PH_CHAR stopped before touching ground

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PH_CHAR stopped before touching ground #383342
09/19/11 08:51 09/19/11 08:51

Joined: Feb 2010
Posts: 320
TANA/Madagascar

3dgs_snake Offline

OP
Senior Member

3dgs_snake Offline

OP
Senior Member

Joined: Feb 2010
Posts: 320
TANA/Madagascar

Hi,

PH_CHAR with pXent_move is stopped at some distance before colliding a static entity (A8.30.2).

Code:

#include <acknex.h>
#include <default.c>
#include <ackphysx.h>

void main()
{
	physX_open();
	
	// Set shadow
	shadow_stencil = 2;
	
	level_load("PLATE.WMB");
	wait(3);
	
	// Set camera
	vec_set(camera->x, vector(-265, -30, 90));
	vec_set(camera->pan, vector(0, -11, 0));
	
	// Create player
	ENTITY *e = ent_create("CUBE.MDL", vector(0, 0, 50), NULL);
	//vec_set(e->scale_x, vector(2, 2, 2));
	//vec_set(e->scale_x, vector(0.5, 0.5, 0.5));
	set(e, SHADOW);
	pXent_settype(e, PH_CHAR, PH_CAPSULE /*PH_BOX*/);
	
	// Create
	ENTITY *box = ent_create("CUBE.MDL", vector(20, 20, 50), NULL);
	set(box, SHADOW);
	pXent_settype(box, PH_RIGID, PH_BOX /*PH_CAPSULE*/);
	
	// Player movement
	var player_gravity = 0.1;
	var player_speed = 0;
	
	// 
	while(1)
	{
		// Add gravity to speed
		player_speed += player_gravity;
		
		// Move charachter downward
		pXent_move(e, NULL, vector(0, -2 * time_step, -player_speed * time_step));
		
		// Debug entity z
		DEBUG_VAR(e->z, 10);
		
		// Wait frame
		wait(1);
	}
}

Best regards.

PhysX 3 Plugin Box2D Plugin

Re: PH_CHAR stopped before touching ground [Re: 3dgs_snake] #383414
09/20/11 09:04 09/20/11 09:04

Joined: Feb 2010
Posts: 320
TANA/Madagascar

3dgs_snake Offline

OP
Senior Member

3dgs_snake Offline

OP
Senior Member

Joined: Feb 2010
Posts: 320
TANA/Madagascar

Hi,

Please, can someone explain the 8 quants, keeping a PH_CHAR from colliding into a static actor? Files

Code:

#include <acknex.h>
#include <default.c>
#include <ackphysx.h>

void main()
{
	physX_open();
	
	// Set shadow
	shadow_stencil = 2;
	
	level_load("PLATE.WMB");
	wait(3);
	
	// Set camera
	vec_set(camera->x, vector(-265, -30, 90));
	vec_set(camera->pan, vector(0, -11, 0));
	
	// Create player
	ENTITY *e = ent_create("CUBE.MDL", vector(0, 0, 100), NULL);
	//vec_set(e->scale_x, vector(2, 2, 2));
	//vec_set(e->scale_x, vector(0.5, 0.5, 0.5));
	set(e, SHADOW);
	pXent_settype(e, PH_CHAR, PH_CAPSULE /*PH_BOX*/);
	
	// Create
	ENTITY *box = ent_create("CUBE.MDL", vector(20, 20, 50), NULL);
	set(box, SHADOW);
	pXent_settype(box, PH_RIGID, PH_BOX /*PH_CAPSULE*/);
	
	// Player movement
	var player_gravity = 0.1;
	var player_speed = 0;
	
	ENTITY *sphere = ent_create(SPHERE_MDL, vector(-20, 0, 100), NULL);
	set(sphere, SHADOW);
	pXent_settype(sphere, PH_RIGID, PH_SPHERE);	
	pXent_setmaterial(sphere, vector(100, 0, 0), vector(100, 100, 100), vector(0, 1, 0));
		
	// 
	while(1)
	{
		// Add gravity to speed
		player_speed += player_gravity;
		
		// Move charachter downward
		pXent_move(e, NULL, vector((key_cuu - key_cud) * 2 * time_step, (key_cul - key_cur) * 2 * time_step, -player_speed * time_step));
		
		// Debug entity z
		DEBUG_VAR(e->z, 10);
		
		VECTOR temp;
		vec_set(temp, e->x);
		temp.z -= 1000;
		my = e;
		
		var dist = c_trace(e->x, temp, IGNORE_ME | USE_BOX);
		DEBUG_VAR(dist, 22);
		
		// Distance to ground
		DEBUG_VAR(e->z - dist, 34);
		
		//DEBUG_VAR(pX_stats(1), 50);
		
		// Wait frame
		wait(1);
	}
}

Thanks in advance.

