.obj -> .sur converter

ok i done some tests tonight
i don’t know if it can be usefull for you but …

test on the a9, multipart cmp —> it works like a charm

test on the colony3station (who is pretty big and complex … colony3 station) –-> no way, with several cmp, no differences, no hit registred and no hull detection

test on the avatar station, it seems to work
i noticed one strange thing, maybe it can be important for you to know

at avatar1.jpg, i can pass through
then at avatar2.jpg, i shoot on the base
and at avatar3.jpg, i can’t pass anymore
it’s the same place, exactly
i don’t know what the laser has done but can he “activate” the detection ?

http://img593.imageshack.us/g/avatar3y.jpg/

Nice tool Schmack, the recent updates make it work like a charm. still crashing on higher poly objects but that does not bother me at all considering sur meshes should not be 9K in poly count.

Nice thing is now that i can use lightwave to create the models, hardpoints, and sur mesh. only using Milkshape to convert the mesh to cmp.

next thing to have would be a tool to convert obj files to cmp, with a scaling factor. now that would be totally juicy to match this tool.

Cheers Mate, two thumbs up.

Schmackbolzen wrote:
@FF: Thanks ^^

@Mirkha: Don’t forget that it is attached to root only. I would say that’s why it did not work at all.

Concerning the flying through: I would have to test it myself with the model to be able to draw any conclusions.

Just so you know, Schmack, I redid all of FW:ToW surs using your converter, all 124 ships work flawlessly. Not only that, we saw some significant performance improvements

The only thing the exporter doesn’t do are the multiple component .surs but that’s such a small issue.

I’ll do the stations next and tell you how it goes.

Schmackbolzen wrote:
@Mirkha: Don’t forget that it is attached to root only. I would say that’s why it did not work at all.

Concerning the flying through: I would have to test it myself with the model to be able to draw any conclusions.

here the models if you want to test
http://svn.freeworlds.fr/FWMod/avatar.rar
and http://svn.freeworlds.fr/FWMod/colony3.rar

I have made a station sur with your soft, and i encounter CDT when trying to fly through, collision are OK but few second after some collision, CDT, don’t know if its the sur or the CMP of my station, will make another test without the sur and if CTD again, then the sur is GOOD and my cmp is crapy lol^^

ANyway, it’s a good job, and you soft let me make good surs for some ships which have previously bad surs

Thanks for your soft

Well i’ve tried this and managed to create a sur that fails every time on every model i’ve tried so far. Clearly i’m doing something wrong.

Process of what i’m doing is as follows,

1. Import model into MS as a cmp. ( Do i need to import the hardpoints as well?)
2. Export model as OBJ file (end up with an OBJ file and a MTL file)
3. Open new converter, import newly made OBJ file
4. Left the number as 5 (no real idea what it does anyway)
5. I tick the second box (because it seems to make sense)
6. Hardpoint section left blank (prob the cause of my errors tbh)
7. Can someone show exactly what needs to go in this section please. All very well saying stick the hardpoints in but how? What’s the format for inclusion? Is it,

addon = ge_kf_engine_01, internal, 1
equip = ge_kf_engine_01, internal, 1
ge_kf_engine_01, internal, 1

You see my point here? With no documentation how are those who didn’t go to sur school expected to work this out?

Any help appreciated

PS. No complicated replies please, pretend i don’t know anything about surs or this utilty

I was just about to post much the same ^
Interested in this tool… as i have some slightly unconventional ships and a few base models still in the hold due to my severe lack of understanding on anything sur related apart from click here do this

I only just finally wrapped my noggin around LS’s sur builder and its great for most ships as i don’t have many multipart ships… but as i said for a few, stock sur’s and close enough just won’t cut it.

