Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
image_set_txcos_default(3)	 Arcan Lua API	    image_set_txcos_default(3)

NAME
       image_set_txcos_default	- Revert to the	default	set of texture mapping
       coordinates.

SYNOPSIS
       nil
       image_set_txcos_default(	vid, mirror )

DESCRIPTION
       The engine, by default, manages texture coordinates for video  objects.
       In  some	 rare  instances  however, the developer may want to hand-tune
       these in	the pre-rendering stages rather	than modifying the coordinates
       in a shader. To revert back to the default behavior, this function  can
       be  used.  If mirror is set to a	non-zero integer, the mapping generate
       will be flipped along the Y axis	to compensate for the arcan coordinate
       system having origo in the upper	left corner whileas Open GL  uses  the
       lower left.

EXAMPLE
       function	image_set_txcos_default0()
	     a = random_surface(64, 64);
	     b = null_suface(32, 32);
	     image_set_txcos(a,	{0.1, 0.5, 0.2,	0.4, 0.8, 0.2, 0.6, 0.7});
	     show_image({a, b});
	     image_sharestorage(a, b);
	     image_set_txcos_default(b);
       end

SEE ALSO:
       image_set_txcos(3) image_get_txcos(3)

image				  April	2025	    image_set_txcos_default(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=image_set_txcos_default&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>

home | help