22bb395305
Fixed svc_setangles and sv_bigcoords. Model code is now responsible for transforming traces instead of it being generic. This fixes rotating things getting stuck in players in hexen2. The renderer now generates a list of surfaces to draw. Backend now performs rotations/scaling per entity. This fixes sorting order, at least when not using realtime lights. Hidden items in the hexen2 inventory that you do not have. Added colourmapping for hexen2. Should be easier to click on menu items for hexen2. git-svn-id: https://svn.code.sf.net/p/fteqw/code/branches/wip@3602 fc73d0e0-1445-4013-8a0c-d673dee63da5
954 lines
19 KiB
C
954 lines
19 KiB
C
#include "quakedef.h"
|
|
|
|
#ifdef RUNTIMELIGHTING
|
|
#if defined(GLQUAKE) || defined(D3DQUAKE)
|
|
|
|
|
|
extern model_t *lightmodel;
|
|
#define bsptexinfo(i) (*i)
|
|
#define dsurfedges lightmodel->surfedges
|
|
#define dvertexes lightmodel->vertexes
|
|
#define dedges lightmodel->edges
|
|
#define texinfo_t mtexinfo_t
|
|
#define Q_PI M_PI
|
|
#define Error Host_Error
|
|
#define byte qbyte
|
|
|
|
#define dfaces lightmodel->surfaces
|
|
#define dplanes lightmodel->planes
|
|
#define dface_t msurface_t
|
|
#define dvertex_t mvertex_t
|
|
#define point position
|
|
|
|
#define side flags & SURF_PLANEBACK
|
|
|
|
#define scaledist 1
|
|
#define rangescale 0.5
|
|
#define extrasamples 1
|
|
#define scalecos 0.5
|
|
|
|
|
|
|
|
|
|
typedef struct mentity_s {
|
|
vec3_t origin;
|
|
float light;
|
|
float angle;
|
|
float cone;
|
|
int style;
|
|
vec3_t colour;
|
|
char classname[64];
|
|
char target[64];
|
|
char targetname[64];
|
|
|
|
struct mentity_s *targetent;
|
|
} mentity_t;
|
|
|
|
static mentity_t entities[8192];
|
|
static int num_entities;
|
|
|
|
#define bsp_origin vec3_origin
|
|
|
|
/*
|
|
============
|
|
CastRay
|
|
|
|
Returns the distance between the points, or -1 if blocked
|
|
=============
|
|
*/
|
|
vec_t CastRay (vec3_t p1, vec3_t p2)
|
|
{
|
|
trace_t trace;
|
|
vec3_t move;
|
|
|
|
lightmodel->funcs.Trace (lightmodel, 0, 0, NULL, p1, p2, vec3_origin, vec3_origin, &trace);
|
|
if (trace.fraction < 1)
|
|
return -1;
|
|
|
|
VectorSubtract(p1, p2, move);
|
|
return VectorLength(move);
|
|
}
|
|
|
|
|
|
|
|
|
|
static void ParseEpair (mentity_t *mapent, char *key, char *value)
|
|
{
|
|
double vec[3];
|
|
|
|
if (!strcmp(key, "classname"))
|
|
strcpy(mapent->classname, value);
|
|
|
|
else if (!strcmp(key, "target"))
|
|
strcpy(mapent->target, value);
|
|
|
|
else if (!strcmp(key, "targetname"))
|
|
strcpy(mapent->targetname, value);
|
|
|
|
else if (!strcmp(key, "light") || !strcmp(key, "_light"))
|
|
mapent->light = atoi(value);
|
|
|
|
else if (!strcmp(key, "style") || !strcmp(key, "_style"))
|
|
mapent->style = atoi(value);
|
|
|
|
else if (!strcmp(key, "angle") || !strcmp(key, "_angle"))
|
|
mapent->angle = atof(value);
|
|
|
|
else if (!strcmp(key, "cone") || !strcmp(key, "_cone"))
|
|
mapent->cone = atof(value);
|
|
|
|
else if (!strcmp(key, "origin"))
|
|
{
|
|
sscanf (value, "%lf %lf %lf", &vec[0], &vec[1], &vec[2]);
|
|
mapent->origin[0]=vec[0];
|
|
mapent->origin[1]=vec[1];
|
|
mapent->origin[2]=vec[2];
|
|
}
|
|
|
|
else if (!strcmp(key, "colour") || !strcmp(key, "color") || !strcmp(key, "_colour") || !strcmp(key, "_color"))
|
|
{
|
|
sscanf (value, "%lf %lf %lf", &vec[0], &vec[1], &vec[2]);
|
|
mapent->colour[0]=vec[0];
|
|
mapent->colour[1]=vec[1];
|
|
mapent->colour[2]=vec[2];
|
|
}
|
|
}
|
|
|
|
void LightLoadEntities(char *entstring)
|
|
{
|
|
#define DEFAULTLIGHTLEVEL 300
|
|
mentity_t *mapent;
|
|
char key[1024];
|
|
int i;
|
|
int switchedstyle=32;
|
|
num_entities = 0;
|
|
|
|
while(1)
|
|
{
|
|
entstring = COM_Parse(entstring);
|
|
if (!entstring || !*com_token)
|
|
break;
|
|
if (strcmp(com_token, "{"))
|
|
{ //someone messed up. Stop parsing.
