mirror of
https://github.com/UberGames/GtkRadiant.git
synced 2024-12-11 21:10:56 +00:00
515 lines
10 KiB
C
515 lines
10 KiB
C
/*
|
|
===========================================================================
|
|
Copyright (C) 1997-2006 Id Software, Inc.
|
|
|
|
This file is part of Quake 2 Tools source code.
|
|
|
|
Quake 2 Tools source code is free software; you can redistribute it
|
|
and/or modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2 of the License,
|
|
or (at your option) any later version.
|
|
|
|
Quake 2 Tools source code is distributed in the hope that it will be
|
|
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Quake 2 Tools source code; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
===========================================================================
|
|
*/
|
|
|
|
#include "qrad.h"
|
|
|
|
vec3_t texture_reflectivity[MAX_MAP_TEXINFO];
|
|
|
|
/*
|
|
===================================================================
|
|
|
|
TEXTURE LIGHT VALUES
|
|
|
|
===================================================================
|
|
*/
|
|
|
|
/*
|
|
======================
|
|
CalcTextureReflectivity
|
|
======================
|
|
*/
|
|
void CalcTextureReflectivity (void)
|
|
{
|
|
int i;
|
|
int j, k, texels;
|
|
int color[3];
|
|
int texel;
|
|
byte *palette;
|
|
char path[1024];
|
|
float r, scale;
|
|
miptex_t *mt;
|
|
|
|
sprintf (path, "%spics/colormap.pcx", gamedir);
|
|
|
|
// get the game palette
|
|
Load256Image (path, NULL, &palette, NULL, NULL);
|
|
|
|
// allways set index 0 even if no textures
|
|
texture_reflectivity[0][0] = 0.5;
|
|
texture_reflectivity[0][1] = 0.5;
|
|
texture_reflectivity[0][2] = 0.5;
|
|
|
|
for (i=0 ; i<numtexinfo ; i++)
|
|
{
|
|
// see if an earlier texinfo allready got the value
|
|
for (j=0 ; j<i ; j++)
|
|
{
|
|
if (!strcmp (texinfo[i].texture, texinfo[j].texture))
|
|
{
|
|
VectorCopy (texture_reflectivity[j], texture_reflectivity[i]);
|
|
break;
|
|
}
|
|
}
|
|
if (j != i)
|
|
continue;
|
|
|
|
// load the wal file
|
|
sprintf (path, "%stextures/%s.wal", gamedir, texinfo[i].texture);
|
|
if (TryLoadFile (path, (void **)&mt) == -1)
|
|
{
|
|
printf ("Couldn't load %s\n", path);
|
|
texture_reflectivity[i][0] = 0.5;
|
|
texture_reflectivity[i][1] = 0.5;
|
|
texture_reflectivity[i][2] = 0.5;
|
|
continue;
|
|
}
|
|
texels = LittleLong(mt->width)*LittleLong(mt->height);
|
|
color[0] = color[1] = color[2] = 0;
|
|
|
|
for (j=0 ; j<texels ; j++)
|
|
{
|
|
texel = ((byte *)mt)[LittleLong(mt->offsets[0]) + j];
|
|
for (k=0 ; k<3 ; k++)
|
|
color[k] += palette[texel*3+k];
|
|
}
|
|
|
|
for (j=0 ; j<3 ; j++)
|
|
{
|
|
r = color[j]/texels/255.0;
|
|
texture_reflectivity[i][j] = r;
|
|
}
|
|
// scale the reflectivity up, because the textures are
|
|
// so dim
|
|
scale = ColorNormalize (texture_reflectivity[i],
|
|
texture_reflectivity[i]);
|
|
if (scale < 0.5)
|
|
{
|
|
scale *= 2;
|
|
VectorScale (texture_reflectivity[i], scale, texture_reflectivity[i]);
