/*
=================
R_AComputeFogNum
=================
*/
static int R_AComputeFogNum( md4Header_t *header, trRefEntity_t *ent ) {
int i;
fog_t *fog;
md4Frame_t *frame;
vec3_t localOrigin;
int frameSize;
if ( tr.refdef.rdflags & RDF_NOWORLDMODEL ) {
return 0;
}
if (header->ofsFrames<0) // Compressed
{
frameSize = (int)( &((md4CompFrame_t *)0)->bones[ header->numBones ] );
frame = (md4Frame_t *)((byte *)header - header->ofsFrames + ent->e.frame * frameSize );
// HACK! These frames actually are md4CompFrames, but the first fields are the same,
// so this will work for this routine.
}
else
{
frameSize = (int)( &((md4Frame_t *)0)->bones[ header->numBones ] );
frame = (md4Frame_t *)((byte *)header + header->ofsFrames + ent->e.frame * frameSize );
}
VectorAdd( ent->e.origin, frame->localOrigin, localOrigin );
int partialFog = 0;
for ( i = 1 ; i < tr.world->numfogs ; i++ ) {
fog = &tr.world->fogs[i];
if ( localOrigin[0] - frame->radius >= fog->bounds[0][0]
&& localOrigin[0] + frame->radius <= fog->bounds[1][0]
&& localOrigin[1] - frame->radius >= fog->bounds[0][1]
&& localOrigin[1] + frame->radius <= fog->bounds[1][1]
&& localOrigin[2] - frame->radius >= fog->bounds[0][2]
&& localOrigin[2] + frame->radius <= fog->bounds[1][2] )
{//totally inside it
return i;
break;
}
if ( ( localOrigin[0] - frame->radius >= fog->bounds[0][0] && localOrigin[1] - frame->radius >= fog->bounds[0][1] && localOrigin[2] - frame->radius >= fog->bounds[0][2] &&
localOrigin[0] - frame->radius <= fog->bounds[1][0] && localOrigin[1] - frame->radius <= fog->bounds[1][1] && localOrigin[2] - frame->radius <= fog->bounds[1][2] ) ||
( localOrigin[0] + frame->radius >= fog->bounds[0][0] && localOrigin[1] + frame->radius >= fog->bounds[0][1] && localOrigin[2] + frame->radius >= fog->bounds[0][2] &&
localOrigin[0] + frame->radius <= fog->bounds[1][0] && localOrigin[1] + frame->radius <= fog->bounds[1][1] && localOrigin[2] + frame->radius <= fog->bounds[1][2] ) )
{//partially inside it
if ( tr.refdef.fogIndex == i || R_FogParmsMatch( tr.refdef.fogIndex, i ) )
{//take new one only if it's the same one that the viewpoint is in
return i;
break;
}
else if ( !partialFog )
{//first partialFog
partialFog = i;
}
}
}
//if all else fails, return the first partialFog
return partialFog;
}
/*
=================
R_ComputeFogNum
=================
*/
static int R_ComputeFogNum( md3Header_t *header, trRefEntity_t *ent ) {
int i;
fog_t *fog;
md3Frame_t *md3Frame;
vec3_t localOrigin;
if ( tr.refdef.rdflags & RDF_NOWORLDMODEL ) {
return 0;
}
if ( tr.refdef.doLAGoggles )
{
return tr.world->numfogs;
}
// FIXME: non-normalized axis issues
md3Frame = ( md3Frame_t * ) ( ( byte * ) header + header->ofsFrames ) + ent->e.frame;
VectorAdd( ent->e.origin, md3Frame->localOrigin, localOrigin );
int partialFog = 0;
for ( i = 1 ; i < tr.world->numfogs ; i++ ) {
fog = &tr.world->fogs[i];
if ( localOrigin[0] - md3Frame->radius >= fog->bounds[0][0]
&& localOrigin[0] + md3Frame->radius <= fog->bounds[1][0]