|
|
Con_Printf("token wasn't an open brace\n");
|
|
break;
|
|
}
|
|
|
|
mapent = &entities[num_entities];
|
|
memset(mapent, 0, sizeof(*mapent));
|
|
mapent->colour[0] = 0;
|
|
mapent->colour[1] = 0;
|
|
mapent->colour[2] = 0;
|
|
while(1)
|
|
{
|
|
entstring = COM_Parse(entstring);
|
|
if (!strcmp(com_token, "}"))
|
|
break;
|
|
strcpy(key, com_token);
|
|
entstring = COM_Parse(entstring);
|
|
ParseEpair(mapent, key, com_token);
|
|
}
|
|
if (!mapent->colour[0] && !mapent->colour[1] && !mapent->colour[2])
|
|
{
|
|
int cont;
|
|
vec3_t v;
|
|
v[0] = mapent->origin[0];
|
|
v[1] = mapent->origin[1];
|
|
cont=0;
|
|
for (i = 0; i < 256; i+=16)
|
|
{
|
|
v[2] = mapent->origin[2]-i;
|
|
cont = lightmodel->funcs.PointContents (lightmodel, NULL, v);
|
|
if (cont & (FTECONTENTS_LAVA | FTECONTENTS_SLIME | FTECONTENTS_SOLID))
|
|
break;
|
|
}
|
|
if (cont & FTECONTENTS_LAVA)
|
|
{
|
|
mapent->colour[0] = 1;
|
|
mapent->colour[1] = i/256.0;
|
|
mapent->colour[2] = i/256.0;
|
|
}
|
|
else if (cont & FTECONTENTS_SLIME)
|
|
{
|
|
mapent->colour[0] = 0.5+0.5*i/256.0;
|
|
mapent->colour[1] = 1;
|
|
mapent->colour[2] = 0.5+0.5*i/256.0;
|
|
}
|
|
else
|
|
{
|
|
if (mapent->style == 9) //hmm..
