tank issue for simfphys

[void summit]

Hello im trying to make my first tank and i encountered some issues with it. i dont care about the textures right now but i just need help. thanks

[tribal epoch]

Did you apply all the modifiers?

[glossy flint]

This to me looks like bad face orientation, I could be wrong but in blender there are 2 ways to check

Most simply way is to goto layout "show overlays" can be found at the top right [short cut is shift alt z] and click on face orientation for that object

[void summit]

This was already fixed

Thanks though

Shoutout to Ethan

[glossy flint]

Glad to hear

I just fixed my own issue just now :D.

[void summit]

Ahh I see lol

I have a question about collision model though

What is the right position to place it

[glossy flint]

Was having issues exporting animation

[void summit]

Hm

[glossy flint]

For myself, I copy the entire model

Then hull convex

[void summit]

In blender? What is that lol

[glossy flint]

Yes, copy your entire model, select the copied object, removing all textures, bevels ect.. then in edit mode making sure to select every vertex click mesh and you should see convex hull

[void summit]

What does it do just asking

Convex hill

Hull*

[glossy flint]

It's alittle complexed to describe exactly what's going on, just note it simplifies the mesh completely 😄

[void summit]

Is this the correct position lol

Blue is the collision model

Or what should the transform be

[glossy flint]

The collision model should be aligned along with the tank

[void summit]

Like wdym

Show me a visual example

[glossy flint]

Example you have cube1

Cube 2 is there just the same pos, width, height as cube 1

You can then use cube2 as the collision, cube 1 as the model itself, you will also need to specify in your qc, I do have some code I can share too

Also

If you copy and paste your model and it's on its side, I'd recommend setting location rotation/scale unless you already have animations you could get away with using an empty

As it should copy over the original model

You can see the cube that is not rotating is the collider used

[void summit]

Sorry for late response show me the qc please thanks

[glossy flint]

Include the following, more info found here https://developer.valvesoftware.com/wiki/$collisionmodel/en as this is very basic
$collisionmodel "mymodelphys.smd"
{
$mass 1
}

[void summit]

Hm

[glossy flint]

All I am doing for this model is defining the collision model & the mass of that object. reading the link provided you can include stuff alike

[void summit]

If I put the $masscenter to 0,0,0 it matches source code right

What does damping do 🤔

[glossy flint]

I have not a clue :D, these two are the only one's I've included so far. $mass & $inertia

[void summit]

What about $masscenter

If my collision model is 0,0,0 and I do it to $masscenter 0,0,0 does that work

[glossy flint]

If your centre of mass is already 0,0,0 then I wouldn't recommend

[void summit]

Oh ok but I still have a question

[glossy flint]

it should work yes

I've only used $mass, could try mess around with centre of mass make it offset, see if the object falls diffrent

[void summit]

That’s my visual explanation in png

[glossy flint]

In game your collision model is not aligned?

[void summit]

Yes… but in blender it’s set to 0,0,0

[glossy flint]

If you'd like to share screen I can give a shot at helping out

[glossy flint]

As I haven't had this issue

[void summit]

I’ll send a video

[glossy flint]

No worries

[void summit]

its sending rn

there

[glossy flint]

Send over the blend file it possible

[void summit]

Ok

dont expect textures, ill work onnat

[void summit]

here

[glossy flint]

& the other blend file

[void summit]

what

[glossy flint]

You have the blend file & blender file

[void summit]

ohhhhh

[void summit]

so whats the issue

[glossy flint]

Compiling now

[void summit]

unc i got the best compiler lol

no vert limit gang

[glossy flint]

ah I didn't think of that one

What compiler used?

Crowbar is what I use

[void summit]

ill compile it

i use crowbar but i have a different compiling software

Crak0kalos Studiomdl

so can u tell me what we wrong and what should i do

[glossy flint]

I'm compiling a lower polly to begin with

I may note your phys model is really too complexed

Not good for game performance unless that is not a worry

But also could cause unknown issues?

testing model now

So far it looks fixed

[void summit]

Not a worry lmao

[glossy flint]

It could be your compiler used or the mesh is too complexed gmod can't cope..

I took down the vert count and convexted the collision model

[void summit]

It’s probably the collision mesh 😭😭💀💀💀

[void summit]

Convex? I thought u didn’t know that lol

[glossy flint]

Most likely, you don't need it that complexed for good results

[void summit]

AAAAHH okay lol

[glossy flint]

I mentioned it lastnight

[void summit]

Ah lol

Alright send me the .qc and uhh yk the model n shi 💯💯

[glossy flint]

You sure you want the model? I took out a lot of detail for testing purposes

I only took out verts & convexed phys model, didn't change anything other

[void summit]

how do i convex that jaunt

how to convex physic model

[glossy flint]

This is what convexing does, you can clean it up but also convex the wheels separate too, think there is a qc command for merging separately exported but you have it all in a collection so no need 😄

1. Select your collision model

2. Edit mode and select every vertex

3. Goto mesh & convex hull

[void summit]

Ay thanks unc 💯💯

[void summit]

U da g 💪💯

[glossy flint]

No worries :).

[void summit]

i found the issue from hlmv

this is recent

[glossy flint]

I viewed the collision model on my side, everything was working fine

[void summit]

still doesnt work despite that....

heres my mine

[glossy flint]

I wonder

Make all the sequences idle if possible

[void summit]

sequence is what makes the tank move

and function

its not direclty the animations itself

[glossy flint]

Indeed, Just making sure as I had issues with sequences messing my object orientation

[void summit]

fire.smd and idle.smd plays a major role to make sure its positioned properly and animates properly

[glossy flint]

$maxconvexpieces 12 hmm is this really required on the collider?

[void summit]

whats the convexpieces i need

[void summit]

mf i dissected this from an M1128 MGS 💀

[glossy flint]

The model compiler limits a concave collision model to twenty convex pieces. This command can be used to override the limit if you are creating a Costly collision model. which now you are not so I'd remove it

Unlike before you would have needed this, just noticed it now in the qc

[void summit]

$collisionmodel "mct30_physics.smd"
{
$mass 1
$concave
}

like thus or nah

[glossy flint]

But that aside as for the wrong orientation on the collision I am not sure as it worked fine for myself

[void summit]

i mean you inspected the whole model right

[glossy flint]

Yes let me pull it back up.

[void summit]

and the .qc

[glossy flint]

Yes qc provided worked only you've now included all the animations on export

[void summit]

wdym

like you need all them anims files

[glossy flint]

Model you provided does not have any sequences

But as seen everything is where is should be

[void summit]

mf what????????????

i am confused

like bomboclat confused

[glossy flint]

There was no animations within the blend file you sent?

[void summit]

can i send it to you in dms