&& localOrigin[1] - md3Frame->radius >= fog->bounds[0][1]
&& localOrigin[1] + md3Frame->radius <= fog->bounds[1][1]
&& localOrigin[2] - md3Frame->radius >= fog->bounds[0][2]
&& localOrigin[2] + md3Frame->radius <= fog->bounds[1][2] )
{//totally inside it
return i;
break;
}
if ( ( localOrigin[0] - md3Frame->radius >= fog->bounds[0][0] && localOrigin[1] - md3Frame->radius >= fog->bounds[0][1] && localOrigin[2] - md3Frame->radius >= fog->bounds[0][2] &&
localOrigin[0] - md3Frame->radius <= fog->bounds[1][0] && localOrigin[1] - md3Frame->radius <= fog->bounds[1][1] && localOrigin[2] - md3Frame->radius <= fog->bounds[1][2]) ||
( localOrigin[0] + md3Frame->radius >= fog->bounds[0][0] && localOrigin[1] + md3Frame->radius >= fog->bounds[0][1] && localOrigin[2] + md3Frame->radius >= fog->bounds[0][2] &&
localOrigin[0] + md3Frame->radius <= fog->bounds[1][0] && localOrigin[1] + md3Frame->radius <= fog->bounds[1][1] && localOrigin[2] + md3Frame->radius <= fog->bounds[1][2] ) )
{//partially inside it
if ( tr.refdef.fogIndex == i || R_FogParmsMatch( tr.refdef.fogIndex, i ) )
{//take new one only if it's the same one that the viewpoint is in
return i;
break;
}
else if ( !partialFog )
{//first partialFog
partialFog = i;
}
}
}
//if all else fails, return the first partialFog
return partialFog;
}
/*
=================
R_SpriteFogNum
See if a sprite is inside a fog volume
=================
*/
int R_SpriteFogNum( trRefEntity_t *ent ) {
int i;
fog_t *fog;
if ( tr.refdef.rdflags & RDF_NOWORLDMODEL ) {
return 0;
}
if (tr.refdef.doLAGoggles)
{
return tr.world->numfogs;
}
int partialFog = 0;
for ( i = 1 ; i < tr.world->numfogs ; i++ ) {
fog = &tr.world->fogs[i];
if ( ent->e.origin[0] - ent->e.radius >= fog->bounds[0][0]
&& ent->e.origin[0] + ent->e.radius <= fog->bounds[1][0]
&& ent->e.origin[1] - ent->e.radius >= fog->bounds[0][1]
&& ent->e.origin[1] + ent->e.radius <= fog->bounds[1][1]
&& ent->e.origin[2] - ent->e.radius >= fog->bounds[0][2]
&& ent->e.origin[2] + ent->e.radius <= fog->bounds[1][2] )
{//totally inside it
return i;
break;
}
if ( ( ent->e.origin[0] - ent->e.radius >= fog->bounds[0][0] && ent->e.origin[1] - ent->e.radius >= fog->bounds[0][1] && ent->e.origin[2] - ent->e.radius >= fog->bounds[0][2] &&
ent->e.origin[0] - ent->e.radius <= fog->bounds[1][0] && ent->e.origin[1] - ent->e.radius <= fog->bounds[1][1] && ent->e.origin[2] - ent->e.radius <= fog->bounds[1][2] ) ||
( ent->e.origin[0] + ent->e.radius >= fog->bounds[0][0] && ent->e.origin[1] + ent->e.radius >= fog->bounds[0][1] && ent->e.origin[2] + ent->e.radius >= fog->bounds[0][2] &&
ent->e.origin[0] + ent->e.radius <= fog->bounds[1][0] && ent->e.origin[1] + ent->e.radius <= fog->bounds[1][1] && ent->e.origin[2] + ent->e.radius <= fog->bounds[1][2] ) )
{//partially inside it
if ( tr.refdef.fogIndex == i || R_FogParmsMatch( tr.refdef.fogIndex, i ) )
{//take new one only if it's the same one that the viewpoint is in
return i;
break;
}
else if ( !partialFog )
{//first partialFog
partialFog = i;
}
}
}
return partialFog;
}