|
|
{
|
|
mapent->colour[1] = 1;
|
|
}
|
|
else
|
|
{
|
|
if (!strncmp(mapent->classname, "light_torch_small_walltorch", 12))
|
|
{
|
|
mapent->colour[0] = 1;
|
|
mapent->colour[1] = 0.7;
|
|
mapent->colour[2] = 0.7;
|
|
}
|
|
else
|
|
{
|
|
mapent->colour[0] = 1;
|
|
mapent->colour[1] = 1;
|
|
if (strncmp(mapent->classname, "light_fluoro", 12))
|
|
mapent->colour[2] = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!mapent->light && !strncmp (mapent->classname, "light", 5))
|
|
mapent->light = DEFAULTLIGHTLEVEL;
|
|
|
|
if (*mapent->targetname && !mapent->style && !strcmp(mapent->classname, "light"))
|
|
{
|
|
for (i = 0; i <= num_entities; i++)
|
|
{
|
|
if (entities[i].style >= 32 && !strcmp(entities[i].targetname, mapent->targetname))
|
|
{
|
|
mapent->style = entities[i].style;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i == num_entities)
|
|
mapent->style = switchedstyle++;
|
|
}
|
|
|
|
|
|
num_entities++;
|
|
}
|
|
|
|
for (mapent = entities; mapent < &entities[num_entities]; mapent++)
|
|
{
|
|
if (*mapent->target)
|
|
{
|
|
for (i = 0; i < num_entities; i++)
|
|
{
|
|
if (mapent == &entities[i])
|
|
continue;
|
|
|
|
if (!strcmp(mapent->target, entities[i].targetname))
|
|
{
|
|
mapent->targetent = &entities[i];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#else
|
|
#define mentity_t entity_t
|
|
#define UTILITY
|
|
#include "light.h"
|
|
|
|
#define bsptexinfo(i) texinfo[i]
|
|
|
|
|
|
/*
|
|
============
|
|
CastRay
|
|
|
|
Returns the distance between the points, or -1 if blocked
|
|
=============
|
|
*/
|
|
vec_t CastRay (vec3_t p1, vec3_t p2)
|
|
{
|
|
int i;
|
|
vec_t t;
|
|
qboolean trace;
|
|
|
|
trace = TestLine (p1, p2);
|
|
|
|
if (!trace)
|
|
return -1; // ray was blocked
|
|
|
|
t = 0;
|
|
for (i=0 ; i< 3 ; i++)
|
|
t += (p2[i]-p1[i]) * (p2[i]-p1[i]);
|
|
|
|
if (t < 1)
|
|
t = 1; // don't blow up...
|
|
return sqrt(t);
|
|
}
|
|
|
|
#endif
|
|
|
|
/*
|
|
===============================================================================
|
|
|
|
SAMPLE POINT DETERMINATION
|
|
|
|
void SetupBlock (dface_t *f) Returns with surfpt[] set
|
|
|
|
This is a little tricky because the lightmap covers more area than the face.
|
|
If done in the straightforward fashion, some of the
|
|
sample points will be inside walls or on the other side of walls, causing
|
|
false shadows and light bleeds.
|
|
|
|
To solve this, I only consider a sample point valid if a line can be drawn
|
|
between it and the exact midpoint of the face. If invalid, it is adjusted
|
|
towards the center until it is valid.
|
|
|
|
(this doesn't completely work)
|
|
|
|
===============================================================================
|
|
*/
|
|
|
|
#define SINGLEMAP (18*18*4)
|
|
|
|
typedef struct
|
|
{
|
|
vec3_t lightmaps[MAXLIGHTMAPS][SINGLEMAP];
|
|
vec3_t lightnorm[MAXLIGHTMAPS][SINGLEMAP];
|
|
int numlightstyles;
|
|
vec_t *light;
|
|
vec_t facedist;
|
|
vec3_t facenormal;
|
|
|
|
int numsurfpt;
|
|
vec3_t surfpt[SINGLEMAP];
|
|
|
|
vec3_t texorg;
|
|
vec3_t worldtotex[2]; // s = (world - texorg) . worldtotex[0]
