I make some changes so that it works really well.

Try this one:

Code:
///////////////////////////////////////////////////////////////////////////////
#include <acknex.h>
#include <default.c>
#include <ackphysx.h>
///////////////////////////////////////////////////////////////////////////////
STRING* map01_str = "map1.wmb";
///////////////////////////////////////////////////////////////////////////////
function main(){
	// show all errors:
	warn_level = 6;
	// limit FPS:
	fps_max = 60;
	// set video parameters:
	video_set(800, 600, 16, 0);
	video_aspect = 1.333;
	// run physX:
	physX_open();
	// load the level:
	freeze_mode = 1;
	level_load(map01_str);
	wait(3);
	freeze_mode = 0;
}
///////////////////////////////////////////////////////////////////////////////
action hero_act(){
	VECTOR temp;
	// make me physical object:
	pXent_settype(my, PH_CHAR, PH_CAPSULE);
	// camera setup:
	camera.arc = 80;
	// main loop:
	while(1){
		// gui:
		draw_text("press space key to remove objects", 5, 5, COLOR_WHITE);
		// move entity:
		temp.x = 15 * (key_w - key_s) * time_step;
		temp.y = 15 * (key_a - key_d) * time_step;
		temp.z = 0;
		pXent_move(my, temp, nullvector);
		wait(1);
	}
}
///////////////////////////////////////////////////////////////////////////////
function ghost_ent(){
	// flags:
	set(my, PASSABLE | TRANSLUCENT);
	// alpha parameters: 
	my.alpha = 50;
}
///////////////////////////////////////////////////////////////////////////////
action char_act(){
	// create passable but visible model, to show you the bbox:
	ent_create("bbox.mdl", my.x, ghost_ent);
	// make me physical object:
	pXent_settype(my, PH_CHAR, PH_CAPSULE);
	// wait till space key is pressed:
	while(!key_space){ wait(1); }
	// unregister object from physX:	
	for(you = ent_next(NULL); you; you = ent_next(you))
	{
		if (you != ent_for_name("bbox_mdl_134"))
		{
			pXent_settype(you,0,0);
		}
	}
	// wait for a while:
	wait(-1);
	// remove object:
	ent_remove(my);
}
///////////////////////////////////////////////////////////////////////////////




Regards, Robert

Quote
Everything should be made as simple as possible, but not one bit simpler.
by Albert Einstein

PhysX Preview of Cloth, Fluid and Soft Body

A8.47.1P