/*
* R_EnvShot_f
*/
void R_EnvShot_f( void )
{
int i;
int size, maxSize;
const char *writedir, *gamedir;
int checkname_size;
char *checkname;
refdef_t fd;
struct cubemapSufAndFlip
{
char *suf; vec3_t angles; int flags;
} cubemapShots[6] = {
{ "px", { 0, 0, 0 }, IT_FLIPX|IT_FLIPY|IT_FLIPDIAGONAL },
{ "nx", { 0, 180, 0 }, IT_FLIPDIAGONAL },
{ "py", { 0, 90, 0 }, IT_FLIPY },
{ "ny", { 0, 270, 0 }, IT_FLIPX },
{ "pz", { -90, 180, 0 }, IT_FLIPDIAGONAL },
{ "nz", { 90, 180, 0 }, IT_FLIPDIAGONAL }
};
if( !R_ScreenEnabled() || !rsh.worldModel )
return;
if( ri.Cmd_Argc() != 3 )
{
Com_Printf( "usage: envshot <name> <size>\n" );
return;
}
maxSize = min( min( glConfig.width, glConfig.height ), glConfig.maxTextureSize );
if( maxSize > atoi( ri.Cmd_Argv( 2 ) ) )
maxSize = atoi( ri.Cmd_Argv( 2 ) );
for( size = 1; size < maxSize; size <<= 1 ) ;
if( size > maxSize )
size >>= 1;
writedir = ri.FS_WriteDirectory();
gamedir = ri.FS_GameDirectory();
checkname_size = strlen( writedir ) + 1 + strlen( gamedir ) + strlen( "/env/" ) +
strlen( ri.Cmd_Argv( 1 ) ) + 1 + strlen( cubemapShots[0].suf ) + 4 + 1;
checkname = alloca( checkname_size );
fd = rsc.refdef;
fd.time = 0;
//fd.x = fd.y = 0;
fd.width = fd.height = size;
fd.fov_x = fd.fov_y = 90;
rn.farClip = R_DefaultFarClip();
// do not render non-bmodel entities
rn.renderFlags |= RF_CUBEMAPVIEW;
rn.clipFlags = 15;
rn.shadowGroup = NULL;
rn.fbColorAttachment = rn.fbDepthAttachment = NULL;
Vector4Set( rn.viewport, fd.x, glConfig.height - size - fd.y, size, size );
Vector4Set( rn.scissor, fd.x, glConfig.height - size - fd.y, size, size );
for( i = 0; i < 6; i++ )
{
AnglesToAxis( cubemapShots[i].angles, fd.viewaxis );
R_RenderView( &fd );
Q_snprintfz( checkname, checkname_size, "%s/%s/env/%s_%s", writedir, gamedir, ri.Cmd_Argv( 1 ), cubemapShots[i].suf );
COM_DefaultExtension( checkname, ".tga", checkname_size );
R_ScreenShot( checkname, 0, 0, size, size, 100,
( cubemapShots[i].flags & IT_FLIPX ) ? true : false,
( cubemapShots[i].flags & IT_FLIPY ) ? true : false,
( cubemapShots[i].flags & IT_FLIPDIAGONAL ) ? true : false,
false );
}
// render non-bmodel entities again
rn.renderFlags &= ~RF_CUBEMAPVIEW;
}
/*
* R_DrawPortalSurface
*
* Renders the portal view and captures the results from framebuffer if
* we need to do a $portalmap stage. Note that for $portalmaps we must
* use a different viewport.
