/*
* R_MarkLeafSurfaces
*/
static void R_MarkLeafSurfaces( msurface_t **mark, unsigned int clipFlags,
unsigned int dlightBits, unsigned int shadowBits )
{
msurface_t *surf;
unsigned int newDlightBits;
unsigned int newShadowBits;
drawSurfaceBSP_t *drawSurf;
vec3_t centre;
float distance;
do
{
surf = *mark++;
drawSurf = surf->drawSurf;
if( R_CullSurface( rsc.worldent, surf, clipFlags ) ) {
continue;
}
// avoid double-checking dlights that have already been added to drawSurf
newDlightBits = dlightBits;
if( drawSurf->dlightFrame == rsc.frameCount ) {
newDlightBits &= ~drawSurf->dlightBits;
}
if( newDlightBits ) {
newDlightBits = R_SurfaceDlightBits( surf, newDlightBits );
}
newShadowBits = R_SurfaceShadowBits( surf, shadowBits );
if( surf->visFrame != rf.frameCount || newDlightBits || newShadowBits ) {
VectorAdd( surf->mins, surf->maxs, centre );
VectorScale( centre, 0.5, centre );
distance = Distance( rn.refdef.vieworg, centre );
R_AddSurfaceToDrawList( rsc.worldent, surf, surf->fog,
newDlightBits, newShadowBits, distance );
}
surf->visFrame = rf.frameCount;
} while( *mark );
}
/*
* R_AddSurfaceToDrawList
*/
static void R_AddSurfaceToDrawList( const entity_t *e, const msurface_t *surf, const mfog_t *fog,
unsigned int clipFlags, unsigned int dlightBits, unsigned shadowBits, float dist )
{
int order = 0;
shader_t *shader;
drawSurfaceBSP_t *drawSurf;
if( R_CullSurface( e, surf, clipFlags ) ) {
return;
}
if( r_drawworld->integer == 2 ) {
shader = rsh.envShader;
} else {
shader = surf->shader;
if( shader->flags & SHADER_SKY ) {
if( !R_FASTSKY() ) {
R_AddSkyToDrawList( surf );
rn.numVisSurfaces++;
}
return;
}
}
drawSurf = surf->drawSurf;
if( drawSurf->visFrame != rf.frameCount ) {
portalSurface_t *portalSurface = NULL;
if( shader->flags & SHADER_PORTAL ) {
// draw portals in front-to-back order
dist = 1024 - dist / 100.0f;
if( dist < 1 ) dist = 1;
portalSurface = R_AddPortalSurface( e, surf->mesh, surf->mins, surf->maxs, shader );
}
drawSurf->visFrame = rf.frameCount;
if( !R_AddDSurfToDrawList( e, fog, shader, dist, order, portalSurface, drawSurf ) ) {
return;
}
}
// keep track of the actual vbo chunk we need to render
R_AddVBOSlice( drawSurf - rsh.worldBrushModel->drawSurfaces,
surf->mesh->numVerts, surf->mesh->numElems,
surf->firstDrawSurfVert, surf->firstDrawSurfElem );
// dynamic lights that affect the surface
if( dlightBits && R_SurfPotentiallyLit( surf ) ) {
// ignore dlights that have already been marked as affectors
if( drawSurf->dlightFrame == rsc.frameCount ) {
drawSurf->dlightBits |= dlightBits;
} else {
drawSurf->dlightBits = dlightBits;
drawSurf->dlightFrame = rsc.frameCount;
}
}
// shadows that are projected onto the surface
if( shadowBits && R_SurfPotentiallyShadowed( surf ) ) {
// ignore shadows that have already been marked as affectors
if( drawSurf->shadowFrame == rsc.frameCount ) {
drawSurf->shadowBits |= shadowBits;
} else {
drawSurf->shadowBits = shadowBits;
drawSurf->shadowFrame = rsc.frameCount;
}
}
rf.stats.c_brush_polys++;
rn.numVisSurfaces++;
}
/*
* R_AddSurfaceToDrawList
*/
static void R_AddSurfaceToDrawList( const entity_t *e, const msurface_t *surf, const mfog_t *fog,
unsigned int clipFlags, unsigned int dlightBits, unsigned shadowBits, float dist )
{
shader_t *shader;
drawSurfaceBSP_t *drawSurf = surf->drawSurf;
portalSurface_t *portalSurface = NULL;
