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// Shave and a Haircut
// (c) 2019 Epic Games
// US Patent 6720962
#include "basehair_tools.c"
#include "lotswfrs.c"
void MTcolor_clumpy( BASEHAIR *,BASEHAIR *, GLOBS * );
extern void
MAYAmake_a_curve( int current_samp, int slg, int hairnum, int segs, WFTYPE * ret, CURVEINFO * cret )
{
VERT offs;
WFTYPE geom;
int th = 0;
int x;
//float rr;
int hc = 0;
int hc2 = 0;
//char tmp[255];
int tv = 0;
//int didit;
offs.x = 0;
offs.y = 0;
offs.z = 0;
global_segs = 56;
cret->killme = 1;
if( ret->totalverts > 0 )
free_geomWF( ret );
ret->totalverts = 0;
ret->totalfaces = 0;
ret->totalfverts = 0;
geom.totalverts = 0;
init_geomWF( ret );
init_geomWF( &geom );
// free_geom(ret);
ret->totalverts = 0;
ret->totalfaces = 0;
ret->totalfverts = 0;
if( LOCAL_PASSES[slg] > 0 )
current_samp = current_samp % LOCAL_PASSES[slg];
GhairID = hairnum;
Gcurpass=current_samp;
Gpass = Gcurpass;
cret->depthpass = Gcurpass;
cret->hairID = hairnum;
if( total_slgfaces[slg] > 0 )
if( LOCAL_CNT[slg] > 0 )
if( LOCAL_PASSES[slg] > 0 )
{
int clones = 0;
int q;
clones = make_spline_hair( slg, hairnum, 0, segs, &geom, cret );
if( cret->killme == 0 )
{
if( clones == 0 )
clones = 1;
ret->totalverts = geom.totalverts * ( clones + 1 );
ret->totalfverts = geom.totalfverts * ( clones + 1 );
ret->totalfaces = geom.totalfaces * ( clones + 1 );
if( ret->totalverts > 0 )
alloc_geomWF( ret );
ret->totalverts = 0;
ret->totalfverts = 0;
ret->totalfaces = 0;
for( q = 0; q < clones; q++ )
{
int off, foff;
int jnk;
if( q != 0 )
jnk = make_spline_hair( slg, hairnum, q, segs, &geom, cret );
if( geom.totalverts > 0 )
{
off = geom.totalverts * q;
for( x = 0; x < geom.totalverts; x++ )
{
ret->v[ret->totalverts] = geom.v[x];
ret->v[ret->totalverts].z *= -1.0f;
ret->uv[ret->totalverts].x = cret->u;
ret->uv[ret->totalverts].y = cret->v;
ret->uv[ret->totalverts].z = geom.uv[x].z;
ret->velocity[ret->totalverts] = geom.velocity[x];
ret->velocity[ret->totalverts].z *= -1.0f;
ret->color[ret->totalverts] = geom.color[x];
ret->totalverts++;
}
for( x = 0; x < geom.totalfverts; x++ )
{
ret->facelist[ret->totalfverts] = geom.facelist[x] + off;
ret->totalfverts++;
}
foff = geom.totalfverts * q;
for( x = 0; x < geom.totalfaces; x++ )
{
ret->face_start[ret->totalfaces] = geom.face_start[x] + off;
ret->face_end[ret->totalfaces] = geom.face_end[x] + off;
ret->totalfaces++;
}
}
}
}
free_geomWF( &geom );
}
for( x = 0; x < ret->totalfaces; x++ )
{
float tp;
int y;
tp = ( float ) ( ret->face_end[x] - ret->face_start[x] );
tp -= 1;
if( tp < 1 )
tp = 1;
for( y = ret->face_start[x]; y < ret->face_end[x]; y++ )
{
ret->uv[ret->facelist[y]].z = ( float ) ( y - ret->face_start[x] ) / tp;
}
}
cret->depthpass = current_samp;
cret->hairID = hairnum;
}
int
MTmake_spline_hair( int slg, int hairnum, int clone, int segs, WFTYPE * geom, CURVEINFO * cinfo, GLOBS * gs )
{
VERT offs;
int index = 0;
// float rr;
// int x;
BASEHAIR lowhair;
init_a_hair(&lowhair);
//static BASEHAIR hh[1];
////WFTYPE tmpwf;
global_segs = 56;
//// init_geomWF(&tmpwf);
////tmpwf.v=NULL;
////tmpwf.totalverts=segs;
// offs.x=0.0f;
// offs.y=0.0f;
// offs.z=0.0f;
offs.x = 0.0f;
offs.y = 0.0f;
offs.z = 0.0f;
// geom->totalverts=0;
////if (clone==0)
{
// int yy;
//lowhair[0]=
//#ifndef NOLIB
gs->segs=segs;
MTdraw_lotsWF( slg, hairnum, offs, clone, &lowhair, cinfo, gs );
// fprintf (stdout,"A lowhair.index = %d\n",lowhair.index);fflush(stdout);
//#endif
//#ifdef NOLIB
// draw_lotsWFFAST(slg,hairnum,offs,clone,&lowhair,cinfo);
//#endif
}
// lowhair[0]=draw_lotsWFNEW(0,0,offs,1,junkh);
/// resample(lowhair[0],&hh[0]);
// hh[0]=cut_single_hair(hh[0]);
// hh[0]=cut_single_base_hair(hh[0]);
index = 1;
free_geomWF( geom );
// if (lowhair.killme==0)
if( cinfo->killme == 0 )
//// if (lowhair.restlength>0)
if( lowhair.cutlength == 0.0f )
cinfo->killme = 1;
if( cinfo->killme == 0 )
if (lowhair.cutlength>0)
{
int xx;
//geom will get allocated in here?
resize_base_hair( &lowhair, geom, cinfo, segs );
// fprintf (stdout,"B geom->index[0] = %d\n",geom->index[0]);fflush(stdout);
//geom->totalverts=segs;
geom->totalfaces = 1;
//geom->totalfverts=segs;
//alloc_geomWF(geom);
for( xx = 0; xx < geom->totalverts; xx++ )
geom->facelist[xx] = xx;
geom->face_start[0] = 0;
geom->face_end[0] = geom->totalverts;
if( lowhair.cutlength == 0 )
cinfo->killme = 1;
//mk_spline_geom(&hh[0], geom, segs);
}
if( cinfo->killme )
{
// lowhair.dreadcount = 0;
geom->totalverts = 0;
geom->totalfaces = 0;
geom->totalfverts = 0;
}
return ( ( int ) lowhair.dreadcount );
}
void MTcolor_clumpy( BASEHAIR *h,BASEHAIR *centerClump, GLOBS *gs )
{
int x;
for (x=0;x<15;x++)
{
float qq;
qq=h->clump_color_strength;
if (qq>1.0f) qq=1.0f;
if (qq<0.0f) qq=0.0f;
h->color[x].x=h->color[x].x*(1.0-qq)+centerClump->color[x].x*(qq);
h->color[x].y=h->color[x].y*(1.0-qq)+centerClump->color[x].y*(qq);
h->color[x].z=h->color[x].z*(1.0-qq)+centerClump->color[x].z*(qq);
}
}
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