*/
static void R_DrawPortalSurface( portalSurface_t *portalSurface )
{
unsigned int i;
int x, y, w, h;
float dist, d, best_d;
vec3_t viewerOrigin;
vec3_t origin;
mat3_t axis;
entity_t *ent, *best;
const entity_t *portal_ent = portalSurface->entity;
cplane_t *portal_plane = &portalSurface->plane, *untransformed_plane = &portalSurface->untransformed_plane;
const shader_t *shader = portalSurface->shader;
vec_t *portal_mins = portalSurface->mins, *portal_maxs = portalSurface->maxs;
vec_t *portal_centre = portalSurface->centre;
qboolean mirror, refraction = qfalse;
image_t *captureTexture;
int captureTextureId = -1;
int prevRenderFlags = 0;
qboolean doReflection, doRefraction;
image_t *portalTexures[2] = { NULL, NULL };
doReflection = doRefraction = qtrue;
if( shader->flags & SHADER_PORTAL_CAPTURE )
{
shaderpass_t *pass;
captureTexture = NULL;
captureTextureId = 0;
for( i = 0, pass = shader->passes; i < shader->numpasses; i++, pass++ )
{
if( pass->program_type == GLSL_PROGRAM_TYPE_DISTORTION )
{
if( ( pass->alphagen.type == ALPHA_GEN_CONST && pass->alphagen.args[0] == 1 ) )
doRefraction = qfalse;
else if( ( pass->alphagen.type == ALPHA_GEN_CONST && pass->alphagen.args[0] == 0 ) )
doReflection = qfalse;
break;
}
}
}
else
{
captureTexture = NULL;
captureTextureId = -1;
}
x = y = 0;
w = rn.refdef.width;
h = rn.refdef.height;
dist = PlaneDiff( rn.viewOrigin, portal_plane );
if( dist <= BACKFACE_EPSILON || !doReflection )
{
if( !( shader->flags & SHADER_PORTAL_CAPTURE2 ) || !doRefraction )
return;
// even if we're behind the portal, we still need to capture
// the second portal image for refraction
refraction = qtrue;
captureTexture = NULL;
captureTextureId = 1;
if( dist < 0 )
{
VectorInverse( portal_plane->normal );
portal_plane->dist = -portal_plane->dist;
}
}
if( !(rn.renderFlags & RF_NOVIS) && !R_ScissorForEntity( portal_ent, portal_mins, portal_maxs, &x, &y, &w, &h ) )
return;
mirror = qtrue; // default to mirror view
// it is stupid IMO that mirrors require a RT_PORTALSURFACE entity
best = NULL;
best_d = 100000000;
for( i = 1; i < rsc.numEntities; i++ )
{
ent = R_NUM2ENT(i);
if( ent->rtype != RT_PORTALSURFACE )
continue;
d = PlaneDiff( ent->origin, untransformed_plane );
if( ( d >= -64 ) && ( d <= 64 ) )
{
d = Distance( ent->origin, portal_centre );
if( d < best_d )
{
best = ent;
best_d = d;
}
}
}
if( best == NULL )
{
if( captureTextureId < 0 )
return;
}
else
{
if( !VectorCompare( best->origin, best->origin2 ) ) // portal
mirror = qfalse;
best->rtype = NUM_RTYPES;
}
prevRenderFlags = rn.renderFlags;
if( !R_PushRefInst() ) {
return;
}
VectorCopy( rn.viewOrigin, viewerOrigin );
setup_and_render:
if( refraction )
{
VectorInverse( portal_plane->normal );
portal_plane->dist = -portal_plane->dist - 1;
CategorizePlane( portal_plane );
VectorCopy( rn.viewOrigin, origin );
Matrix3_Copy( rn.refdef.viewaxis, axis );
VectorCopy( viewerOrigin, rn.pvsOrigin );
rn.renderFlags = RF_PORTALVIEW;
if( !mirror )
rn.renderFlags |= RF_PVSCULL;
}
else if( mirror )
{
VectorReflect( rn.viewOrigin, portal_plane->normal, portal_plane->dist, origin );
VectorReflect( &rn.viewAxis[AXIS_FORWARD], portal_plane->normal, 0, &axis[AXIS_FORWARD] );
VectorReflect( &rn.viewAxis[AXIS_RIGHT], portal_plane->normal, 0, &axis[AXIS_RIGHT] );
VectorReflect( &rn.viewAxis[AXIS_UP], portal_plane->normal, 0, &axis[AXIS_UP] );
Matrix3_Normalize( axis );
VectorCopy( viewerOrigin, rn.pvsOrigin );
rn.renderFlags = RF_MIRRORVIEW|RF_FLIPFRONTFACE;
}
else
{
vec3_t tvec;
mat3_t A, B, C, rot;
// build world-to-portal rotation matrix
VectorNegate( portal_plane->normal, tvec );
