Dynamic Vehicle Deformation Mod - VehDeform v1.2b (GTA San Andreas)

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VehDeform v1.2b - Dynamic Vehicle Deformation

----- HOTFIX! v1.2b -----

Fixed a bunch of small/big crashes, please update it xD

Hello guys, it is me again :D

As promised, here is the VehDeform released to the public. Thanks again to all my supporters — you guys have no idea how much I'm thankful for all of you <3

How TO Install ?

Installation Video Must Watch

This v1.2 version brings a bunch of optimizations, fixes and additions:

Boats are now deformable! VehFuncs vehicles with wheel variations now work correctly (wheels won't be deformed). 

Optimization options for low-spec PCs. 

HUGE optimizations for high-poly vehicles.

More options in the .ini file. 

Peds inside the vehicle can now die depending on the impact. 

Vehicle ID ignore list added — vehicles on this list won't deform. 

Fixed crash caused by added weapons. 

Player can now exit vehicles even if they have no wheels — no more soft-locking! 

And many more small improvements...

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11/06/2025 Update

Hello everyone, long time no see :)

Vehicle Deformation is finally here — check out the new trailer!

(Went full on with the Touhou references this time xd)

After the first video trailer, the mod got way more attention than expected. At that time, the mod was still very early and kinda bad — but the video made it look better than it was, so I had to fully commit to developing it.

Originally, this was an experiment for PumaStudio. Alyy阿丽 had asked me to make a function to change object textures in-game. While working on that, I discovered the RpMorphTarget struct that contains vertex data, and thought: "Why not move those verts on impact?" And here we are :D

To deform each vehicle individually, I had to overcome how GTA SA shares geometry data between all vehicles. Now, each vehicle gets its own copy of vertices when spawned, allowing unique deformation.

Inside the mod, you’ll find VehDeform_CFG.ini, which includes many adjustable values.

Most important: impactMult, which controls impact deformation strength.

Vehicle rigidity is based on handling mass:

High mass = strong body

Low mass = fragile body

The script allows deformation by weapons too. Weapon damage values from weapon.dat affect how much the vehicle body deforms. Melee and explosion damage are hardcoded but can also be tweaked in the .ini file.

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Mod Compatibility

Tested mods that work with VehDeform:

ENB: ✅ ImVehFt: ✅ SAMP: ✅ SkyGfx: ✅ VehFuncs: ✅ PumaStudio: ✅

Custom Vehicles?

Yes, it works with any vehicle — no special setup required. If a vehicle has proper dummies (bumps, doors, windscreen, etc.), VehDeform adds a popping mechanic based on vertex displacement.

Some custom vehicles may not work, but it's rare.

Also works with:

Bikes, planes, helicopters (with mixed results).

Can disable non-car deformation in the .ini if needed.

This mod is not just a shader — it also modifies collision, affecting gameplay.

If unwanted, disable collision deformation in the .ini.

To enter debug mode:

Type VDBG in-game, then use arrow keys to tweak values like impactMult, gunMult, etc. (Note: changes are not saved.)

Includes a mini FX system for better impact visuals.

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IMPORTANT NOTES

The mod is still unstable.

Expect random crashes. 

Some custom cars may cause lag due to multiple geometry caches. 

Unknown compatibility with story missions (haven’t tested). 

No mobile version — don’t ask!

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REQUIRED TOOLS

SilentPatch

Silent ASI Loader 

Open Limit Adjuster 

Modloader

Click Here to Download

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CREDITS

All Plugin-SDK Contributors

Special Thanks

SimBoRRis – Debug Testing

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You can Download this mod from here