|
|
vec3_t textoworld[2]; // world = texorg + s * textoworld[0]
|
|
|
|
vec_t exactmins[2], exactmaxs[2];
|
|
|
|
int texmins[2], texsize[2];
|
|
int lightstyles[256];
|
|
int surfnum;
|
|
dface_t *face;
|
|
} llightinfo_t;
|
|
|
|
|
|
/*
|
|
================
|
|
CalcFaceVectors
|
|
|
|
Fills in texorg, worldtotex. and textoworld
|
|
================
|
|
*/
|
|
static void LightCalcFaceVectors (llightinfo_t *l)
|
|
{
|
|
texinfo_t *tex;
|
|
int i, j;
|
|
vec3_t texnormal;
|
|
float distscale;
|
|
vec_t dist, len;
|
|
|
|
tex = &bsptexinfo(l->face->texinfo);
|
|
|
|
// convert from float to vec_t
|
|
for (i=0 ; i<2 ; i++)
|
|
for (j=0 ; j<3 ; j++)
|
|
l->worldtotex[i][j] = tex->vecs[i][j];
|
|
|
|
// calculate a normal to the texture axis. points can be moved along this
|
|
// without changing their S/T
|
|
texnormal[0] = tex->vecs[1][1]*tex->vecs[0][2]
|
|
- tex->vecs[1][2]*tex->vecs[0][1];
|
|
texnormal[1] = tex->vecs[1][2]*tex->vecs[0][0]
|
|
- tex->vecs[1][0]*tex->vecs[0][2];
|
|
texnormal[2] = tex->vecs[1][0]*tex->vecs[0][1]
|
|
- tex->vecs[1][1]*tex->vecs[0][0];
|
|
VectorNormalize (texnormal);
|
|
|
|
// flip it towards plane normal
|
|
distscale = DotProduct (texnormal, l->facenormal);
|
|
if (!distscale)
|
|
Error ("Texture axis perpendicular to face");
|
|
if (distscale < 0)
|
|
{
|
|
distscale = -distscale;
|
|
VectorNegate (texnormal, texnormal);
|
|
}
|
|
|
|
// distscale is the ratio of the distance along the texture normal to
|
|
// the distance along the plane normal
|
|
distscale = 1/distscale;
|
|
|
|
for (i=0 ; i<2 ; i++)
|
|
{
|
|
len = VectorLength (l->worldtotex[i]);
|
|
dist = DotProduct (l->worldtotex[i], l->facenormal);
|
|
dist *= distscale;
|
|
VectorMA (l->worldtotex[i], -dist, texnormal, l->textoworld[i]);
|
|
VectorScale (l->textoworld[i], (1/len)*(1/len), l->textoworld[i]);
|
|
}
|
|
|
|
|
|
// calculate texorg on the texture plane
|
|
for (i=0 ; i<3 ; i++)
|
|
l->texorg[i] = -tex->vecs[0][3]* l->textoworld[0][i] - tex->vecs[1][3] * l->textoworld[1][i];
|
|
|
|
// project back to the face plane
|
|
dist = DotProduct (l->texorg, l->facenormal) - l->facedist - 1;
|
|
dist *= distscale;
|
|
VectorMA (l->texorg, -dist, texnormal, l->texorg);
|
|
|
|
}
|
|
|
|
/*
|
|
================
|
|
CalcFaceExtents
|
|
|
|
Fills in s->texmins[] and s->texsize[]
|
|
also sets exactmins[] and exactmaxs[]
|
|
================
|
|
*/
|
|
static void LightCalcFaceExtents (llightinfo_t *l)
|
|
{
|
|
dface_t *s;
|
|
vec_t mins[2], maxs[2], val;
|
|
int i,j, e;
|
|
dvertex_t *v;
|
|
texinfo_t *tex;
|
|
|
|
s = l->face;
|
|
|
|
mins[0] = mins[1] = 999999;
|
|
maxs[0] = maxs[1] = -99999;
|
|
|
|
tex = &bsptexinfo(s->texinfo);
|
|
|
|
for (i=0 ; i<s->numedges ; i++)
|
|
{
|
|
e = dsurfedges[s->firstedge+i];
|
|
if (e >= 0)
|
|
v = dvertexes + dedges[e].v[0];
|
|
else
|
|
v = dvertexes + dedges[-e].v[1];
|
|
|
|
for (j=0 ; j<2 ; j++)
|
|
{
|
|
val = v->point[0] * tex->vecs[j][0] +
|
|
v->point[1] * tex->vecs[j][1] +
|
|
v->point[2] * tex->vecs[j][2] +
|
|
tex->vecs[j][3];
|
|
if (val < mins[j])
|
|
mins[j] = val;
|
|
