int R_MDRComputeFogNum( mdrHeader_t *header, trRefEntity_t *ent ) {
int i, j;
fog_t *fog;
mdrFrame_t *mdrFrame;
vec3_t localOrigin;
int frameSize;
if ( tr.refdef.rdflags & RDF_NOWORLDMODEL ) {
return 0;
}
frameSize = (size_t)( &((mdrFrame_t *)0)->bones[ header->numBones ] );
// FIXME: non-normalized axis issues
mdrFrame = ( mdrFrame_t * ) ( ( byte * ) header + header->ofsFrames + frameSize * ent->e.frame);
VectorAdd( ent->e.origin, mdrFrame->localOrigin, localOrigin );
for ( i = 1 ; i < tr.world->numfogs ; i++ ) {
fog = &tr.world->fogs[i];
for ( j = 0 ; j < 3 ; j++ ) {
if ( localOrigin[j] - mdrFrame->radius >= fog->bounds[1][j] ) {
break;
}
if ( localOrigin[j] + mdrFrame->radius <= fog->bounds[0][j] ) {
break;
}
}
if ( j == 3 ) {
return i;
}
}
return R_DefaultFogNum();
}
/*
=================
R_ComputeIQMFogNum
=================
*/
int R_ComputeIQMFogNum( iqmData_t *data, trRefEntity_t *ent ) {
int i, j;
fog_t *fog;
const vec_t *bounds;
const vec_t defaultBounds[6] = { -8, -8, -8, 8, 8, 8 };
vec3_t diag, center;
vec3_t localOrigin;
vec_t radius;
if ( tr.refdef.rdflags & RDF_NOWORLDMODEL ) {
return 0;
}
// FIXME: non-normalized axis issues
if (data->bounds) {
bounds = data->bounds + 6*ent->e.frame;
} else {
bounds = defaultBounds;
}
VectorSubtract( bounds+3, bounds, diag );
VectorMA( bounds, 0.5f, diag, center );
VectorAdd( ent->e.origin, center, localOrigin );
radius = 0.5f * VectorLength( diag );
for ( i = 1 ; i < tr.world->numfogs ; i++ ) {
fog = &tr.world->fogs[i];
for ( j = 0 ; j < 3 ; j++ ) {
if ( localOrigin[j] - radius >= fog->bounds[1][j] ) {
break;
}
if ( localOrigin[j] + radius <= fog->bounds[0][j] ) {
break;
}
}
if ( j == 3 ) {
return i;
}
}
return R_DefaultFogNum();
}