NormalVectorToAxis( tvec, A );
// build portal_dest-to-world rotation matrix
ByteToDir( best->frame, tvec );
NormalVectorToAxis( tvec, B );
Matrix3_Transpose( B, C );
// multiply to get world-to-world rotation matrix
Matrix3_Multiply( C, A, rot );
// translate view origin
VectorSubtract( rn.viewOrigin, best->origin, tvec );
Matrix3_TransformVector( rot, tvec, origin );
VectorAdd( origin, best->origin2, origin );
Matrix3_Transpose( A, B );
Matrix3_Multiply( rn.viewAxis, B, rot );
Matrix3_Multiply( best->axis, rot, B );
Matrix3_Transpose( C, A );
Matrix3_Multiply( B, A, axis );
// set up portal_plane
VectorCopy( &axis[AXIS_FORWARD], portal_plane->normal );
portal_plane->dist = DotProduct( best->origin2, portal_plane->normal );
CategorizePlane( portal_plane );
// for portals, vis data is taken from portal origin, not
// view origin, because the view point moves around and
// might fly into (or behind) a wall
rn.renderFlags = RF_PORTALVIEW|RF_PVSCULL;
VectorCopy( best->origin2, rn.pvsOrigin );
VectorCopy( best->origin2, rn.lodOrigin );
// ignore entities, if asked politely
if( best->renderfx & RF_NOPORTALENTS )
rn.renderFlags |= RF_NOENTS;
}
rn.renderFlags |= (prevRenderFlags & RF_SOFT_PARTICLES);
rn.refdef.rdflags &= ~( RDF_UNDERWATER|RDF_CROSSINGWATER );
rn.shadowGroup = NULL;
rn.meshlist = &r_portallist;
rn.renderFlags |= RF_CLIPPLANE;
rn.clipPlane = *portal_plane;
rn.farClip = R_DefaultFarClip();
rn.clipFlags |= ( 1<<5 );
rn.frustum[5] = *portal_plane;
CategorizePlane( &rn.frustum[5] );
// if we want to render to a texture, initialize texture
// but do not try to render to it more than once
if( captureTextureId >= 0 )
{
int texFlags = shader->flags & SHADER_NO_TEX_FILTERING ? IT_NOFILTERING : 0;
captureTexture = R_GetPortalTexture( rsc.refdef.width, rsc.refdef.height, texFlags,
rsc.frameCount );
portalTexures[captureTextureId] = captureTexture;
if( !captureTexture ) {
// couldn't register a slot for this plane
goto done;
}
x = y = 0;
w = captureTexture->upload_width;
h = captureTexture->upload_height;
rn.refdef.width = w;
rn.refdef.height = h;
rn.refdef.x = 0;
rn.refdef.y = 0;
rn.fbColorAttachment = captureTexture;
// no point in capturing the depth buffer due to oblique frustum messing up
// the far plane and depth values
rn.fbDepthAttachment = NULL;
Vector4Set( rn.viewport, rn.refdef.x + x, rn.refdef.y + y, w, h );
Vector4Set( rn.scissor, rn.refdef.x + x, rn.refdef.y + y, w, h );
}
else {
// no point in capturing the depth buffer due to oblique frustum messing up
// the far plane and depth values
rn.fbDepthAttachment = NULL;
Vector4Set( rn.scissor, rn.refdef.x + x, rn.refdef.y + y, w, h );
}
VectorCopy( origin, rn.refdef.vieworg );
Matrix3_Copy( axis, rn.refdef.viewaxis );
R_RenderView( &rn.refdef );
if( doRefraction && !refraction && ( shader->flags & SHADER_PORTAL_CAPTURE2 ) )
{
refraction = qtrue;
captureTexture = NULL;
captureTextureId = 1;
goto setup_and_render;
}
done:
portalSurface->texures[0] = portalTexures[0];
portalSurface->texures[1] = portalTexures[1];
R_PopRefInst( rn.fbDepthAttachment != NULL ? 0 : GL_DEPTH_BUFFER_BIT );
}
/*
* R_DrawSkyPortal
*/
void R_DrawSkyPortal( const entity_t *e, skyportal_t *skyportal, vec3_t mins, vec3_t maxs )
{
int x, y, w, h;
if( !R_ScissorForEntity( e, mins, maxs, &x, &y, &w, &h ) ) {
return;
}
if( !R_PushRefInst() ) {
return;
}
rn.renderFlags = ( rn.renderFlags|RF_SKYPORTALVIEW|RF_SOFT_PARTICLES );
VectorCopy( skyportal->vieworg, rn.pvsOrigin );
rn.farClip = R_DefaultFarClip();
rn.clipFlags = 15;
rn.shadowGroup = NULL;
rn.meshlist = &r_skyportallist;
