I've been using the Kingdom Hearts movement and camera for a while now, and never really had any problems when I was using blocks in wed. Now all my levels are models, and I'm having issues with clipping. I've been trying for the past few days to solve this but haven't been able to. I'm wondering if someone could help me out, I just want the camera to not clip through models, any help will be appreciated. Below is the camera function.

FUNCTION handle_camera() {
camera_pan -= mouse_force.x * 12 * time;
camera_tilt += mouse_force.y * 8 * time;
camera_tilt = clamp(camera_tilt,-70,50);

camera.pan = camera_pan;
temp = fcos(camera_tilt,-camera_distance);
vec_set(camera_move_to.x,vector(my.x + fcos(camera.pan,temp),my.y + fsin(camera.pan,temp),my.z + 20 + fsin(camera_tilt,-camera_distance)));

temp = min(1,2 * time);
camera.x += temp*(camera_move_to.x - camera.x);
camera.y += temp*(camera_move_to.y - camera.y);
camera.z += temp*(camera_move_to.z - camera.z);

vec_diff(temp.x,camera.x,my.x);
vec_normalize(temp.x,16);
vec_add(temp.x,camera.x);


IF (c_trace(my.x,temp.x,ignore_me) > 0) {
vec_diff(temp.x,my.x,target.x);
vec_normalize(temp.x,16);
vec_set(camera.x,target.x);
vec_add(camera.x,temp.x);
}

vec_diff(temp.x,my.x,camera.x);
vec_to_angle(camera.pan,temp.x);
}

I'm not sure but changing this line:
IF (c_trace(my.x,temp.x,ignore_me) > 0) {

to
IF (c_trace(my.x,temp.x,ignore_me) != 0) {

could solve the problem.
Reason:
c_trace returns a value smaller than zero if it hit a face/polygon from behind.
That happens is if the position it traces from is inside of a model.

I just tried that, and unfortunately it didn't help

So, how does the camera behave?
Does it just go through models like through "air" ?
Maybe you could set the use_polygon flag in the c_trace to force better detection.
But this is only guessing in the dark...

Yeah, the camera is passing through models. I've just done a few tests and I think I need to place the camera inside an entity so then I can use the collision box of the entity, if that makes sense. I'm not too sure how to do this, going to give it a go tomorrow.

You could also check the position with:
c_content(VECTOR* pos, mode)
(where as mode is not used yet)

result = c_content(temp.x,0);
If its inside a model the you pointer will be set by this instruction.

I allways used an entity as "carrier" for the camera and moved it with c_move - the solution worked good and was easy to handle.

does you model have the polygon or box flag attached?

You can first try changing:

IF (c_trace(my.x,temp.x,ignore_me) > 0) {
To
IF (c_trace(my.x,temp.x,ignore_me+use_box) > 0) {

If that doesn't fix it you can also make 16 a larger number in

vec_normalize(temp.x,16);
For example:
vec_normalize(temp.x,32);

That the larger that number is the farther back the camera will be placed from collision point (Target) on model or block.

Although I would write code like this if using use_box and c_trace:

c_trace(my.x,temp.x,ignore_me+use_box);
IF (trace_hit) {
vec_diff(temp.x,my.x,target.x);
vec_normalize(temp.x,16); // make 16 larger to pull camera farther off of collision point
vec_set(camera.x,target.x);
vec_add(camera.x,temp.x);
}


Loco

Thanks for the help, I think I've fixed it now.