|
|
}
|
|
#if 0
|
|
texture_reflectivity[i][0] = 0.5;
|
|
texture_reflectivity[i][1] = 0.5;
|
|
texture_reflectivity[i][2] = 0.5;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/*
|
|
=======================================================================
|
|
|
|
MAKE FACES
|
|
|
|
=======================================================================
|
|
*/
|
|
|
|
/*
|
|
=============
|
|
WindingFromFace
|
|
=============
|
|
*/
|
|
winding_t *WindingFromFace (dface_t *f)
|
|
{
|
|
int i;
|
|
int se;
|
|
dvertex_t *dv;
|
|
int v;
|
|
winding_t *w;
|
|
|
|
w = AllocWinding (f->numedges);
|
|
w->numpoints = f->numedges;
|
|
|
|
for (i=0 ; i<f->numedges ; i++)
|
|
{
|
|
se = dsurfedges[f->firstedge + i];
|
|
if (se < 0)
|
|
v = dedges[-se].v[1];
|
|
else
|
|
v = dedges[se].v[0];
|
|
|
|
dv = &dvertexes[v];
|
|
VectorCopy (dv->point, w->p[i]);
|
|
}
|
|
|
|
RemoveColinearPoints (w);
|
|
|
|
return w;
|
|
}
|
|
|
|
/*
|
|
=============
|
|
BaseLightForFace
|
|
=============
|
|
*/
|
|
void BaseLightForFace (dface_t *f, vec3_t color)
|
|
{
|
|
texinfo_t *tx;
|
|
|
|
//
|
|
// check for light emited by texture
|
|
//
|
|
tx = &texinfo[f->texinfo];
|
|
if (!(tx->flags & SURF_LIGHT) || tx->value == 0)
|
|
{
|
|
VectorClear (color);
|
|
return;
|
|
}
|
|
|
|
VectorScale (texture_reflectivity[f->texinfo], tx->value, color);
|
|
}
|
|
|
|
qboolean IsSky (dface_t *f)
|
|
{
|
|
texinfo_t *tx;
|
|
|
|
tx = &texinfo[f->texinfo];
|
|
if (tx->flags & SURF_SKY)
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
=============
|
|
MakePatchForFace
|
|
=============
|
|
*/
|
|
float totalarea;
|
|
void MakePatchForFace (int fn, winding_t *w)
|
|
{
|
|
dface_t *f;
|
|
float area;
|
|
patch_t *patch;
|
|
dplane_t *pl;
|
|
int i;
|
|
vec3_t color;
|
|
dleaf_t *leaf;
|
|
|
|
f = &dfaces[fn];
|
|
|
|
area = WindingArea (w);
|
|
totalarea += area;
|
|
|
|
patch = &patches[num_patches];
|
|
if (num_patches == MAX_PATCHES)
|
|
Error ("num_patches == MAX_PATCHES");
|
|
patch->next = face_patches[fn];
|
|
face_patches[fn] = patch;
|
|
|
|
patch->winding = w;
|
|
|
|
if (f->side)
|
|
patch->plane = &backplanes[f->planenum];
|
|
else
|
|
patch->plane = &dplanes[f->planenum];
|
|
if (face_offset[fn][0] || face_offset[fn][1] || face_offset[fn][2] )
|
|
{ // origin offset faces must create new planes
|
|
if (numplanes + fakeplanes >= MAX_MAP_PLANES)
|
|
Error ("numplanes + fakeplanes >= MAX_MAP_PLANES");
|
|
pl = &dplanes[numplanes + fakeplanes];
|
|
fakeplanes++;
|
|
|
|
*pl = *(patch->plane);
|
|
pl->dist += DotProduct (face_offset[fn], pl->normal);
|
|
patch->plane = pl;
|
|
}
|
|
|
|
WindingCenter (w, patch->origin);
|
|
VectorAdd (patch->origin, patch->plane->normal, patch->origin);
|
|
leaf = PointInLeaf(patch->origin);
|
|
patch->cluster = leaf->cluster;
|
|
if (patch->cluster == -1)
|
|
qprintf ("patch->cluster == -1\n");
|
|
|
|
patch->area = area;
|
|
if (patch->area <= 1)
|
|
patch->area = 1;