//Vector4Set( rn.scissor, rn.refdef.x + x, rn.refdef.y + y, w, h );
if( skyportal->noEnts ) {
rn.renderFlags |= RF_NOENTS;
}
if( skyportal->scale )
{
vec3_t centre, diff;
VectorAdd( rsh.worldModel->mins, rsh.worldModel->maxs, centre );
VectorScale( centre, 0.5f, centre );
VectorSubtract( centre, rn.viewOrigin, diff );
VectorMA( skyportal->vieworg, -skyportal->scale, diff, rn.refdef.vieworg );
}
else
{
VectorCopy( skyportal->vieworg, rn.refdef.vieworg );
}
// FIXME
if( !VectorCompare( skyportal->viewanglesOffset, vec3_origin ) )
{
vec3_t angles;
mat3_t axis;
Matrix3_Copy( rn.refdef.viewaxis, axis );
VectorInverse( &axis[AXIS_RIGHT] );
Matrix3_ToAngles( axis, angles );
VectorAdd( angles, skyportal->viewanglesOffset, angles );
AnglesToAxis( angles, axis );
Matrix3_Copy( axis, rn.refdef.viewaxis );
}
rn.refdef.rdflags &= ~( RDF_UNDERWATER|RDF_CROSSINGWATER|RDF_SKYPORTALINVIEW );
if( skyportal->fov )
{
rn.refdef.fov_x = skyportal->fov;
rn.refdef.fov_y = CalcFov( rn.refdef.fov_x, rn.refdef.width, rn.refdef.height );
if( glConfig.wideScreen && !( rn.refdef.rdflags & RDF_NOFOVADJUSTMENT ) )
AdjustFov( &rn.refdef.fov_x, &rn.refdef.fov_y, glConfig.width, glConfig.height, qfalse );
}
R_RenderView( &rn.refdef );
// restore modelview and projection matrices, scissoring, etc for the main view
R_PopRefInst( ~GL_COLOR_BUFFER_BIT );
}
/*
* R_RenderScene
*/
void R_RenderScene( const refdef_t *fd )
{
int fbFlags = 0;
int ppFrontBuffer = 0;
image_t *ppSource;
if( r_norefresh->integer )
return;
R_Set2DMode( false );
RB_SetTime( fd->time );
if( !( fd->rdflags & RDF_NOWORLDMODEL ) )
rsc.refdef = *fd;
rn.refdef = *fd;
if( !rn.refdef.minLight ) {
rn.refdef.minLight = 0.1f;
}
fd = &rn.refdef;
rn.renderFlags = RF_NONE;
rn.farClip = R_DefaultFarClip();
rn.clipFlags = 15;
if( rsh.worldModel && !( fd->rdflags & RDF_NOWORLDMODEL ) && rsh.worldBrushModel->globalfog )
rn.clipFlags |= 16;
rn.meshlist = &r_worldlist;
rn.portalmasklist = &r_portalmasklist;
rn.shadowBits = 0;
rn.dlightBits = 0;
rn.shadowGroup = NULL;
fbFlags = 0;
rn.fbColorAttachment = rn.fbDepthAttachment = NULL;
if( !( fd->rdflags & RDF_NOWORLDMODEL ) ) {
if( r_soft_particles->integer && ( rsh.screenTexture != NULL ) ) {
rn.fbColorAttachment = rsh.screenTexture;
rn.fbDepthAttachment = rsh.screenDepthTexture;
rn.renderFlags |= RF_SOFT_PARTICLES;
fbFlags |= 1;
}
if( rsh.screenPPCopies[0] && rsh.screenPPCopies[1] ) {
int oldFlags = fbFlags;
shader_t *cc = rn.refdef.colorCorrection;
if( r_fxaa->integer ) {
fbFlags |= 2;
}
if( cc && cc->numpasses > 0 && cc->passes[0].images[0] && cc->passes[0].images[0] != rsh.noTexture ) {
fbFlags |= 4;
}
if( fbFlags != oldFlags ) {
if( !rn.fbColorAttachment ) {
rn.fbColorAttachment = rsh.screenPPCopies[0];
ppFrontBuffer = 1;
}
}
}
}
ppSource = rn.fbColorAttachment;
// clip new scissor region to the one currently set
Vector4Set( rn.scissor, fd->scissor_x, fd->scissor_y, fd->scissor_width, fd->scissor_height );
Vector4Set( rn.viewport, fd->x, fd->y, fd->width, fd->height );
VectorCopy( fd->vieworg, rn.pvsOrigin );
VectorCopy( fd->vieworg, rn.lodOrigin );
R_BindFrameBufferObject( 0 );
R_BuildShadowGroups();
R_RenderView( fd );
R_RenderDebugSurface( fd );
R_RenderDebugBounds();
R_BindFrameBufferObject( 0 );
R_Set2DMode( true );
if( !( fd->rdflags & RDF_NOWORLDMODEL ) ) {
ri.Mutex_Lock( rf.speedsMsgLock );
R_WriteSpeedsMessage( rf.speedsMsg, sizeof( rf.speedsMsg ) );
ri.Mutex_Unlock( rf.speedsMsgLock );
}
// blit and blend framebuffers in proper order
if( fbFlags == 1 ) {
// only blit soft particles directly when we don't have any other post processing
