else
	{
		j = sec->wallptr;
		ox = wall[wall[j].point2].x - wall[j].x;
		oy = wall[wall[j].point2].y - wall[j].y;
		i = nsqrtasm(ox*ox+oy*oy); if (i == 0) i = 1024; else i = 1048576/i;
		globalx1 = mulscale10(dmulscale10(ox,singlobalang,-oy,cosglobalang),i);
		globaly1 = mulscale10(dmulscale10(ox,cosglobalang,oy,singlobalang),i);
		globalx2 = -globalx1;
		globaly2 = -globaly1;

		ox = ((wall[j].x-globalposx)<<6); oy = ((wall[j].y-globalposy)<<6);
		i = dmulscale14(oy,cosglobalang,-ox,singlobalang);
		j = dmulscale14(ox,cosglobalang,oy,singlobalang);
		ox = i; oy = j;
		globalxpanning = globalx1*ox - globaly1*oy;
		globalypanning = globaly2*ox + globalx2*oy;
	}
	globalx2 = mulscale16(globalx2,viewingrangerecip);
	globaly1 = mulscale16(globaly1,viewingrangerecip);
	globalxshift = (8-(picsiz[globalpicnum]&15));
	globalyshift = (8-(picsiz[globalpicnum]>>4));
	if (globalorientation&8) { globalxshift++; globalyshift++; }

	if ((globalorientation&0x4) > 0)
	{
		i = globalxpanning; globalxpanning = globalypanning; globalypanning = i;
		i = globalx2; globalx2 = -globaly1; globaly1 = -i;
		i = globalx1; globalx1 = globaly2; globaly2 = i;
	}
	if ((globalorientation&0x10) > 0) globalx1 = -globalx1, globaly1 = -globaly1, globalxpanning = -globalxpanning;
	if ((globalorientation&0x20) > 0) globalx2 = -globalx2, globaly2 = -globaly2, globalypanning = -globalypanning;
	globalx1 <<= globalxshift; globaly1 <<= globalxshift;
	globalx2 <<= globalyshift;  globaly2 <<= globalyshift;
	globalxpanning <<= globalxshift; globalypanning <<= globalyshift;
	globalxpanning += (((long)sec->ceilingxpanning)<<24);
	globalypanning += (((long)sec->ceilingypanning)<<24);
	globaly1 = (-globalx1-globaly1)*halfxdimen;
	globalx2 = (globalx2-globaly2)*halfxdimen;

	sethlinesizes(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4,globalbufplc);

	globalx2 += globaly2*(x1-1);
	globaly1 += globalx1*(x1-1);
	globalx1 = mulscale16(globalx1,globalzd);
	globalx2 = mulscale16(globalx2,globalzd);
	globaly1 = mulscale16(globaly1,globalzd);
	globaly2 = mulscale16(globaly2,globalzd);
	globvis = klabs(mulscale10(globvis,globalzd));