if (val > maxs[j])
|
|
maxs[j] = val;
|
|
}
|
|
}
|
|
|
|
for (i=0 ; i<2 ; i++)
|
|
{
|
|
l->exactmins[i] = mins[i];
|
|
l->exactmaxs[i] = maxs[i];
|
|
|
|
mins[i] = floor(mins[i]/16);
|
|
maxs[i] = ceil(maxs[i]/16);
|
|
|
|
l->texmins[i] = mins[i];
|
|
l->texsize[i] = maxs[i] - mins[i];
|
|
if (l->texsize[i] > 17)
|
|
Error ("Bad surface extents");
|
|
}
|
|
}
|
|
|
|
/*
|
|
=================
|
|
CalcPoints
|
|
|
|
For each texture aligned grid point, back project onto the plane
|
|
to get the world xyz value of the sample point
|
|
=================
|
|
*/
|
|
int c_bad;
|
|
static void LightCalcPoints (llightinfo_t *l)
|
|
{
|
|
int i;
|
|
int s, t, j;
|
|
int w, h, step;
|
|
vec_t starts, startt, us, ut;
|
|
vec_t *surf;
|
|
vec_t mids, midt;
|
|
vec3_t facemid, move;
|
|
|
|
//
|
|
// fill in surforg
|
|
// the points are biased towards the center of the surface
|
|
// to help avoid edge cases just inside walls
|
|
//
|
|
surf = l->surfpt[0];
|
|
mids = (l->exactmaxs[0] + l->exactmins[0])/2;
|
|
midt = (l->exactmaxs[1] + l->exactmins[1])/2;
|
|
|
|
for (j=0 ; j<3 ; j++)
|
|
facemid[j] = l->texorg[j] + l->textoworld[0][j]*mids + l->textoworld[1][j]*midt;
|
|
|
|
if (extrasamples)
|
|
{ // extra filtering
|
|
h = (l->texsize[1]+1)*2;
|
|
w = (l->texsize[0]+1)*2;
|
|
starts = (l->texmins[0]-0.5)*16;
|
|
startt = (l->texmins[1]-0.5)*16;
|
|
step = 8;
|
|
}
|
|
else
|
|
{
|
|
h = l->texsize[1]+1;
|
|
w = l->texsize[0]+1;
|
|
starts = l->texmins[0]*16;
|
|
startt = l->texmins[1]*16;
|
|
step = 16;
|
|
}
|
|
|
|
l->numsurfpt = w * h;
|
|
for (t=0 ; t<h ; t++)
|
|
{
|
|
for (s=0 ; s<w ; s++, surf+=3)
|
|
{
|
|
us = starts + s*step;
|
|
ut = startt + t*step;
|
|
|
|
// if a line can be traced from surf to facemid, the point is good
|
|
for (i=0 ; i<6 ; i++)
|
|
{
|
|
// calculate texture point
|
|
for (j=0 ; j<3 ; j++)
|
|
surf[j] = l->texorg[j] + l->textoworld[0][j]*us
|
|
+ l->textoworld[1][j]*ut;
|
|
|
|
if (CastRay (facemid, surf) != -1)
|
|
break; // got it
|
|
if (i & 1)
|
|
{
|
|
if (us > mids)
|
|
{
|
|
us -= 8;
|
|
if (us < mids)
|
|
us = mids;
|
|
}
|
|
else
|
|
{
|
|
us += 8;
|
|
if (us > mids)
|
|
us = mids;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (ut > midt)
|
|
{
|
|
ut -= 8;
|
|
if (ut < midt)
|
|
ut = midt;
|
|
}
|
|
else
|
|
{
|
|
ut += 8;
|
|
if (ut > midt)
|
|
ut = midt;
|
|
}
|
|
}
|
|
|
|
// move surf 8 pixels towards the center
|
|
VectorSubtract (facemid, surf, move);
|
|
VectorNormalize (move);
|
|
VectorMA (surf, 8, move, surf);
|
|
}
|
|
if (i == 2)
|
|
c_bad++;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/*
|
|
===============================================================================
|
|
|
|
FACE LIGHTING
|
|
|
|
===============================================================================
|
|
*/
|
|
|
|
int c_culldistplane, c_proper;
|
|
|
|
/*
|
|
================
|
|
SingleLightFace
|
|
================
|
|
*/
|
|
static void SingleLightFace (mentity_t *light, llightinfo_t *l)
|
|
{
|
|
vec_t dist;
|
|
vec3_t incoming;
|
|
vec_t angle;
|
|
vec_t add;
|
|
vec_t *surf;
|
|
qboolean hit;