So yeah… I too would love a rundown on the exact steps taken to get a .cmp into MS… to be ready for this tool. do we strip it 1st or just tell it to not import hardpoints… etc, what do the funky values do?.. and all that jazz

Gibbon, are you importing the SUR model, or the ship model itself? If it’s the SUR model, I’ve got nothing, but if it’s the ship model… As the internet meme goes, you’re doing it wrong. If you’re importing the ship model, the SUR it creates is far, far too complex, and will most likely hang the game. Use a simpler model in this case. Leaving the hardpoint section blank isn’t an issue, at least, it wasn’t with me.

Sushi wrote:

The only thing the exporter doesn’t do are the multiple component .surs but that’s such a small issue.

In what messed up universe is this a small issue? Is this a case of not detecting internet sarcasm, or do you really think this isn’t important?

depending on the ship’s mesh it should for fighters usually not be an issue to convert the whole geometry. for the hardpoints, you don’t need them from the cmp, just write down a list of hardpoint names as you called/want to call them in the cmp itself and you should be fine.

one more question i’d like though to ask myself as well: how exactly to change certain sur part’s attachment to other groups than “Root”? there is an offset, but where is it and do you have to encode the value of the nickname’s hash (or UTF ID) or can you, like in the cons nodes, input a string directly up to 32 bytes?

@mknote

I can’t import the sur model as i don’t have a sur to start with, that’s what the utilty is for lol. Which brings me to the next point you raised, how would i make the model simpler?

@ Gisteron

That’s kind of my point though with the hardpoints, how should it look if i want to put them in, what’s the format? Example please.

I have made about 20 fighter surs so far, have only tested 7 thoroughly. Those 7 have passed 6-8 hour stress tests .

Dev server is setup so that 2 factions fly the same ship with the new sur and shoot each other. Loadouts include guns, missles and torps. Zone set to spawn 30 npcs. Also have a base in the center shooting at both factions. I periodically jump in the middle and shoot at them, bump them with my shield down, and let them shoot me. No errors or crashes.

This is the method I use for fighters…

.cmp --> MS3D :

Import hard points and auto load, are the only boxes I check.

Then export to .OBJ

.OBJ to .SUR converter:

I leave the 1st box at default 5,0

Then I check 2nd and 3rd boxes.

Then enter the hardpoints in the order they are listed in HardCMP.

example:

HpCM01
HpEngine01
HpEngine02
HpMine01
HpMount
HpShield01
HpThruster01
HpTractor_Source
HpCloak01
HpTorpedo01
HpTorpedo02
HpWeapon01
HpWeapon02
HpWeapon03
HpWeapon04
HpWeapon05
HpWeapon06
HpWeapon07
HpWeapon08

Going on what StarTrader said about needing the hardpoints in the sur files,
I would think you must enter them or you will run into the random crashes everyone was getting with the previous methods.

For larger ships and stations with Vertices over 8-10k I use MS3D’s DirectX Mesh tools or LithUnwrap’s Optimize tool, to lower poly count. The DirectX mesh tools seem to work ok on some models, but not others. For the ones that dont, I Ctrl Z to undo any changes made by directx mesh and save as a MS3D file. Then open the mesh with LithUnwrap, Optimize and save then back to MS3D, weld vertices, export as .OBJ.

I also made 15 or more surs for battleships and large stations last night and will be testing those today. Will report back with results.

Gibbon wrote:
@mknote

I can’t import the sur model as i don’t have a sur to start with, that’s what the utilty is for lol. Which brings me to the next point you raised, how would i make the model simpler?

I’ll say it once more: this isn’t a magical big button “make perfect SUR”. It requires you to make the simple model from scratch (like you would have done before with the old MS3D SUR exporter) and then use that. Just like I said in the past, this is very likely to be how the original devs did, too.

@ Ben_Kai

Finally someone who understands where i’m coming from. Thanks very much for that, appreciate the heads up.

@FF

To paraphrase you FF, just like i said before, I’ve never messed with surs, used to use resized vanilla ones and it’s only recently i started using Lancers utilty because it does what i want and very easily. You’re assuming way too much that everyone understands this poxy format, and to a new modder what you say still doesn’t mean dick.

