CSG Hollow

k47a · Post by **k47a** » Mon Apr 11, 2005 11:44 am

I know how to use the hollow tool for square stuff like windows and stuff like this...
Now what if I wanna make a round window or an arch? I tried it but in the end the hole ended up sqare...

At0miC · Post by **At0miC** » Mon Apr 11, 2005 1:38 pm

You can also use curve for this, but first the brush one:

You can do it like on this image I made, the brushes in green and yellow are clipped, so they are now triangles or penta-angles, the window looks round. To make them, use the clipper tool (search for an icon with 3 blue dots and 3 lines), just select the brush, place dot 1 at one side of the brush, then place dot 2 at the other side, then you can move with the dots untill you got the right angles in the brush, be sure to clip the corners on the right grid, or you could get a broken brush. (!: don't use dot 3) Then hit enter.

k47a · Post by **k47a** » Mon Apr 11, 2005 1:41 pm

Thanks man! Do I have to hollow it first and put the brushes in afterwards?
What about cruve? I tried it but really had loads of problems...

k47a · Post by **k47a** » Mon Apr 11, 2005 1:50 pm

Thanks, I'm hungry anyway...

Edit: now this is in fact the answer to the next post???

Mj · Post by Mj » Mon Apr 11, 2005 1:52 pm

My advise would be: Use patch meshes! Its very handy to know, as CGS or w/e it is causes Rad to crash often, and those surfaces that you subtract and end up with usually end up doing something wierd

But you can use CSG subtract very usefully... don't tell anyone, but most of my current map is subtracted

(i'm turning into a n00b

) As long as you Ctrl + G (snap to grid) everything you subtract.

Recipe:

You will require:

1 PC
MoHRadiant
Medal of Honor
A wok
Some smarties

Ok, start up rad, and build a wall. Simmer for 20 minutes, and then create a brush, about the size you want the round window. Go to the toolbar, select brush, and select arbitary sided, put 12 in, press ok, and add to the wok. Meduim heat for 5 mins. Ctrl + G the brush which now has 12 sides, to a 1 gridscale (therefore it will not lose too much roundness) Rotate the round brush so you can subtract it from the wall. Peel some smarties and add them to the wok. Select the entire wall and Ctrl + G, again at gridscale 1. Serve with cauliflower and cheese...

Feeds 1200

Or use At0miCs method

(bugger beat me to it

)

At0miC · Post by **At0miC** » Mon Apr 11, 2005 1:55 pm

You don't have to use the hollow tool, just make several brushes and place then together just like above in the image.

To use the curve one,

Go to the curve tab > primitives > end cap.

You will get somekind of arc, to make it closed, keep the end cap selected then:

Go to the curve tab > cap > inverted endcap.

Now resize it then you can copy and paste it and rotate it, if you did it allright it will fit to each other, your round window is done now, now you can place some brushes around it.

If you want a window with 1 arch, just use one end cap

k47a · Post by **k47a** » Mon Apr 11, 2005 5:54 pm

Ay, that's real cool! Thanks a lot mate

Finally I'm gonna be able to make some windows

wacko · Post by **wacko** » Mon Apr 11, 2005 10:07 pm

One more thing:
Best way to texture the cap (the flat pieces) in case u want it to have the same texture as the surrounding wall, is to select the cap and click the walltexture next to it with ur middle mouse button. It'll look a bit brighter in radiant but ingame it'll be fine.

k47a · Post by **k47a** » Tue Apr 12, 2005 6:06 am

Mj wrote: As long as you Ctrl + G (snap to grid) everything you subtract.

Err, Ctrl + G??? I, hmm, rarely use that

. In fact, I only use it when I'm directly ordered to in a tutorial

Is it very bad not to use it? What does it do anyway?

wacko · Post by **wacko** » Tue Apr 12, 2005 6:09 am

-IvaN- wrote:Err, Ctrl + G??? I, hmm, rarely use that . In fact, I only use it when I'm directly ordered to in a tutorial
Is it very bad not to use it? What does it do anyway?

Err, it makes the vertices snap to the grid. After having cut brushes, the new vertices might end up somewhere in between the grid. This is bad when u want to place another brush next to it because these brushes might intersect then and also it can cause trouble during compile

k47a · Post by **k47a** » Tue Apr 12, 2005 6:17 am

Do I have to do that with everything I make?

Like textures and so on...???

lizardkid · Post by **lizardkid** » Tue Apr 12, 2005 6:36 am

no, what happens is you make a clipped brush and the resulting vertices get caught in the midpoint between grid units. such as ths.

-------|
-------|
-------O--------
-------|
-------|

where the O is the vertice. technically nothing can exist in the points between units, so this generates errors as well as if another brush were placed over it

ctrl-G just skips the vertex over to a nearby unit.

texturing doesn't move the brush so it's not affected.

k47a · Post by **k47a** » Tue Apr 12, 2005 6:44 am

Phew, I'm very glad then...

Thanks - I guess I really should use Ctrl + G from now on...

Mj · Post by Mj » Tue Apr 12, 2005 7:55 am

side effects of not Ctrl + G ing can be dissapearing brushes, and ones that dissapear at weird times (like when you walk up to them

)

technically nothing can exist in the points between units

It can work on X 1214.761 (trust me, half my map is build like that

- if I Ctrl + G ed most would dissapear

)

k47a · Post by **k47a** » Tue Apr 12, 2005 1:59 pm

Aw, damn, I guess that's why I'm missing some textures in the game!!!!

@??#!