if( R_CullSurface( e, surf, clipFlags ) ) {
return;
}
if( r_drawworld->integer == 2 ) {
shader = rsh.envShader;
} else {
shader = surf->shader;
if( shader->flags & SHADER_SKY ) {
bool addSurf = true, addSlice = false;
if( R_FASTSKY() ) {
return;
}
if( R_ClipSkySurface( surf ) ) {
if( rn.refdef.rdflags & RDF_SKYPORTALINVIEW ) {
// for skyportals, generate portal surface and
// also add BSP surface to skybox if it's fogged to render
// the fog hull later
portalSurface = R_AddSkyportalSurface( e, shader, drawSurf );
addSurf = portalSurface != NULL && surf->fog != NULL;
addSlice = portalSurface != NULL;
}
if( addSurf ) {
addSlice = R_AddSkySurfToDrawList( surf, portalSurface );
}
if( addSlice ) {
R_AddSurfaceVBOSlice( surf, 0 );
}
}
rn.numVisSurfaces++;
return;
}
}
if( drawSurf->visFrame != rf.frameCount ) {
if( shader->flags & SHADER_PORTAL ) {
// draw portals in front-to-back order
dist = 1024 - dist / 100.0f;
if( dist < 1 ) dist = 1;
portalSurface = R_AddPortalSurface( e, surf->mesh, surf->mins, surf->maxs, shader, drawSurf );
}
else {
// just ignore the distance since we're drawing batched geometry anyway
dist = 0;
}
drawSurf->visFrame = rf.frameCount;
if( !R_AddSurfToDrawList( rn.meshlist, e, fog, shader, dist, 0, portalSurface, drawSurf ) ) {
return;
}
if( portalSurface && !( shader->flags & (SHADER_PORTAL_CAPTURE|SHADER_PORTAL_CAPTURE2) ) ) {
R_AddSurfToDrawList( rn.portalmasklist, e, NULL, rsh.skyShader, 0, 0, NULL, drawSurf );
}
}
// keep track of the actual vbo chunk we need to render
R_AddSurfaceVBOSlice( surf, 0 );
// dynamic lights that affect the surface
if( dlightBits ) {
// ignore dlights that have already been marked as affectors
if( drawSurf->dlightFrame == rsc.frameCount ) {
drawSurf->dlightBits |= dlightBits;
} else {
drawSurf->dlightBits = dlightBits;
drawSurf->dlightFrame = rsc.frameCount;
}
}
// shadows that are projected onto the surface
if( shadowBits ) {
R_AddSurfaceVBOSlice( surf, rsh.worldBrushModel->numDrawSurfaces );
// ignore shadows that have already been marked as affectors
if( drawSurf->shadowFrame == rsc.frameCount ) {
drawSurf->shadowBits |= shadowBits;
} else {
drawSurf->shadowBits = shadowBits;
drawSurf->shadowFrame = rsc.frameCount;
}
}
rf.stats.c_brush_polys++;
rn.numVisSurfaces++;
}
/*
=================
R_FindBmodelMirrors
Check all bmodel surfaces and make personal mirror chain
=================
*/
void R_FindBmodelMirrors( cl_entity_t *e, qboolean static_entity )
{
mextrasurf_t *extrasurf;
vec3_t mins, maxs;
msurface_t *psurf;
model_t *clmodel;
qboolean rotated;
int i, clipFlags;
clmodel = e->model;
if( static_entity )
{
Matrix4x4_LoadIdentity( RI.objectMatrix );
if( R_CullBox( clmodel->mins, clmodel->maxs, RI.clipFlags ))
return;
VectorCopy( RI.cullorigin, tr.modelorg );
clipFlags = RI.clipFlags;
}
else
{
if( !VectorIsNull( e->angles ))
{
for( i = 0; i < 3; i++ )
{
mins[i] = e->origin[i] - clmodel->radius;
maxs[i] = e->origin[i] + clmodel->radius;
}
rotated = true;
}
else
{
VectorAdd( e->origin, clmodel->mins, mins );
VectorAdd( e->origin, clmodel->maxs, maxs );
rotated = false;
}
if( R_CullBox( mins, maxs, RI.clipFlags ))
return;
if( !VectorIsNull( e->origin ) || !VectorIsNull( e->angles ))
{
if( rotated ) Matrix4x4_CreateFromEntity( RI.objectMatrix, e->angles, e->origin, 1.0f );
else Matrix4x4_CreateFromEntity( RI.objectMatrix, vec3_origin, e->origin, 1.0f );
}