|
|
int mapnum;
|
|
int size;
|
|
int c, i;
|
|
vec3_t rel;
|
|
vec3_t spotvec;
|
|
vec_t falloff;
|
|
vec3_t *lightsamp;
|
|
vec3_t *norms;
|
|
|
|
VectorSubtract (light->origin, bsp_origin, rel);
|
|
dist = scaledist * (DotProduct (rel, l->facenormal) - l->facedist);
|
|
|
|
// don't bother with lights behind the surface
|
|
if (dist <= 0)
|
|
return;
|
|
|
|
// don't bother with light too far away
|
|
if (dist > light->light)
|
|
{
|
|
c_culldistplane++;
|
|
return;
|
|
}
|
|
|
|
if (light->targetent)
|
|
{
|
|
VectorSubtract (light->targetent->origin, light->origin, spotvec);
|
|
VectorNormalize (spotvec);
|
|
if (!light->angle)
|
|
falloff = -cos(20*Q_PI/180);
|
|
else
|
|
falloff = -cos(light->angle/2*Q_PI/180);
|
|
}
|
|
else
|
|
falloff = 0; // shut up compiler warnings
|
|
|
|
mapnum = 0;
|
|
for (mapnum=0 ; mapnum<l->numlightstyles ; mapnum++)
|
|
if (l->lightstyles[mapnum] == light->style)
|
|
break;
|
|
|
|
lightsamp = l->lightmaps[mapnum];
|
|
norms = l->lightnorm[mapnum];
|
|
if (mapnum == l->numlightstyles)
|
|
{ // init a new light map
|
|
if (mapnum == MAXLIGHTMAPS)
|
|
{
|
|
printf ("WARNING: Too many light styles on a face\n");
|
|
return;
|
|
}
|
|
size = (l->texsize[1]+1)*(l->texsize[0]+1);
|
|
for (i=0 ; i<size ; i++)
|
|
{
|
|
lightsamp[i][0] = 0;
|
|
lightsamp[i][1] = 0;
|
|
lightsamp[i][2] = 0;
|
|
norms[i][0] = 0;
|
|
norms[i][1] = 0;
|
|
norms[i][2] = 0;
|
|
}
|
|
}
|
|
|
|
//
|
|
// check it for real
|
|
//
|
|
hit = false;
|
|
c_proper++;
|
|
|
|
surf = l->surfpt[0];
|
|
for (c=0 ; c<l->numsurfpt ; c++, surf+=3)
|
|
{
|
|
dist = CastRay(light->origin, surf)*scaledist;
|
|
if (dist < 0)
|
|
continue; // light doesn't reach
|
|
|
|
VectorSubtract (light->origin, surf, incoming);
|
|
VectorNormalize (incoming);
|
|
if (light->targetent)
|
|
{ // spotlight cutoff
|
|
if (DotProduct (spotvec, incoming) > falloff)
|
|
continue;
|
|
}
|
|
angle = DotProduct (incoming, l->facenormal);
|
|
|
|
angle = (1.0-scalecos) + scalecos*angle;
|
|
add = light->light - dist;
|
|
add *= angle;
|
|
if (add < 0)
|
|
continue;
|
|
|
|
lightsamp[c][0] += add*light->colour[0];
|
|
lightsamp[c][1] += add*light->colour[1];
|
|
lightsamp[c][2] += add*light->colour[2];
|
|
|
|
norms[c][0] -= add * incoming[0]; //Quake doesn't make sence some times.
|
|
norms[c][1] -= add * incoming[1];
|
|
norms[c][2] -= add * incoming[2];
|
|
|
|
if (add > 1) // ignore real tiny lights
|
|
hit = true;
|
|
}
|
|
|
|
if (mapnum == l->numlightstyles && hit)
|
|
{
|
|
l->lightstyles[mapnum] = light->style;
|
|
l->numlightstyles++; // the style has some real data now
|
|
}
|
|
}
|
|
|
|
/*
|
|
============
|
|
FixMinlight
|
|
============
|
|
*/
|
|
static void FixMinlight (llightinfo_t *l)
|
|
{
|
|
int i, j;
|
|
float minlight;
|
|
|
|
minlight = 0;
|
|
|
|
// if minlight is set, there must be a style 0 light map
|
|
if (!minlight)
|
|
return;
|
|
|
|
for (i=0 ; i< l->numlightstyles ; i++)
|
|
{
|
|
if (l->lightstyles[i] == 0)
|
|
break;
|
|
}
|
|
if (i == l->numlightstyles)
|
|
{
|
|
if (l->numlightstyles == MAXLIGHTMAPS)
|
|
return; // oh well..
