curved stairs using regular brushes.
This tutorial shows how to create a spiral staircase of 12 steps.
Normally in Quake2, each step is 16 units high, so the total
height will be 192 units. You can use different sizes of course.
images are from QERadiant but building curved staircases is
something you can do with any other capable Quake2 editor, although
some things might look or work different.
do I use a 12 sided cylinder? Mainly because it gives the most
economical and convincing curve, less sides will make it look
blocky and more sides will only complicate things. It's tricky
enough so keep it simple.
Make a brush: 384 x 384 x 16 (for example), duplicate it and place
both brushes ontop of eachother.
Select the top brush and while selected go to:
>> Brush > Abitrary sided... 12 sides
<3> Now select the bottom
brush and diagonally cut it into 4 pieces (2 cuts). These cutlines
will serve as guides, you can however remove them later on if
they distract you.
<4> [Set Grid 4].
Select the cylinder and snap all 12 vertexes to the grid, staying
closest to the orignial shape of your 12 sided cylinder.
Time to cut the cylinder into 12 parts.
Using the vertex points or corners of the cylinder as a guide,
make the first cut from one corner to the opposite corner. Select
both freshly cut parts and make the second cut. Repeat this until
you have 12 parts, six cuts in total.
Make a center brush (the smaller the brush, the wider the steps
will be) and with it selected go to:
>> Brush > Abitrary sided... 12 sides. The same as you
did in step 2.
<7> [Set Grid 2]. Align/snap
all 12 vertexes (of the new inner cylinder) to the grid, closest
as possible to your cutlines.
After that, delete one "half" (5 step parts) of your
cylinder. We will mirror the other half later to save some time.
<9> [Set Grid 2]. Following
the shape of the inner cylinder, cut off the seven inner parts.
(You'll notice the marked vertexes are slightly off the grid.)
Manually snap those to the grid... again using the inner cylinder
shape as your guide. (Don't move the vertexes of your inner cylinder,
just the ones of the seven slices.)
<11> [Set Grid 8]. Duplicate
these 5 parts, flip them horizontally and put them in place.
that's pretty much it. Switch to a high grid (eg. 32) for safety
reasons, and stretch up the inner cylinder.
(Then cut the top and bottom off at the desired height)
Select all 12 steps and raise them to their 'up' position. Deselect
what's going to be the first step and sink the other 11 steps
16 units. Deselect the second adjacent step and sink the other
10 another 16 units, etc.
Now if you want to make a round staircase that only goes 90
degrees around a corner you can use parts of your spiral-straircase
The advantage of the prefab is that you can easily select a
corner for every direction, without having to rotate stuff and
move things off of the grid.