// otherwise use the soft particles FBO as the base texture on the next layer
// to avoid wasting time on resolves and the fragment shader to blit to a temp texture
R_BlitTextureToScrFbo( fd,
ppSource, 0,
GLSL_PROGRAM_TYPE_NONE,
colorWhite, 0,
0, NULL );
}
fbFlags &= ~1;
// apply FXAA
if( fbFlags & 2 ) {
image_t *dest;
fbFlags &= ~2;
dest = fbFlags ? rsh.screenPPCopies[ppFrontBuffer] : NULL;
R_BlitTextureToScrFbo( fd,
ppSource, dest ? dest->fbo : 0,
GLSL_PROGRAM_TYPE_FXAA,
colorWhite, 0,
0, NULL );
ppFrontBuffer ^= 1;
ppSource = dest;
}
// apply color correction
if( fbFlags & 4 ) {
image_t *dest;
fbFlags &= ~4;
dest = fbFlags ? rsh.screenPPCopies[ppFrontBuffer] : NULL;
R_BlitTextureToScrFbo( fd,
ppSource, dest ? dest->fbo : 0,
GLSL_PROGRAM_TYPE_COLORCORRECTION,
colorWhite, 0,
1, &( rn.refdef.colorCorrection->passes[0].images[0] ) );
}
}
for( size = 1; size < maxSize; size <<= 1 ) ;
if( size > maxSize ) {
size >>= 1;
}
checkname_size = strlen( path ) + strlen( name ) + 1 + strlen( cubemapShots[0].suf ) + 4 + 1;
checkname = alloca( checkname_size );
fd = rsc.refdef;
fd.time = 0;
//fd.x = fd.y = 0;
fd.width = fd.height = size;
fd.fov_x = fd.fov_y = 90;
rn.farClip = R_DefaultFarClip();
// do not render non-bmodel entities
rn.renderFlags |= RF_CUBEMAPVIEW;
rn.clipFlags = 15;
rn.shadowGroup = NULL;
rn.renderTarget = 0;
Vector4Set( rn.viewport, fd.x, glConfig.height - size - fd.y, size, size );
Vector4Set( rn.scissor, fd.x, glConfig.height - size - fd.y, size, size );
for( i = 0; i < 6; i++ ) {
AnglesToAxis( cubemapShots[i].angles, fd.viewaxis );
R_RenderView( &fd );
/*
* R_DrawSkyportal
*/
static void R_DrawSkyportal( const entity_t *e, skyportal_t *skyportal ) {
if( !R_PushRefInst() ) {
return;
}
rn.renderFlags = ( rn.renderFlags | RF_PORTALVIEW );
//rn.renderFlags &= ~RF_SOFT_PARTICLES;
VectorCopy( skyportal->vieworg, rn.pvsOrigin );
rn.nearClip = Z_NEAR;
rn.farClip = R_DefaultFarClip();
rn.polygonFactor = POLYOFFSET_FACTOR;
rn.polygonUnits = POLYOFFSET_UNITS;
rn.clipFlags = 15;
rn.meshlist = &r_skyportallist;
rn.portalmasklist = NULL;
rn.rtLight = NULL;
//Vector4Set( rn.scissor, rn.refdef.x + x, rn.refdef.y + y, w, h );
if( skyportal->noEnts ) {
rn.renderFlags |= RF_ENVVIEW;
}
if( skyportal->scale ) {
vec3_t centre, diff;
VectorAdd( rsh.worldModel->mins, rsh.worldModel->maxs, centre );
VectorScale( centre, 0.5f, centre );
VectorSubtract( centre, rn.viewOrigin, diff );
VectorMA( skyportal->vieworg, -skyportal->scale, diff, rn.refdef.vieworg );
} else {
VectorCopy( skyportal->vieworg, rn.refdef.vieworg );
}
// FIXME
if( !VectorCompare( skyportal->viewanglesOffset, vec3_origin ) ) {
vec3_t angles;
mat3_t axis;
Matrix3_Copy( rn.refdef.viewaxis, axis );
VectorInverse( &axis[AXIS_RIGHT] );
Matrix3_ToAngles( axis, angles );
VectorAdd( angles, skyportal->viewanglesOffset, angles );
AnglesToAxis( angles, axis );
Matrix3_Copy( axis, rn.refdef.viewaxis );
}
rn.refdef.rdflags &= ~( RDF_UNDERWATER | RDF_CROSSINGWATER | RDF_SKYPORTALINVIEW );
if( skyportal->fov ) {
rn.refdef.fov_y = WidescreenFov( skyportal->fov );
rn.refdef.fov_x = CalcHorizontalFov( rn.refdef.fov_y, rn.refdef.width, rn.refdef.height );
}
R_SetupViewMatrices( &rn.refdef );
R_SetupFrustum( &rn.refdef, rn.nearClip, rn.farClip, rn.frustum, rn.frustumCorners );
R_SetupPVS( &rn.refdef );
R_RenderView( &rn.refdef );
// restore modelview and projection matrices, scissoring, etc for the main view
R_PopRefInst();
}
/*
* R_DrawPortalSurface
*
* Renders the portal view and captures the results from framebuffer if
* we need to do a $portalmap stage. Note that for $portalmaps we must
* use a different viewport.