|
|
for (j=0 ; j<l->numsurfpt ; j++)
|
|
{
|
|
l->lightmaps[i][j][0] = minlight;
|
|
l->lightmaps[i][j][1] = minlight;
|
|
l->lightmaps[i][j][2] = minlight;
|
|
}
|
|
l->lightstyles[i] = 0;
|
|
l->numlightstyles++;
|
|
}
|
|
else
|
|
{
|
|
for (j=0 ; j<l->numsurfpt ; j++)
|
|
{
|
|
if ( l->lightmaps[i][j][0] < minlight)
|
|
l->lightmaps[i][j][0] = minlight;
|
|
if ( l->lightmaps[i][j][1] < minlight)
|
|
l->lightmaps[i][j][1] = minlight;
|
|
if ( l->lightmaps[i][j][2] < minlight)
|
|
l->lightmaps[i][j][2] = minlight;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
============
|
|
LightFace
|
|
============
|
|
*/
|
|
void LightFace (int surfnum)
|
|
{
|
|
dface_t *f;
|
|
llightinfo_t l;
|
|
int s, t;
|
|
int i,j,c,ch;
|
|
vec_t total, mean;
|
|
int size;
|
|
int lightmapwidth, lightmapsize;
|
|
#ifdef UTILITY
|
|
byte *out;
|
|
#endif
|
|
byte *rgbout;
|
|
byte *dulout;
|
|
vec3_t *light, *norm;
|
|
vec3_t wnorm, temp, svector, tvector;
|
|
int w, h;
|
|
|
|
f = dfaces + surfnum;
|
|
|
|
//
|
|
// some surfaces don't need lightmaps
|
|
//
|
|
#ifdef UTILITY
|
|
for (j=0 ; j<MAXLIGHTMAPS ; j++)
|
|
f->styles[j] = 255;
|
|
#endif
|
|
if ( bsptexinfo(f->texinfo).flags & TEX_SPECIAL)
|
|
{ // non-lit texture
|
|
#ifdef UTILITY
|
|
f->lightofs = -1;
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
#ifndef UTILITY
|
|
if (!f->samples)
|
|
return;
|
|
#endif
|
|
|
|
memset (&l, 0, sizeof(l));
|
|
l.surfnum = surfnum;
|
|
l.face = f;
|
|
|
|
//
|
|
// rotate plane
|
|
//
|
|
#ifndef UTILITY
|
|
VectorCopy (f->plane->normal, l.facenormal);
|
|
l.facedist = f->plane->dist;
|
|
#else
|
|
VectorCopy (dplanes[f->planenum].normal, l.facenormal);
|
|
l.facedist = dplanes[f->planenum].dist;
|
|
#endif
|
|
if (f->side)
|
|
{
|
|
VectorNegate (l.facenormal, l.facenormal);
|
|
l.facedist = -l.facedist;
|
|
}
|
|
|
|
|
|
|
|
LightCalcFaceVectors (&l);
|
|
LightCalcFaceExtents (&l);
|
|
LightCalcPoints (&l);
|
|
|
|
lightmapwidth = l.texsize[0]+1;
|
|
|
|
size = lightmapwidth*(l.texsize[1]+1);
|
|
if (size > SINGLEMAP)
|
|
Error ("Bad lightmap size");
|
|
|
|
for (i=0 ; i<MAXLIGHTMAPS ; i++)
|
|
l.lightstyles[i] = 255;
|
|
|
|
//
|
|
// cast all lights
|
|
//
|
|
l.numlightstyles = 0;
|
|
for (i=0 ; i<num_entities ; i++)
|
|
{
|
|
if (entities[i].light)
|
|
SingleLightFace (&entities[i], &l);
|
|
}
|
|
|
|
FixMinlight (&l);
|
|
|
|
if (!l.numlightstyles)
|
|
{ // no light hitting it
|
|
#ifdef UTILITY
|
|
f->lightofs = -1;
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
#ifndef UTILITY
|
|