Best regards.

PhysX 3 Plugin Box2D Plugin

Re: PH_CHAR stopped before touching ground [Re: 3dgs_snake] #383415 09/20/11 10:08 09/20/11 10:08
Joined: Oct 2004 Posts: 900 Lgh rojart User
rojart User Joined: Oct 2004 Posts: 900 Lgh	You use PH_RIGID not PH_STATIC, what exactly do you mean by static actor? 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

Re: PH_CHAR stopped before touching ground [Re: rojart] #383418
09/20/11 10:33 09/20/11 10:33

Joined: Feb 2010
Posts: 320
TANA/Madagascar

3dgs_snake Offline

OP
Senior Member

3dgs_snake Offline

OP
Senior Member

Joined: Feb 2010
Posts: 320
TANA/Madagascar

I used PH_RIGID for the box and sphere, but the level is PH_STATIC (created by physX_open()). Every frame, I move the box downward, but it is prevented from touching the ground. Below is a modified source code, and you can try to move to the left, but the PH_CHAR box can't touch the STATIC wall.

Code:

#include <acknex.h>
#include <default.c>
#include <ackphysx.h>

void main()
{
	physX_open();
	
	// Set shadow
	shadow_stencil = 2;
	
	level_load("PLATE.WMB");
	wait(3);
	
	// Set camera
	vec_set(camera->x, vector(-265, -30, 90));
	vec_set(camera->pan, vector(0, -11, 0));
	
	// Create player
	ENTITY *e = ent_create("CUBE.MDL", vector(0, 0, 100), NULL);
	//vec_set(e->scale_x, vector(2, 2, 2));
	//vec_set(e->scale_x, vector(0.5, 0.5, 0.5));
	set(e, SHADOW);
	pXent_settype(e, PH_CHAR, PH_CAPSULE /*PH_BOX*/);
	
	// Create
	ENTITY *box = ent_create("CUBE.MDL", vector(20, 20, 50), NULL);
	set(box, SHADOW);
	pXent_settype(box, PH_RIGID, PH_BOX /*PH_CAPSULE*/);
	
	// Player movement
	var player_gravity = 0.1;
	var player_speed = 0;
	
	ENTITY *sphere = ent_create(SPHERE_MDL, vector(-20, 0, 100), NULL);
	set(sphere, SHADOW);
	pXent_settype(sphere, PH_RIGID, PH_SPHERE);	
	pXent_setmaterial(sphere, vector(100, 0, 0), vector(100, 100, 100), vector(0, 1, 0));
	
	// Create static wall
	ENTITY *wall = ent_create(CUBE_MDL, vector(0, 40, 20), NULL);
	vec_set(wall->scale_x, vector(5, 0.5, 5));
	c_setminmax(wall);
	set(wall, LIGHT | SHADOW);
	vec_set(wall->blue, vector(150, 0, 0));
	
	pXent_settype(wall, PH_STATIC, PH_BOX);
	
	
	// 
	while(1)
	{
		// Add gravity to speed
		player_speed += player_gravity;
		
		// Move charachter downward
		pXent_move(e, NULL, vector((key_cuu - key_cud) * 2 * time_step, (key_cul - key_cur) * 2 * time_step, -player_speed * time_step));
		
		// Debug entity z
		DEBUG_VAR(e->z, 10);
		
		VECTOR temp;
		vec_set(temp, e->x);
		temp.z -= 1000;
		my = e;
		
		var dist = c_trace(e->x, temp, IGNORE_ME | USE_BOX);
		DEBUG_VAR(dist, 22);
		
		// Distance to ground
		DEBUG_VAR(e->z - dist, 34);
		
		//DEBUG_VAR(pX_stats(1), 50);
		
		// Wait frame
		wait(1);
	}
}

Best regards.

PhysX 3 Plugin Box2D Plugin

Re: PH_CHAR stopped before touching ground [Re: 3dgs_snake] #383426 09/20/11 11:58 09/20/11 11:58
Joined: Oct 2004 Posts: 900 Lgh rojart User
rojart User Joined: Oct 2004 Posts: 900 Lgh	ok, I see what you mean, normally you should to activate the ccd function, but there is something wrong with it. I'm very busy, right now, but I'll look into the physx source code what happens. 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

Re: PH_CHAR stopped before touching ground [Re: rojart] #384471 10/03/11 15:30 10/03/11 15:30
Joined: Oct 2004 Posts: 900 Lgh rojart User
rojart User Joined: Oct 2004 Posts: 900 Lgh	I found a solution to reduce the distances, in the pX_setunit (var scale); function you need to increase the scale factor. eg: Code: void main() { physX_open(); pX_setunit(5); ... 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

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