The whole point of a utility is that everyone can use it and not just the chosen few who understand the format. So enough with the as i said before nonsense and let’s have a full tutorial of this program so we can ALL use it. Get it?

FriendlyFire wrote:

I’ll say it once more: this isn’t a magical big button “make perfect SUR”. It requires you to make the simple model from scratch (like you would have done before with the old MS3D SUR exporter) and then use that. Just like I said in the past, this is very likely to be how the original devs did, too.

Acctually I call BS on that one…. Compared to what everyone had to go through before to get a sur that worked halfway decent.

It is quite magical. :lol:

Looking at the original ones I believe they were made like that.

If you want to go through and make 20 to 100+ simple models for all your fighters, capital ships, bases, etc, and waste your time, you can.

You don’t have to…

I have 9 tested surs, using the method I posted above, that I can upload to prove it.

For example i made some stations with about 2k-5k poly , export obj from ms3d , import to lightwave 3D , reduce polys , import to lithium unwrap , optimize model, import to ms3d , weld vertices , export obj from ms3d and make sur.
I saw the best obj for sur files are created from milkshape or lithium unwrapper.
You can also use ms3d`s DirectX mesh tool reduction to reduce polys to about 3-4k max .
Now the only thing that can be done with this tool is to made surs like groups in cmp file.

Schmackbolzen wrote:

Well this is also an issue which someone should test. In theory a collision mesh build only out of convex elements should be less a performance hit than a polygon reduced one. The important question is, how much difference does it make?

There is a difference, but it does not seem to be that much for your average setup. Im testing on an AMD64 @ 2.2 ghz with only 1 gig of ram. Im running FLServer and 1 instance of the client on the server box. When switching from resized vanilla surs to the ones I generated with your tool the server load only increases about 5 to 7 ms. This is with 25 -30 npcs and three player ships, all using the new surs.

Im sure if you use my method, and had 100 + players in the same system in a knot, you would notice a much larger performance difference. But I know of only 3 servers that get anywhere near that many players together and they have mod teams big enough to make new simple meshes for their ships….

My point was you don’t have to make all new meshes. If I ran Discovery or HC, then yea, new meshes would be the only way to go.

Performance was the 1st thing I thought of when I saw how large the 1st couple of surs I generated were. The Vanilla ones seem to average between 20-30 KB. Mine are between 90-110KB.

Edit I didn’t reduce the polys on any of the fighter surs I made. I think I will try that and see just how small I can get the surs, and then re-test…

Gibbon wrote:
@ Ben_Kai

Finally someone who understands where i’m coming from. Thanks very much for that, appreciate the heads up.

@FF

To paraphrase you FF, just like i said before, I’ve never messed with surs, used to use resized vanilla ones and it’s only recently i started using Lancers utilty because it does what i want and very easily. You’re assuming way too much that everyone understands this poxy format, and to a new modder what you say still doesn’t mean dick.

The whole point of a utility is that everyone can use it and not just the chosen few who understand the format. So enough with the as i said before nonsense and let’s have a full tutorial of this program so we can ALL use it. Get it?

You don’t need to understand the format? All you need to do is create a simple mesh for your collision detection. If you prefer for me to say it that way, make a REALLY low-detail mesh (something you’d use for a LOD so far away it’d be a blimp), and use that. I don’t see what’s so complicated about that. I’m not assuming people understand the format, I barely do. Sushi’s been working just fine using simple models (either poly-reduced versions of the CMPs or old SUR meshes that had been made for the old MS3D exporter).

It’s as simple as it gets, but it isn’t all automated.

EDIT: Ben_Kai, comparing vanilla meshes with these might not really say much. In the very best scenario (we understood the format perfectly and had experts in making the models), we’d have approximately the same performance.

What does matter is that custom SURs built using Schmack’s new exporter versus either LS’s tool or the old MS3D exporter are between 25% and 75% more efficient. That is a huge difference. Our Battle of Bilbringi went from 10-15 fps to 30-40 fps with server load going down from >50 ms to <10 ms.