The SUB system so far does the better result, but would be nice if it was a simpler way and with less weird geometry to subtract meshes.
1 year ago(+1)
there is only a more complicated way:
using the main bsp (it re-optimises the quads - but it's meant for large areas)
anyway the steps for this:
- make a cylinder
- select it
- press numpad 1
- make another cylinder inside it
- flip it (with console command FLIP)
- press numpad 7
- now use the console command: BTOQ 0
this turns the bsp group 0 into a single quad mesh (and it should be selected now)
this can be used to make more advanced CSG stuff
also this bsp method is good for making large areas
but can get out of hand pretty quick
you can rebuild the bsp it with the ) or 0 key (whatever you got to the right of 9)
or using the console command BSP
you can assign bsp groups with the console command BG (e.g. BG 1)
there are about 30 groups and group 0 is the default
numpad 1 is for adding
numpad 7 is intersect
if you want to make a whole map using it I recommend starting with an intersected room as the first one
it's kind of like the dynamic bsp unreal uses, but only good for about 100 meshes
and there is no check if there is an error in your mesh (you need to make sure yourself)
and error in this case means a hole somewhere (use the noexport texture to add holes)
shapes can be concave - but sometimes it goes haywire - with missing triangles out of nowhere
(the groups are a work around for this )
and I recommend using the red 'noexport' texture to stick areas together
alas I usually just used the default 8 sided pipes that the editor auto generates
so making these detailed pipes is tricky
1 year ago(+1)
I think I'm starting to get the gist now. I'll try do more test to see what's the best method. Talking about that, when I press B to make a box shaped mes, sometimes it comes out with an empty hole in the middle ( much like with pressing C multiple times you can have a different way to raise cylinder) but it isn't always working as well as I espected to.
1 year ago(+1)
yes, you can also use the mousewheel to change it
(alas I thought it would come useful for something)
anyway I made an extended tutorial for the BSP stuff:
https://imgur.com/a/6nWq71E
let me know what you think
1 year ago(+1)
By working with BPS, I've come across this sort of weird bug that is happening in my map, maybe I'm doing something wrong but part of the the meshes doesn't seem to properly disappear to make a hole:
This seems to happen with wall meshes that aren't perfectly perpendicular, although I haven't verified yet.
1 year ago(+1)
I'm afraid the BSP is not completely bug free - so these will happen now and then 😔
the thing is it's a technique that was never really meant to be used dynamically and it's hard
to predict what might cause an error (something to do with floating point errors adding up as the tree grows)
my only workaround (or recommendation) is to use multiple groups when you can
(of course there might be some other cause - I cannot tell for sure without looking a the map itself)
1 year ago(+1)
I tried replicating the BPS bug within a test map to see if this was something that specifically happened in sloped walls. Seems like the BPS work fine for the most part here:
The most obvious bug is at certain moments some meshes of the BPS will outright disappear for no apparent reason:
Seems like the real problem happen in my large map, where all the meshes that are supposed to disappear just remain in the carved hole, which doesn't seem the case in other maps I've made, and I don't understand how to possibly solve this issue.
1 year ago(+1)
I'm afraid it's completely random (seemingly at least) sometimes it works great - sometimes don't 😔
one solution is to set your original wall to have the 'noexport' texture and make another room next to it in a different BSP group (with it's wall facing inwards also 'noexport')
in other words when the BSP fails there is no other choice but do a little manual carving (at least to glue two groups together)