|
|
patch->sky = IsSky (f);
|
|
|
|
VectorCopy (texture_reflectivity[f->texinfo], patch->reflectivity);
|
|
|
|
// non-bmodel patches can emit light
|
|
if (fn < dmodels[0].numfaces)
|
|
{
|
|
BaseLightForFace (f, patch->baselight);
|
|
|
|
ColorNormalize (patch->reflectivity, color);
|
|
|
|
for (i=0 ; i<3 ; i++)
|
|
patch->baselight[i] *= color[i];
|
|
|
|
VectorCopy (patch->baselight, patch->totallight);
|
|
}
|
|
num_patches++;
|
|
}
|
|
|
|
|
|
entity_t *EntityForModel (int modnum)
|
|
{
|
|
int i;
|
|
char *s;
|
|
char name[16];
|
|
|
|
sprintf (name, "*%i", modnum);
|
|
// search the entities for one using modnum
|
|
for (i=0 ; i<num_entities ; i++)
|
|
{
|
|
s = ValueForKey (&entities[i], "model");
|
|
if (!strcmp (s, name))
|
|
return &entities[i];
|
|
}
|
|
|
|
return &entities[0];
|
|
}
|
|
|
|
/*
|
|
=============
|
|
MakePatches
|
|
=============
|
|
*/
|
|
void MakePatches (void)
|
|
{
|
|
int i, j, k;
|
|
dface_t *f;
|
|
int fn;
|
|
winding_t *w;
|
|
dmodel_t *mod;
|
|
vec3_t origin;
|
|
entity_t *ent;
|
|
|
|
qprintf ("%i faces\n", numfaces);
|
|
|
|
for (i=0 ; i<nummodels ; i++)
|
|
{
|
|
mod = &dmodels[i];
|
|
ent = EntityForModel (i);
|
|
// bmodels with origin brushes need to be offset into their
|
|
// in-use position
|
|
GetVectorForKey (ent, "origin", origin);
|
|
//VectorCopy (vec3_origin, origin);
|
|
|
|
for (j=0 ; j<mod->numfaces ; j++)
|
|
{
|
|
fn = mod->firstface + j;
|
|
face_entity[fn] = ent;
|
|
VectorCopy (origin, face_offset[fn]);
|
|
f = &dfaces[fn];
|
|
w = WindingFromFace (f);
|
|
for (k=0 ; k<w->numpoints ; k++)
|
|
{
|
|
VectorAdd (w->p[k], origin, w->p[k]);
|
|
}
|
|
MakePatchForFace (fn, w);
|
|
}
|
|
}
|
|
|
|
qprintf ("%i sqaure feet\n", (int)(totalarea/64));
|
|
}
|
|
|
|
/*
|
|
=======================================================================
|
|
|
|
SUBDIVIDE
|
|
|
|
=======================================================================
|
|
*/
|
|
|
|
void FinishSplit (patch_t *patch, patch_t *newp)
|
|
{
|
|
dleaf_t *leaf;
|
|
|
|
VectorCopy (patch->baselight, newp->baselight);
|
|
VectorCopy (patch->totallight, newp->totallight);
|
|
VectorCopy (patch->reflectivity, newp->reflectivity);
|
|
newp->plane = patch->plane;
|
|
newp->sky = patch->sky;
|
|
|
|
patch->area = WindingArea (patch->winding);
|
|
newp->area = WindingArea (newp->winding);
|
|
|
|
if (patch->area <= 1)
|
|
patch->area = 1;
|
|
if (newp->area <= 1)
|
|
newp->area = 1;
|
|
|
|
WindingCenter (patch->winding, patch->origin);
|
|
VectorAdd (patch->origin, patch->plane->normal, patch->origin);
|
|
leaf = PointInLeaf(patch->origin);
|
|
patch->cluster = leaf->cluster;
|
|
if (patch->cluster == -1)
|
|
qprintf ("patch->cluster == -1\n");
|
|
|
|
WindingCenter (newp->winding, newp->origin);
|
|
VectorAdd (newp->origin, newp->plane->normal, newp->origin);
|
|
leaf = PointInLeaf(newp->origin);
|
|
newp->cluster = leaf->cluster;
|
|
if (newp->cluster == -1)
|
|
qprintf ("patch->cluster == -1\n");
