Odd contradiction or unneeded flag

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Odd contradiction or unneeded flag #454307 09/03/15 20:10 09/03/15 20:10
M Malice Unregistered
Malice Unregistered M	I was reading the update thread and saw this http://www.conitec.net/beta/collision.htm Please view chart in the link -- damn spacing Quote: Obstacle Model, Sprite Model (POLYGON) Terrain, Map, Level c_trace Ray Polygon Ray Polygon Ray Polygon If c_trace is always striking a polygon hull, then why would you ever need the USE_POLYGON flag http://www.conitec.net/beta/c_trace.htm States.. Quote: USE_POLYGON Uses a polygonal hull of all target entities even if their POLYGON flag is not set. Only for entities with a collision model, i.e. when the WED PASSABLE flag was not set and collision_mode not deactivated at entity creation. It would seem to say model and model polygon both interact as polygon hulls. I can say for a fact that this whole section lead to much confusion for me as a nwebie. Including activating the USE_POLYGON flag in every trace. A habit I often revert to as noted in a post in the last 5 months were someone(maybe 3Run), corrected me again on this issue. Last edited by Malice; 09/03/15 20:12.

Re: Odd contradiction or unneeded flag [Re: ] #454309 09/03/15 20:18 09/03/15 20:18
Joined: Mar 2011 Posts: 3,150 Budapest sivan Expert
sivan Expert Joined: Mar 2011 Posts: 3,150 Budapest	I think if you c-trace a non polygon model you hit the bounding box (as I remember I had some problems because of it). but yes, the manual says different. Free world editor for 3D Gamestudio: MapBuilder Editor

Re: Odd contradiction or unneeded flag [Re: sivan] #454310 09/03/15 20:22 09/03/15 20:22
M Malice Unregistered
Malice Unregistered M	So then fair enough evidence to request a blame the manual post?

Re: Odd contradiction or unneeded flag [Re: ] #454312
09/03/15 20:31 09/03/15 20:31

Joined: Jun 2007
Posts: 1,337
Hiporope and its pain

txesmi

Serious User

txesmi

Serious User

Joined: Jun 2007
Posts: 1,337
Hiporope and its pain

I think the table is wrong.

The first column should say
ray > ellipsoid
ray > box ellipsoid
box > box

Try yourself

Code:

#include <acknex.h>

void main ()
{
	mouse_mode = 4;
	wait(1);
	level_load ( "" );
	camera->x = -60;
	ENTITY *ent = ent_create ( SPHERE_MDL, nullvector, NULL );
	vec_scale ( &ent->max_x, 2 );
	vec_scale ( &ent->min_x, 2 );
	while ( !key_esc )
	{
		VECTOR vecPos;
		vec_set ( &vecPos, &mouse_dir3d );
		vec_scale ( &vecPos, 1000 );
		c_trace ( &camera->x, &vecPos, NULL );
		if ( HIT_TARGET )
		{
			draw_text ( "EOEOE", mouse_pos.x, mouse_pos.y, COLOR_WHITE );
		}
		wait(1);
	}
	sys_exit ( NULL );
}

Last edited by txesmi; 09/03/15 20:34. Reason: sorry, sprites are boxes

Re: Odd contradiction or unneeded flag [Re: txesmi] #454313 09/03/15 20:34 09/03/15 20:34
M Malice Unregistered
Malice Unregistered M	@txesmi I will gladly take your informed opinion on face value. Also I don't want to reinstall the engine to test lol. Thank you

Re: Odd contradiction or unneeded flag [Re: ] #454314 09/03/15 20:43 09/03/15 20:43
Joined: Jun 2007 Posts: 1,337 Hiporope and its pain txesmi Serious User
txesmi Serious User Joined: Jun 2007 Posts: 1,337 Hiporope and its pain	Reinstall? Are you digging the manual without intalling 3dgs? Or did you uninstall it in a fury?

Re: Odd contradiction or unneeded flag [Re: txesmi] #454315 09/03/15 21:13 09/03/15 21:13
M Malice Unregistered
Malice Unregistered M	I'm using the online manual.I'm Haunting the forum. And yes I uninstalled it in fury. Little Malice throw a bunch of tantrums lately. Last edited by Malice; 09/03/15 21:16.

Re: Odd contradiction or unneeded flag [Re: ] #454316 09/03/15 21:58 09/03/15 21:58
Joined: Jun 2007 Posts: 1,337 Hiporope and its pain txesmi Serious User
txesmi Serious User Joined: Jun 2007 Posts: 1,337 Hiporope and its pain	Be water myfriend Peace&Ganja

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