*/
static void R_DrawPortalSurface( portalSurface_t *portalSurface ) {
unsigned int i;
int x, y, w, h;
float dist, d, best_d;
vec3_t viewerOrigin;
vec3_t origin;
mat3_t axis;
entity_t *ent, *best;
cplane_t *portal_plane = &portalSurface->plane, *untransformed_plane = &portalSurface->untransformed_plane;
const shader_t *shader = portalSurface->shader;
vec_t *portal_centre = portalSurface->centre;
bool mirror, refraction = false;
image_t *captureTexture;
int captureTextureId = -1;
int prevRenderFlags = 0;
bool prevFlipped;
bool doReflection, doRefraction;
image_t *portalTexures[2] = { NULL, NULL };
doReflection = doRefraction = true;
if( shader->flags & SHADER_PORTAL_CAPTURE ) {
shaderpass_t *pass;
captureTexture = NULL;
captureTextureId = 0;
for( i = 0, pass = shader->passes; i < shader->numpasses; i++, pass++ ) {
if( pass->program_type == GLSL_PROGRAM_TYPE_DISTORTION ) {
if( ( pass->alphagen.type == ALPHA_GEN_CONST && pass->alphagen.args[0] == 1 ) ) {
doRefraction = false;
} else if( ( pass->alphagen.type == ALPHA_GEN_CONST && pass->alphagen.args[0] == 0 ) ) {
doReflection = false;
}
break;
}
}
} else {
captureTexture = NULL;
captureTextureId = -1;
}
x = y = 0;
w = rn.refdef.width;
h = rn.refdef.height;
dist = PlaneDiff( rn.viewOrigin, portal_plane );
if( dist <= BACKFACE_EPSILON || !doReflection ) {
if( !( shader->flags & SHADER_PORTAL_CAPTURE2 ) || !doRefraction ) {
return;
}
// even if we're behind the portal, we still need to capture
// the second portal image for refraction
refraction = true;
captureTexture = NULL;
captureTextureId = 1;
if( dist < 0 ) {
VectorInverse( portal_plane->normal );
portal_plane->dist = -portal_plane->dist;
}
}
mirror = true; // default to mirror view
// it is stupid IMO that mirrors require a RT_PORTALSURFACE entity
best = NULL;
best_d = 100000000;
for( i = 0; i < rn.numEntities; i++ ) {
ent = R_NUM2ENT( rn.entities[i] );
if( ent->rtype != RT_PORTALSURFACE ) {
continue;
}
d = PlaneDiff( ent->origin, untransformed_plane );
if( ( d >= -64 ) && ( d <= 64 ) ) {
d = Distance( ent->origin, portal_centre );
if( d < best_d ) {
best = ent;
best_d = d;
}
}
}
if( best == NULL ) {
if( captureTextureId < 0 ) {
// still do a push&pop because to ensure the clean state
if( R_PushRefInst() ) {
R_PopRefInst();
}
return;
}
} else {
if( !VectorCompare( best->origin, best->origin2 ) ) { // portal
mirror = false;
}
best->rtype = NUM_RTYPES;
}
prevRenderFlags = rn.renderFlags;
prevFlipped = ( rn.refdef.rdflags & RDF_FLIPPED ) != 0;
if( !R_PushRefInst() ) {
return;
}
VectorCopy( rn.viewOrigin, viewerOrigin );
if( prevFlipped ) {
VectorInverse( &rn.viewAxis[AXIS_RIGHT] );
}
setup_and_render:
if( refraction ) {
VectorInverse( portal_plane->normal );
portal_plane->dist = -portal_plane->dist;
CategorizePlane( portal_plane );
VectorCopy( rn.viewOrigin, origin );
Matrix3_Copy( rn.refdef.viewaxis, axis );
VectorCopy( viewerOrigin, rn.pvsOrigin );
rn.renderFlags |= RF_PORTALVIEW;
if( prevFlipped ) {
rn.renderFlags |= RF_FLIPFRONTFACE;
}
} else if( mirror ) {
VectorReflect( rn.viewOrigin, portal_plane->normal, portal_plane->dist, origin );
VectorReflect( &rn.viewAxis[AXIS_FORWARD], portal_plane->normal, 0, &axis[AXIS_FORWARD] );
VectorReflect( &rn.viewAxis[AXIS_RIGHT], portal_plane->normal, 0, &axis[AXIS_RIGHT] );
VectorReflect( &rn.viewAxis[AXIS_UP], portal_plane->normal, 0, &axis[AXIS_UP] );
