along you map now looks something like this,
Ok, now we have our opening.
Now create the window with a patch! Ok, create a simple brush out of the glass texture texture/glass/gass2_nvp make it so the brush is say 16 units thick and make it the length of our opening the height doesn’t matter.
SEE:
Now with the brush selected go up to the patch menu from the menu bar, and go down click on “simple patch mesh…” For now we aren’t even going to worry about the setting just click ok when the “simple patch mesh…” box pops up.
Ok if you followed along, you map now looks like this.
Notice that the brush now has no Height to it. The patch is horizontal and we want it vertical so with the patch selected click the Y-Axis Rotate button on the menu bar located @here follow the mouse pointer in this image
Unfortunately, the mouse didn't show up, the button you want is located directly above the left most side of, the box that says y-axis rotate. It looks like a Y right side up with a curved arrow pointing to a y lying on its side.
The patch then turns vertical, simply resize it vertically to cover the opening, like this,
This was in rendered mode. It must be in render mode to see the glass as it will be in game. Now you may play the map and check out the window
You'll notice, that when you fire at it with your pistil, it creates a tiny cracked “whole” (though the bullet does not go through the glass). This is a good effect for single player, but this effect, when shot with a rocket launcher, blackens the glass. So for multiplayer, you may wish to stop this effect.
Here is how you do that,
Start by going to textures/common/full_clip select this texture. Then create a brush that fully encases the glass and covers the entire opening it should look something like this,
I don't think clip brushes are show by default so you may not see the clip brush: If this happens you’ll need to go to the view menu run your mouse over show then make sure or check next to the “show clip brush” or hit ctrl+L
Now you may play the map, and you'll notice that bullets will not affect the window.
Ok, for breakable glass make sure you delete the clip brush, and select the glass patch. With the patch selected right click on the editor window to bring up the menu, choose func, then func_fracture. Shown here
The glass patch is now a func_fracture entity! Recompile, and play the game after 2 or 3 shots with the pistil it will now break!
Gee so many people wanted to know it it’s that easy! To make a glass breakable.
I hope this tutorial was helpful, Please post comments or problems or errors ect. As always if someone knows a better way of doing this or knows how to create breakable glass it would be a great tutorial thanks.
