Hey,

I got a code that create a kind of volumetric fog using a model. My problem is that my model is moving (you can see how in the code). I want the fog to also move.. how can I do this? thanks!

Code:

---

 
action cloud_object
{
	my.skill1 = 0;
	my.alpha = 98;
	my.transparent = on;
	while(1)
	{
		
		// generate cloud particals once
		while (my.skill1 < ent_vertices(my)) // repeat till all vertices are passed
		{
			vec_for_vertex(temp.x,me,my.skill1);
			if (temp.z < my.z)
			{
				temp.z -= random(20); //temp.z -= random(20);
				temp.y += random(120)-60; //temp.y += random(120)-60;
				temp.x += random(20)-10; //temp.x += random(20)-10;
				effect(dark_cloud,1,temp,nullvector);	
			}
			if (temp.z < my.z-200)
			{
				temp.z += random(20);
				temp.y += random(120)-60; //temp.y += random(120)-60;
				temp.x += random(10)-5;
				effect(mid_cloud,1,temp,nullvector);	
			}
			if (temp.z > my.z)
			{
				temp.z += random(20);
				temp.y += random(120)-60; //temp.y += random(120)-60;
				temp.x += random(10)-5;
				effect(light_cloud,1,temp,nullvector);	
			}
			my.skill1 += 1;
		}
		//my.skill1 = 0;

		wait(1);
	}
	
	
	//MOVEMENT
	// NOTE: LAISSER LE CHIFFRE AVANT TIME_STEP PAREIL POUR TOUTES LES ACTIONS DE L'ORAGE.
	while(picked_angle == 0) { wait(1); } // wait until choose_way has run
	my.pan = picked_angle;
	while(1)
		{
			temp.x = 2*time_step; // change 2 to whatever speed you want
			temp.y = 0;
			temp.z = 0;
			c_move(me,temp,nullvector,null);
			wait(1);
		}
}
 

---

your first while loop is endless , the function will never reach the second while loop so its pointless to have it.
If I understand what this function does , if you move the model you attached the function to you'll move the fog too. So , before the code after "while(1) {" put my.x = player.x; my.y = player.y and my.z = player.z; and it'll move with the player. You could also put it before wait(1); if there are problems.

Thanks I'll give it a try

Here, note that I commented in the first while(1) loop. I also changed player to raincurtain, because this is the entity that generates the particles that is moving. I want the particles to follow this invisible entity, not the player.

I get no errors, but its not moving...

Code:

---

entity* raincurtain;

action cloud_object
{
	raincurtain = me;
	my.skill1 = 0;
	my.alpha = 98;
	my.transparent = on;
	//while(1)
	//{
		
	//MOVEMENT
	// NOTE: LAISSER LE CHIFFRE AVANT TIME_STEP PAREIL POUR TOUTES LES ACTIONS DE L'ORAGE.
	while(picked_angle == 0) { wait(1); } // wait until choose_way has run
	my.pan = picked_angle;
	while(1)
		{
			temp.x = 2*time_step; // change 5 to whatever speed you want
			temp.y = 0;
			temp.z = 0;
			c_move(me,temp,nullvector,null);
			wait(1);
		}
		
		// generate cloud particals once
		while (my.skill1 < ent_vertices(my)) // repeat till all vertices are passed
		{
			
			my.x = raincurtain.x;
			my.y = raincurtain.y;
			my.z = raincurtain.z;
			
			//clou();
			vec_for_vertex(temp.x,me,my.skill1);
			if (temp.z < my.z)
			{
				temp.z -= random(20); //temp.z -= random(20);
				temp.y += random(120)-60; //temp.y += random(120)-60;
				temp.x += random(20)-10; //temp.x += random(20)-10;
				effect(dark_cloud,1,temp,nullvector);	
			}
			if (temp.z < my.z-200)
			{
				temp.z += random(20);
				temp.y += random(120)-60; //temp.y += random(120)-60;
				temp.x += random(10)-5;
				effect(mid_cloud,1,temp,nullvector);	
			}
			if (temp.z > my.z)
			{
				temp.z += random(20);
				temp.y += random(120)-60; //temp.y += random(120)-60;
				temp.x += random(10)-5;
				effect(light_cloud,1,temp,nullvector);	
			}
			my.skill1 += 1;
		}
		//my.skill1 = 0;

	//	wait(1);
	//}
	
	

}

---

Maybe by giving the 'fog' its own movement script synched with the particles as an attached item or standalone.

I think a good way would be to "destroy" the particles after X frames, then Recreate them, using the new position of the generating entity... How can I do this?

Any Idea?

take a look at the aum#26 for a snippet