for (j=0 ; j<MAXLIGHTMAPS ; j++)
|
|
f->styles[j] = 255;
|
|
#endif
|
|
|
|
//
|
|
// save out the values
|
|
//
|
|
for (i=0 ; i <MAXLIGHTMAPS ; i++)
|
|
f->styles[i] = l.lightstyles[i];
|
|
|
|
lightmapsize = size*l.numlightstyles;
|
|
|
|
#ifdef UTILITY
|
|
if (runningrgblightdatabase)
|
|
{
|
|
out = GetFakeFileSpace(&f->lightofs, size);
|
|
rgbout = runningrgblightdatabase + f->lightofs*3;
|
|
dulout = runninglightnormbase + f->lightofs*3;
|
|
}
|
|
else
|
|
{
|
|
out = GetFileSpace (&f->lightofs, lightmapsize);
|
|
|
|
rgbout = GetRGBFileSpace (f->lightofs, lightmapsize);
|
|
dulout = GetNormFileSpace (f->lightofs, lightmapsize);
|
|
}
|
|
#else
|
|
rgbout = f->samples;
|
|
if (lightmodel->deluxdata)
|
|
{
|
|
dulout = f->samples - lightmodel->lightdata + lightmodel->deluxdata;
|
|
|
|
VectorCopy(bsptexinfo(f->texinfo).vecs[0], svector);
|
|
VectorNegate(bsptexinfo(f->texinfo).vecs[1], tvector);
|
|
VectorNormalize(svector);
|
|
VectorNormalize(tvector);
|
|
}
|
|
else
|
|
dulout = NULL;
|
|
#endif
|
|
|
|
|
|
|
|
// extra filtering
|
|
h = (l.texsize[1]+1)*2;
|
|
w = (l.texsize[0]+1)*2;
|
|
|
|
for (i=0 ; i< l.numlightstyles ; i++)
|
|
{
|
|
if (l.lightstyles[i] == 0xff)
|
|
Error ("Wrote empty lightmap");
|
|
light = l.lightmaps[i];
|
|
norm = l.lightnorm[i];
|
|
c = 0;
|
|
for (t=0 ; t<=l.texsize[1] ; t++)
|
|
{
|
|
for (s=0 ; s<=l.texsize[0] ; s++, c++)
|
|
{
|
|
mean = 0;
|
|
|
|
for (ch = 0; ch < 3; ch++)
|
|
{
|
|
if (extrasamples)
|
|
{ // filtered sample
|
|
total = light[t*2*w+s*2][ch] + light[t*2*w+s*2+1][ch]
|
|
+ light[(t*2+1)*w+s*2][ch] + light[(t*2+1)*w+s*2+1][ch];
|
|
total *= 0.25;
|
|
|
|
wnorm[ch] = norm[t*2*w+s*2][ch] + norm[t*2*w+s*2+1][ch]
|
|
+ norm[(t*2+1)*w+s*2][ch] + norm[(t*2+1)*w+s*2+1][ch];
|
|
}
|
|
else
|
|
{
|
|
total = light[c][ch];
|
|
wnorm[ch] = norm[c][ch];
|
|
}
|
|
total *= rangescale; // scale before clamping
|
|
#ifdef UTILITY
|
|
if (total > *out) //sorry - for qw
|
|
total = *out;
|
|
#else
|
|
if (total > *rgbout) //sorry - for qw
|
|
total = *rgbout;
|
|
#endif
|
|
if (total < 0)
|
|
Error ("light < 0");
|
|
|
|
*rgbout++ = total;
|
|
mean += total;
|
|
}
|
|
#ifdef UTILITY
|
|
*out++ = mean/3;
|
|
#endif
|
|
|
|
if (dulout)
|
|
{
|
|
temp[0] = DotProduct(wnorm, svector);
|
|
temp[1] = DotProduct(wnorm, tvector);
|
|
temp[2] = DotProduct(wnorm, l.facenormal);
|
|
VectorNormalize(temp);
|
|
*dulout++ = -(temp[0]+1)*128 + 128;
|
|
*dulout++ = (temp[1]+1)*128 + 128;
|
|
*dulout++ = (temp[2]+1)*128 + 128;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|