Matrix3_Normalize( axis );
VectorCopy( viewerOrigin, rn.pvsOrigin );
rn.renderFlags = ( prevRenderFlags ^ RF_FLIPFRONTFACE ) | RF_MIRRORVIEW;
} else {
vec3_t tvec;
mat3_t A, B, C, rot;
// build world-to-portal rotation matrix
VectorNegate( portal_plane->normal, tvec );
NormalVectorToAxis( tvec, A );
// build portal_dest-to-world rotation matrix
ByteToDir( best->frame, tvec );
NormalVectorToAxis( tvec, B );
Matrix3_Transpose( B, C );
// multiply to get world-to-world rotation matrix
Matrix3_Multiply( C, A, rot );
// translate view origin
VectorSubtract( rn.viewOrigin, best->origin, tvec );
Matrix3_TransformVector( rot, tvec, origin );
VectorAdd( origin, best->origin2, origin );
Matrix3_Transpose( A, B );
Matrix3_Multiply( rn.viewAxis, B, rot );
Matrix3_Multiply( best->axis, rot, B );
Matrix3_Transpose( C, A );
Matrix3_Multiply( B, A, axis );
// set up portal_plane
VectorCopy( &axis[AXIS_FORWARD], portal_plane->normal );
portal_plane->dist = DotProduct( best->origin2, portal_plane->normal );
CategorizePlane( portal_plane );
// for portals, vis data is taken from portal origin, not
// view origin, because the view point moves around and
// might fly into (or behind) a wall
VectorCopy( best->origin2, rn.pvsOrigin );
VectorCopy( best->origin2, rn.lodOrigin );
rn.renderFlags |= RF_PORTALVIEW;
// ignore entities, if asked politely
if( best->renderfx & RF_NOPORTALENTS ) {
rn.renderFlags |= RF_ENVVIEW;
}
if( prevFlipped ) {
rn.renderFlags |= RF_FLIPFRONTFACE;
}
}
rn.refdef.rdflags &= ~( RDF_UNDERWATER | RDF_CROSSINGWATER | RDF_FLIPPED );
rn.meshlist = &r_portallist;
rn.portalmasklist = NULL;
rn.renderFlags |= RF_CLIPPLANE;
rn.renderFlags &= ~RF_SOFT_PARTICLES;
rn.clipPlane = *portal_plane;
rn.nearClip = Z_NEAR;
rn.farClip = R_DefaultFarClip();
rn.polygonFactor = POLYOFFSET_FACTOR;
rn.polygonUnits = POLYOFFSET_UNITS;
rn.clipFlags |= 16;
rn.frustum[4] = *portal_plane; // nearclip
CategorizePlane( &rn.frustum[4] );
// if we want to render to a texture, initialize texture
// but do not try to render to it more than once
if( captureTextureId >= 0 ) {
int texFlags = shader->flags & SHADER_NO_TEX_FILTERING ? IT_NOFILTERING : 0;
captureTexture = R_GetPortalTexture( rsc.refdef.width, rsc.refdef.height, texFlags,
rsc.frameCount );
portalTexures[captureTextureId] = captureTexture;
if( !captureTexture ) {
// couldn't register a slot for this plane
goto done;
}
x = y = 0;
w = captureTexture->upload_width;
h = captureTexture->upload_height;
rn.refdef.width = w;
rn.refdef.height = h;
rn.refdef.x = 0;
rn.refdef.y = 0;
rn.renderTarget = captureTexture->fbo;
rn.renderFlags |= RF_PORTAL_CAPTURE;
Vector4Set( rn.viewport, rn.refdef.x + x, rn.refdef.y + y, w, h );
Vector4Set( rn.scissor, rn.refdef.x + x, rn.refdef.y + y, w, h );
} else {
rn.renderFlags &= ~RF_PORTAL_CAPTURE;
}
VectorCopy( origin, rn.refdef.vieworg );
Matrix3_Copy( axis, rn.refdef.viewaxis );
R_SetupViewMatrices( &rn.refdef );
R_SetupFrustum( &rn.refdef, rn.nearClip, rn.farClip, rn.frustum, rn.frustumCorners );
R_SetupPVS( &rn.refdef );
R_RenderView( &rn.refdef );
if( doRefraction && !refraction && ( shader->flags & SHADER_PORTAL_CAPTURE2 ) ) {
rn.renderFlags = prevRenderFlags;
refraction = true;
captureTexture = NULL;
captureTextureId = 1;
goto setup_and_render;
}
done:
portalSurface->texures[0] = portalTexures[0];
