You have just one variant name "Cabin" and assigned it onto all collisions? When you create any variant on a model, you loose the default variant that is created on export automatically (when no other variants available). So, if your "Cabin" variant is an additional variation, yo...

detached set of polygons should be given a proper name, so this is a new part with correct name. you need to create a collision for the door (and give it a proper name and settings of course). You have to export both model.yft and model_hi.yft files as the hierarchy has changed.

in GTA the geometry of the model is still just one piece made of vertices and polygons. This geometry is bound to skeleton and its bones and the game animate skeleton bones only (when you open the door or bonnet), only skeleton's bone is moved/rotated. Geometry is bound to skeleton's bones on per-ve...

No, trial license is removed when you delete platform ID from web account.
I have submitted platform ID onto your account again with new trial license, mind to assign password on "My computers" page.

yes. I assume the reflection strength is controlled by alpha channel of base AO texture, as this is something that should not be a constant value across entire material/surface.

ohh... wait a minute.. the truckpaint material does not support "env_factor" option anymore.
What is your game version? Is this an original game's material you are referring to with "truckpaint" shader and "env_factor" option in it?

yes, it will not be created on import. However, when you created this option, does exported material contain env_factor: {0.6, 0.6, 0.6} ?

type the property name first. it will enable "Add" button.

make sure you have "codelib.zmx" file located in "Shared" folder inside ZModeler folder.
Once you applied validation and see "Revalidate in ... days", press OK, close ZModeler and reboot your computer.

Most likely you have a jammed "zmodeler3.exe" process in background that causes files access conflict. Once you apply validation key, close ZModeler and wait 5-7 seconds. Then run ZModeler again.

I have a backup of 3.2.1.1195 on my hard drive and it applies fresh validation key fine.

There was a discussion earlier on this subject that "env_factor" parameter is obsolete for "truckpaint" shader, so the value of Output Level on ENVMAP texture slot (translated to "env_factor" material parameter) should not produce any effect in game. You can override th...

move ZModeler folder from a system drive to another drive if possible. Do you see a spinning circle in the bottom of ZModeler window when you start it? (check for updates). Does it stop spinning in few seconds or keep spinning all the time? Show a screenshot of your ZModeler's "About" wind...

may you show the original .mat file and the generated .mat file please?

no. in properties of every material there is a "user-defined options" page.

Hello. Make sure to run ZModeler as Administrator. The password you specify in ZModeler on "Account Setup" page is not your account password. This is the password you assign onto your platform ID on "My computers" page. You can clear password for your platform ID in web account a...

it might be suppressed by user-defined option. Take a look there. If there is no an associated option, the Output level of ENVMAP is used; if option is present, it's value is written in a .mat file. This applies to every .mat property - availability of user-defined option with property name will sup...

Hello.
Get the latest ZModeler version and make sure license key is installed. When you run ZModeler, "License Information" window should not appear automatically. If it does, no license key was loaded at startup and import/export function was not initialized.

Hello. You are using an old ZModeler version that requires manual license validation. Manual license validation key counts in full days and does not respect time zones over the globe. The web account on request of new validation key got zero days left (even though you had quite many hours left at th...

the engine dummy is likely to point the game where the engine is located, so the damage in this area can cause the vehicle to stop running; also, it is the point for failed engine smoke emitter. I think it could be related to the sound handling (engine/exhaust). You can probably figure this out by t...

as a quick test, move this object out of the frame (3-5 meters away) and render it again. Just to find out whether this is self-affecting issue or some objects around give this effect. If this is a self-affecting case (still get bad shading on this object), send me a .z3d file with just this problem...

seems like the game doesn't like the collision of your model. If you have used geometry collision objects, select COL geometries, open "Mesh->Vertices->Format" branch on properties page and toggle off "Deformable". Press Apply and export again.

the hierarchy got messed is the most likely cause. When you make any changes in vehicle_hi.yft model and export this file, you have to update vehicle.yft file respectively, as the game takes hierarchy (parts/bones assignment) from the model.yft file and applies them to the geometry of model_hi.yft f...

most likely this is configured in vehicle's metadata, not in the .yft file itself.

No. If the emissiveMultiplier parameter is higher than 20.0 on import, it is added as user-defined property. Value in range 0..20 is converted to ZModeler's Emissive color level 0..100 (by multiplying to 5). On export, availability of emissiveMultiplier user-defined property is checked. If it is ava...