|
|
}
|
|
|
|
/*
|
|
=============
|
|
SubdividePatch
|
|
|
|
Chops the patch only if its local bounds exceed the max size
|
|
=============
|
|
*/
|
|
void SubdividePatch (patch_t *patch)
|
|
{
|
|
winding_t *w, *o1, *o2;
|
|
vec3_t mins, maxs, total;
|
|
vec3_t split;
|
|
vec_t dist;
|
|
int i, j;
|
|
vec_t v;
|
|
patch_t *newp;
|
|
|
|
w = patch->winding;
|
|
mins[0] = mins[1] = mins[2] = 99999;
|
|
maxs[0] = maxs[1] = maxs[2] = -99999;
|
|
for (i=0 ; i<w->numpoints ; i++)
|
|
{
|
|
for (j=0 ; j<3 ; j++)
|
|
{
|
|
v = w->p[i][j];
|
|
if (v < mins[j])
|
|
mins[j] = v;
|
|
if (v > maxs[j])
|
|
maxs[j] = v;
|
|
}
|
|
}
|
|
VectorSubtract (maxs, mins, total);
|
|
for (i=0 ; i<3 ; i++)
|
|
if (total[i] > (subdiv+1) )
|
|
break;
|
|
if (i == 3)
|
|
{
|
|
// no splitting needed
|
|
return;
|
|
}
|
|
|
|
//
|
|
// split the winding
|
|
//
|
|
VectorCopy (vec3_origin, split);
|
|
split[i] = 1;
|
|
dist = (mins[i] + maxs[i])*0.5;
|
|
ClipWindingEpsilon (w, split, dist, ON_EPSILON, &o1, &o2);
|
|
|
|
//
|
|
// create a new patch
|
|
//
|
|
if (num_patches == MAX_PATCHES)
|
|
Error ("MAX_PATCHES");
|
|
newp = &patches[num_patches];
|
|
num_patches++;
|
|
|
|
newp->next = patch->next;
|
|
patch->next = newp;
|
|
|
|
patch->winding = o1;
|
|
newp->winding = o2;
|
|
|
|
FinishSplit (patch, newp);
|
|
|
|
SubdividePatch (patch);
|
|
SubdividePatch (newp);
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
DicePatch
|
|
|
|
Chops the patch by a global grid
|
|
=============
|
|
*/
|
|
void DicePatch (patch_t *patch)
|
|
{
|
|
winding_t *w, *o1, *o2;
|
|
vec3_t mins, maxs;
|
|
vec3_t split;
|
|
vec_t dist;
|
|
int i;
|
|
patch_t *newp;
|
|
|
|
w = patch->winding;
|
|
WindingBounds (w, mins, maxs);
|
|
for (i=0 ; i<3 ; i++)
|
|
if (floor((mins[i]+1)/subdiv) < floor((maxs[i]-1)/subdiv))
|
|
break;
|
|
if (i == 3)
|
|
{
|
|
// no splitting needed
|
|
return;
|
|
}
|
|
|
|
//
|
|
// split the winding
|
|
//
|
|
VectorCopy (vec3_origin, split);
|
|
split[i] = 1;
|
|
dist = subdiv*(1+floor((mins[i]+1)/subdiv));
|
|
ClipWindingEpsilon (w, split, dist, ON_EPSILON, &o1, &o2);
|
|
|
|
//
|
|
// create a new patch
|
|
//
|
|
if (num_patches == MAX_PATCHES)
|
|
Error ("MAX_PATCHES");
|
|
newp = &patches[num_patches];
|
|
num_patches++;
|
|
|
|
newp->next = patch->next;
|
|
patch->next = newp;
|
|
|
|
patch->winding = o1;
|
|
newp->winding = o2;
|
|
|
|
FinishSplit (patch, newp);
|
|
|
|
DicePatch (patch);
|
|
DicePatch (newp);
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
SubdividePatches
|
|
=============
|
|
*/
|
|
void SubdividePatches (void)
|
|
{
|
|
int i, num;
|
|
|
|
if (subdiv < 1)
|
|
return;
|
|
|
|
num = num_patches; // because the list will grow
|
|
for (i=0 ; i<num ; i++)
|
|
{
|
|
// SubdividePatch (&patches[i]);
|
|
DicePatch (&patches[i]);
|
|
}
|
|
qprintf ("%i patches after subdivision\n", num_patches);
|
|
}
|
|
|
|
//=====================================================================
|