portalSurface->texures[1] = portalTexures[1];
R_PopRefInst();
}
/*
* R_RenderScene
*/
void R_RenderScene( const refdef_t *fd )
{
int fbFlags = 0;
if( r_norefresh->integer )
return;
R_Set2DMode( qfalse );
RB_SetTime( fd->time );
if( !( fd->rdflags & RDF_NOWORLDMODEL ) )
rsc.refdef = *fd;
rn.refdef = *fd;
if( !rn.refdef.minLight ) {
rn.refdef.minLight = 0.1f;
}
if( !rsh.screenWeaponTexture || rn.refdef.weaponAlpha == 1 ) {
rn.refdef.rdflags &= ~RDF_WEAPONALPHA;
}
fd = &rn.refdef;
rn.renderFlags = RF_NONE;
rn.farClip = R_DefaultFarClip();
rn.clipFlags = 15;
if( rsh.worldModel && !( fd->rdflags & RDF_NOWORLDMODEL ) && rsh.worldBrushModel->globalfog )
rn.clipFlags |= 16;
rn.meshlist = &r_worldlist;
rn.shadowBits = 0;
rn.dlightBits = 0;
rn.shadowGroup = NULL;
fbFlags = 0;
rn.fbColorAttachment = rn.fbDepthAttachment = NULL;
if( !( fd->rdflags & RDF_NOWORLDMODEL ) ) {
// soft particles require GL_EXT_framebuffer_blit as we need to copy the depth buffer
// attachment into a texture we're going to read from in GLSL shader
if( r_soft_particles->integer && glConfig.ext.framebuffer_blit && ( rsh.screenTexture != NULL ) ) {
rn.fbColorAttachment = rsh.screenTexture;
rn.fbDepthAttachment = rsh.screenDepthTexture;
rn.renderFlags |= RF_SOFT_PARTICLES;
fbFlags |= 1;
}
if( ( fd->rdflags & RDF_WEAPONALPHA ) && ( rsh.screenWeaponTexture != NULL ) ) {
fbFlags |= 2;
}
if( r_fxaa->integer && ( rsh.screenFxaaCopy != NULL ) ) {
if( !rn.fbColorAttachment ) {
rn.fbColorAttachment = rsh.screenFxaaCopy;
}
fbFlags |= 4;
}
}
// adjust field of view for widescreen
if( glConfig.wideScreen && !( fd->rdflags & RDF_NOFOVADJUSTMENT ) )
AdjustFov( &rn.refdef.fov_x, &rn.refdef.fov_y, glConfig.width, glConfig.height, qfalse );
// clip new scissor region to the one currently set
Vector4Set( rn.scissor, fd->scissor_x, fd->scissor_y, fd->scissor_width, fd->scissor_height );
Vector4Set( rn.viewport, fd->x, fd->y, fd->width, fd->height );
VectorCopy( fd->vieworg, rn.pvsOrigin );
VectorCopy( fd->vieworg, rn.lodOrigin );
if( gl_finish->integer && !( fd->rdflags & RDF_NOWORLDMODEL ) )
qglFinish();
if( fbFlags & 2 ) {
// clear the framebuffer we're going to render the weapon model to
// set the alpha to 0, visible parts of the model will overwrite that,
// creating proper alpha mask
R_BindFrameBufferObject( rsh.screenWeaponTexture->fbo );
RB_Clear( GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT, 0, 0, 0, 0 );
}
R_BindFrameBufferObject( 0 );
R_BuildShadowGroups();
R_RenderView( fd );
R_RenderDebugSurface( fd );
R_RenderDebugBounds();
R_BindFrameBufferObject( 0 );
R_Set2DMode( qtrue );
// blit and blend framebuffers in proper order
if( fbFlags & 1 ) {
// copy to FXAA or default framebuffer
R_BlitTextureToScrFbo( fd, rn.fbColorAttachment,
fbFlags & 4 ? rsh.screenFxaaCopy->fbo : 0,
GLSL_PROGRAM_TYPE_NONE,
colorWhite, 0 );
}
if( fbFlags & 2 ) {
vec4_t color = { 1, 1, 1, 1 };
color[3] = fd->weaponAlpha;
// blend to FXAA or default framebuffer
R_BlitTextureToScrFbo( fd, rsh.screenWeaponTexture,
fbFlags & 4 ? rsh.screenFxaaCopy->fbo : 0,
GLSL_PROGRAM_TYPE_NONE,
color, GLSTATE_SRCBLEND_SRC_ALPHA|GLSTATE_DSTBLEND_ONE_MINUS_SRC_ALPHA );
}
// blit FXAA to default framebuffer
if( fbFlags & 4 ) {
// blend to FXAA or default framebuffer
R_BlitTextureToScrFbo( fd, rsh.screenFxaaCopy, 0,
GLSL_PROGRAM_TYPE_FXAA,
colorWhite, 0 );
}
}
