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Fix alias bounding box sizes, so that large critters don't disappear when at edge of view frustrum...

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(Taken and debugged from tutorial on quakesrc.org)
This commit is contained in:
Ragnvald Maartmann-Moe IV 2002-06-14 09:33:37 +00:00
parent 9482c151c2
commit df55030fa8
4 changed files with 24 additions and 13 deletions
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2
include/QF/model.h
View file

@ -346,6 +346,8 @@ extern aliashdr_t *pheader;
extern stvert_t *stverts;
extern mtriangle_t *triangles;
extern trivertx_t *poseverts[MAXALIASFRAMES];
extern int aliasbboxmins[3];
extern int aliasbboxmaxs[3];
//===================================================================

12
libs/models/alias/gl_model_alias.c
View file

@ -55,12 +55,6 @@ static const char rcsid[] =
byte player_8bit_texels[320 * 200];
/*
ALIAS MODELS
*/
// a pose is a single set of vertexes. a frame may be
// an animating sequence of poses
@ -202,6 +196,9 @@ Mod_LoadAliasFrame (void *pin, int *posenum, maliasframedesc_t *frame, int extra
// byte values, don't worry about endianness
frame->bboxmin.v[i] = pdaliasframe->bboxmin.v[i];
frame->bboxmax.v[i] = pdaliasframe->bboxmax.v[i];
aliasbboxmins[i] = min (frame->bboxmin.v[i], aliasbboxmins[i]);
aliasbboxmaxs[i] = max (frame->bboxmax.v[i], aliasbboxmaxs[i]);
}
pinframe = (trivertx_t *) (pdaliasframe + 1);
@ -236,6 +233,9 @@ Mod_LoadAliasGroup (void *pin, int *posenum, maliasframedesc_t *frame, int extra
// these are byte values, so we don't have to worry about endianness
frame->bboxmin.v[i] = pingroup->bboxmin.v[i];
frame->bboxmax.v[i] = pingroup->bboxmax.v[i];
aliasbboxmins[i] = min (frame->bboxmin.v[i], aliasbboxmins[i]);
aliasbboxmaxs[i] = max (frame->bboxmax.v[i], aliasbboxmaxs[i]);
}
pin_intervals = (daliasinterval_t *) (pingroup + 1);

17
libs/models/alias/model_alias.c
View file

@ -52,10 +52,6 @@ static const char rcsid[] =
#include "compat.h"
/*
ALIAS MODELS
*/
aliashdr_t *pheader;
stvert_t *stverts;
@ -67,6 +63,8 @@ int triangles_size = 0;
// sequence of poses
trivertx_t *poseverts[MAXALIASFRAMES];
int posenum = 0;
int aliasbboxmins[3], aliasbboxmaxs[3];
void *
Mod_LoadAllSkins (int numskins, daliasskintype_t *pskintype, int *pskinindex)
@ -264,6 +262,8 @@ Mod_LoadAliasModel (model_t *mod, void *buffer, cache_allocator_t allocator)
// load the frames
posenum = 0;
pframetype = (daliasframetype_t *) &pintriangles[pheader->mdl.numtris];
aliasbboxmins[0] = aliasbboxmins[1] = aliasbboxmins[2] = 99999;
aliasbboxmaxs[0] = aliasbboxmaxs[1] = aliasbboxmaxs[2] = -99999;
for (i = 0; i < numframes; i++) {
aliasframetype_t frametype;
@ -286,9 +286,12 @@ Mod_LoadAliasModel (model_t *mod, void *buffer, cache_allocator_t allocator)
mod->type = mod_alias;
// FIXME: do this right
mod->mins[0] = mod->mins[1] = mod->mins[2] = -16;
mod->maxs[0] = mod->maxs[1] = mod->maxs[2] = 16;
for (i = 0; i < 3; i++) {
mod->mins[i] = aliasbboxmins[i] * pheader->mdl.scale[i] +
pheader->mdl.scale_origin[i];
mod->maxs[i] = aliasbboxmaxs[i] * pheader->mdl.scale[i] +
pheader->mdl.scale_origin[i];
}
// build the draw lists
Mod_MakeAliasModelDisplayLists (mod, pheader, buffer, com_filesize, extra);

6
libs/models/alias/sw_model_alias.c
View file

@ -118,6 +118,9 @@ Mod_LoadAliasFrame (void *pin, int *posenum, maliasframedesc_t *frame, int extra
// byte values, don't worry about endianness
frame->bboxmin.v[i] = pdaliasframe->bboxmin.v[i];
frame->bboxmax.v[i] = pdaliasframe->bboxmax.v[i];
aliasbboxmins[i] = min (frame->bboxmin.v[i], aliasbboxmins[i]);
aliasbboxmaxs[i] = max (frame->bboxmax.v[i], aliasbboxmaxs[i]);
}
pinframe = (trivertx_t *) (pdaliasframe + 1);
@ -183,6 +186,9 @@ Mod_LoadAliasGroup (void *pin, int *posenum, maliasframedesc_t *frame, int extra
// these are byte values, so we don't have to worry about endianness
frame->bboxmin.v[i] = pingroup->bboxmin.v[i];
frame->bboxmax.v[i] = pingroup->bboxmax.v[i];
aliasbboxmins[i] = min (frame->bboxmin.v[i], aliasbboxmins[i]);
aliasbboxmaxs[i] = max (frame->bboxmax.v[i], aliasbboxmaxs[i]);
}
frame->frame = (byte *) paliasgroup - (byte *) pheader;