else Matrix4x4_LoadIdentity( RI.objectMatrix );
e->visframe = tr.framecount; // visible
if( rotated ) Matrix4x4_VectorITransform( RI.objectMatrix, RI.cullorigin, tr.modelorg );
else VectorSubtract( RI.cullorigin, e->origin, tr.modelorg );
clipFlags = 0;
}
psurf = &clmodel->surfaces[clmodel->firstmodelsurface];
for( i = 0; i < clmodel->nummodelsurfaces; i++, psurf++ )
{
if(!( psurf->flags & SURF_REFLECT ))
continue;
if( R_CullSurface( psurf, clipFlags ))
continue;
extrasurf = SURF_INFO( psurf, RI.currentmodel );
extrasurf->mirrorchain = tr.mirror_entities[tr.num_mirror_entities].chain;
tr.mirror_entities[tr.num_mirror_entities].chain = extrasurf;
}
// store new mirror entity
if( !static_entity && tr.mirror_entities[tr.num_mirror_entities].chain != NULL )
{
tr.mirror_entities[tr.num_mirror_entities].ent = RI.currententity;
tr.num_mirror_entities++;
}
}
/*
================
R_RecursiveMirrorNode
================
*/
void R_RecursiveMirrorNode( mnode_t *node, uint clipflags )
{
mextrasurf_t *extrasurf;
const mplane_t *clipplane;
int i, clipped;
msurface_t *surf, **mark;
mleaf_t *pleaf;
int c, side;
float dot;
if( node->contents == CONTENTS_SOLID )
return; // hit a solid leaf
if( node->visframe != tr.visframecount )
return;
if( clipflags )
{
for( i = 0, clipplane = RI.frustum; i < 6; i++, clipplane++ )
{
if(!( clipflags & ( 1<<i )))
continue;
clipped = BoxOnPlaneSide( node->minmaxs, node->minmaxs + 3, clipplane );
if( clipped == 2 ) return;
if( clipped == 1 ) clipflags &= ~(1<<i);
}
}
// if a leaf node, draw stuff
if( node->contents < 0 )
{
pleaf = (mleaf_t *)node;
mark = pleaf->firstmarksurface;
c = pleaf->nummarksurfaces;
if( c )
{
do
{
(*mark)->visframe = tr.framecount;
mark++;
} while( --c );
}
return;
}
// node is just a decision point, so go down the apropriate sides
// find which side of the node we are on
dot = PlaneDiff( tr.modelorg, node->plane );
side = (dot >= 0) ? 0 : 1;
// recurse down the children, front side first
R_RecursiveMirrorNode( node->children[side], clipflags );
// draw stuff
for( c = node->numsurfaces, surf = cl.worldmodel->surfaces + node->firstsurface; c; c--, surf++ )
{
if(!( surf->flags & SURF_REFLECT ))
continue;
if( R_CullSurface( surf, clipflags ))
continue;
extrasurf = SURF_INFO( surf, RI.currentmodel );
extrasurf->mirrorchain = tr.mirror_entities[0].chain;
tr.mirror_entities[0].chain = extrasurf;
}
// recurse down the back side
R_RecursiveMirrorNode( node->children[!side], clipflags );
}
/*
* R_AddSurfaceToDrawList
*/
static void R_AddSurfaceToDrawList( const entity_t *e, const msurface_t *surf, const mfog_t *fog,
unsigned int clipFlags, unsigned int dlightBits, unsigned shadowBits, float dist )
{
int order = 0;
shader_t *shader;
drawSurfaceBSP_t *drawSurf;
if( R_CullSurface( e, surf, clipFlags ) ) {
return;
}
if( r_drawworld->integer == 2 ) {
shader = rf.envShader;
} else {
shader = surf->shader;
if( shader->flags & SHADER_SKY ) {
if( !R_FASTSKY() ) {
R_AddSkyToDrawList( surf );
}
// fallthrough, but add with skyclip shader, writing to depthbuffer
// that will mask our skydome and prevent world geometry from
// bleeding through it
fog = NULL;
shader = rf.skyclipShader;
order = 1000;
}
}
drawSurf = surf->drawSurf;
if( drawSurf->visFrame != r_framecount ) {
portalSurface_t *portalSurface = NULL;
if( shader->flags & SHADER_PORTAL ) {
