From first person perspective it looks quiet cool. With the 3rd person camera you see that the car has not much grip

Yeah, It doesnt looks realistic. And also, it doesnt have much grip.

I made a mistake in the track modelling. I tryed to make the center of the track a little higher then the part closer to the grass.

This is making the physics react strange.
When the car goes into the turns, and even in the straight part, It changes direction a lot.

Only for fun, I will model another track, completely flat from side to side, to see what happens.

I Think the next step will be what Ventilator said : c-lite for the movement, physics for the collisions.

If I could manage the speed, turns and skkiding with Lite-c and, the PhysX for the collisions, I would get something nice.

I have a nice car behaviour wrote in c-script that I can port to c-lite easily.

My dount is : I know that we cant c_move a physics active object. Apart of this, I think... when the car collide with something, or another car... what could happen ? How to manage it ? Any ideas ?

Questions, too much questions.

Is your car the standard raycast car? If yes you can adjust the grip on the track with car_frictionLatF and car_frictionLatR. The default values are a little too small when the car is heavy.

I.ve faced problem with turning on flat levels too, they were made out of level blocks. I've seen that problem with another car examples which aren't made by me. May be that some kind of physX bug in game studio? Knights on wheels from samples folder has that problem as well...

Hi Tobias.

It Looks like this. I will check it later. Now I´m finishing a new track, better modelled, to work in the physics part without worry about imperfections in the asphalt.

Thanx for your tip.

This is being very difficult to understand / implement.

I´m using this code I found somewhere in the forums, and changed a few things to my convenience, but nothing that could break its functionallity :

______________________________________________________________

function simple_car()
{
vecGravity.x = 0;
vecGravity.y = 0;
vecGravity.z = -9.81;

pX_setgravity (vecGravity);

ENTITY* car = ent_create("F3.mdl",vector(6700,25500,5),NULL);

pXent_settype(car,PH_RIGID,PH_CONVEX);
pXent_setmass(car,1);

car.material = mtl_envmirror;
car.shadow = ON;

pXent_setmassoffset(car,vector(NULL,NULL,-3),vector(1,0.1,1)); //moves the center of mass 10 quants down.

ENTITY* BLwheel = ent_create("tyre.mdl",vector(car.x - 60,car.y - 20,car.z + 8 ),mass);
ENTITY* BRwheel = ent_create("tyre.mdl",vector(car.x - 60,car.y + 20,car.z + 8),mass);
ENTITY* FLwheel = ent_create("tyre.mdl",vector(car.x + 46 ,car.y - 25,car.z + 8),mass);
ENTITY* FRwheel = ent_create("tyre.mdl",vector(car.x + 46,car.y + 25,car.z + 8),mass);

pXcon_add ( PH_WHEEL, FLwheel, car, 0 );
pXcon_add ( PH_WHEEL, FRwheel, car, 0 );
pXcon_add ( PH_WHEEL, BLwheel, car, 0 );
pXcon_add ( PH_WHEEL, BRwheel, car, 0 );

pXcon_setparams2(BRwheel, NULL,vecBRwheel, vecBRwheel2);
pXcon_setparams2(BLwheel, NULL,vecBLwheel, vecBLwheel2);
pXcon_setparams2(FRwheel, NULL,vecFRwheel, vecFRwheel2);
pXcon_setparams2(FLwheel, NULL,vecFLwheel, vecFLwheel2);

while(1)
{

if(key_a)
{
speed += (1 * time_step);
}
else
{
if ( speed > 0
{
speed -= (1 * time_step);
}
}

if(key_z)
{
speed -= (1 * time_step);
}

if(key_n)
{
tyreAngle -= ( 2 * time_step) ;
}
else
{
if (tyreAngle < 0)
{
tyreAngle += ( 1 * time_step) ;
}
}


if(key_m)
{
tyreAngle +=( 2 * time_step);
}
else
{
if (tyreAngle > 0)
{
tyreAngle -= ( 1 * time_step) ;
}
}


pXcon_setwheel (FLwheel,tyreAngle,0,0);
pXcon_setwheel (FRwheel,tyreAngle,0,0); // steer to the right
//pXcon_setwheel (BLwheel,0,speed,0);
//pXcon_setwheel (BRwheel,0,speed,0);

var max_speed = 300;
var ang_force = speed * 100;

//pXcon_setmotor(car,vector(-ang_force, max_speed, 0), nullvector);
//pXcon_setmotor(car,vector(-ang_force, max_speed, 0), nullvector);

pXent_addvelcentral(car,vector(((speed) * time_step),0,0));
pXent_addvelcentral(car,vector(0,0,-10));

pXent_addvelcentral(FLwheel,vector(0,0,-50));
pXent_addvelcentral(FRwheel,vector(0,0,-50));
pXent_addvelcentral(BLwheel,vector((speed),0,0));
pXent_addvelcentral(BRwheel,vector((speed),0,0));

var temp[1];
var camTilt;
var camPan;
var cam_dist=0;
var CamFromWheel = 10;
var CamFromGround = 5;
var x_cam;

camera.arc = 72;
camera.clip_near = 0;
camera.clip_far = 100000;
camTilt = car.tilt ;
camPan = car.pan - 180 ;
cam_dist = clamp(0,CamFromWheel,20);
camera.x = ((((car.x))+ cos(camPan)*(cam_dist*cos(camTilt)))) + x_cam ;
camera.y = ((car.y + sin(camPan)*((cam_dist*cos(camTilt)))));
camera.z = car.z + 20 ;
vec_set(temp,car.x);
vec_sub(temp,camera.x);
vec_to_angle(camera.pan,temp);
camera.tilt = -3;
wait(1);
}
}


______________________________________________________________

but... an interesting thing is happening :

When the car is pointint to positive x vector, and I´m pressing the "a" key, it accelerates ok. then I turn 180 degrees in the track, and the orientation of the car is the opposite.

Then the car slows very fast, and it start to go in reverse !

It´s very disappointing, I know I´m very nooby in the PhisX thing, maybe also in coding, but this is so... weird...

Ipm really interested in learning and maybe applying what Ventilator said, but, if I can´t even manage to understand well this code above...

Well, any help or tips will be HIGHLY appreciated.

Cya

take a look at my PhysX car script in Aum 101

Thankyou, Painkiller.

I will check it tonight.

Is it in the download part of the AUM 101 ?

Yes, here aum101code\hot_forum\Painkiller - 2nd\PhysX_car_code