portalSurface = R_AddPortalSurface( e, surf->mesh, surf->mins, surf->maxs, shader );
}
drawSurf->visFrame = r_framecount;
if( !R_AddDSurfToDrawList( e, fog, shader, dist, order, portalSurface, drawSurf ) ) {
return;
}
}
// keep track of the actual vbo chunk we need to render
R_AddVBOSlice( drawSurf - r_worldbrushmodel->drawSurfaces,
surf->mesh->numVerts, surf->mesh->numElems,
surf->firstDrawSurfVert, surf->firstDrawSurfElem );
// dynamic lights that affect the surface
if( dlightBits && R_SurfPotentiallyLit( surf ) ) {
// ignore dlights that have already been marked as affectors
if( drawSurf->dlightFrame == rf.sceneFrameCount ) {
drawSurf->dlightBits |= dlightBits;
} else {
drawSurf->dlightBits = dlightBits;
drawSurf->dlightFrame = rf.sceneFrameCount;
}
}
// shadows that are projected onto the surface
if( shadowBits && R_SurfPotentiallyShadowed( surf ) ) {
// ignore shadows that have already been marked as affectors
if( drawSurf->shadowFrame == rf.sceneFrameCount ) {
drawSurf->shadowBits |= shadowBits;
} else {
drawSurf->shadowBits = shadowBits;
drawSurf->shadowFrame = rf.sceneFrameCount;
}
}
c_brush_polys++;
rn.numVisSurfaces++;
}
/*
* R_AddBrushModelToDrawList
*/
bool R_AddBrushModelToDrawList( const entity_t *e )
{
unsigned int i;
vec3_t origin;
vec3_t bmins, bmaxs;
bool rotated;
model_t *model = e->model;
mbrushmodel_t *bmodel = ( mbrushmodel_t * )model->extradata;
msurface_t *surf;
mfog_t *fog;
float radius, distance;
unsigned int bit, fullBits;
unsigned int dlightBits, shadowBits;
if( bmodel->nummodelsurfaces == 0 ) {
return false;
}
radius = R_BrushModelBBox( e, bmins, bmaxs, &rotated );
if( R_CullModelEntity( e, bmins, bmaxs, radius, rotated, false ) ) {
return false;
}
// never render weapon models or non-occluders into shadowmaps
if( rn.renderFlags & RF_SHADOWMAPVIEW ) {
if( rsc.entShadowGroups[R_ENT2NUM(e)] != rn.shadowGroup->id ) {
return true;
}
}
VectorAdd( e->model->mins, e->model->maxs, origin );
VectorMA( e->origin, 0.5, origin, origin );
distance = Distance( origin, rn.refdef.vieworg );
fog = R_FogForBounds( bmins, bmaxs );
R_TransformPointToModelSpace( e, rotated, rn.refdef.vieworg, modelOrg );
// check dynamic lights that matter in the instance against the model
dlightBits = 0;
for( i = 0, fullBits = rn.dlightBits, bit = 1; fullBits; i++, fullBits &= ~bit, bit <<= 1 ) {
if( !( fullBits & bit ) ) {
continue;
}
if( !BoundsAndSphereIntersect( bmins, bmaxs, rsc.dlights[i].origin, rsc.dlights[i].intensity ) ) {
continue;
}
dlightBits |= bit;
}
// check shadowmaps that matter in the instance against the model
shadowBits = 0;
for( i = 0, fullBits = rn.shadowBits; fullBits; i++, fullBits &= ~bit ) {
shadowGroup_t *grp = rsc.shadowGroups + i;
bit = grp->bit;
if( !( fullBits & bit ) ) {
continue;
}
if( !BoundsIntersect( bmins, bmaxs, grp->visMins, grp->visMaxs ) ) {
continue;
}
shadowBits |= bit;
}
for( i = 0, surf = bmodel->firstmodelsurface; i < bmodel->nummodelsurfaces; i++, surf++ ) {
int surfDlightBits, surfShadowBits;
if( !surf->drawSurf ) {
continue;
}
if( surf->visFrame != rf.frameCount ) {
surf->visFrame = rf.frameCount;
if( R_CullSurface( e, surf, 0 ) ) {
continue;
}
surfDlightBits = R_SurfPotentiallyLit( surf ) ? dlightBits : 0;
surfShadowBits = R_SurfPotentiallyShadowed( surf ) ? shadowBits : 0;
R_AddSurfaceToDrawList( e, surf, fog, surfDlightBits, surfShadowBits, distance );
}
}
return true;
}
