/*
=================
idCommonLocal::Frame
=================
*/
void idCommonLocal::Frame() {
try {
SCOPED_PROFILE_EVENT( "Common::Frame" );
// This is the only place this is incremented
idLib::frameNumber++;
// allow changing SIMD usage on the fly
if ( com_forceGenericSIMD.IsModified() ) {
idSIMD::InitProcessor( "doom", com_forceGenericSIMD.GetBool() );
com_forceGenericSIMD.ClearModified();
}
// Do the actual switch between Doom 3 and the classics here so
// that things don't get confused in the middle of the frame.
PerformGameSwitch();
// pump all the events
Sys_GenerateEvents();
// write config file if anything changed
WriteConfiguration();
eventLoop->RunEventLoop();
// Activate the shell if it's been requested
if ( showShellRequested && game ) {
game->Shell_Show( true );
showShellRequested = false;
}
// if the console or another gui is down, we don't need to hold the mouse cursor
bool chatting = false;
if ( console->Active() || Dialog().IsDialogActive() || session->IsSystemUIShowing() || ( game && game->InhibitControls() && !IsPlayingDoomClassic() ) ) {
Sys_GrabMouseCursor( false );
usercmdGen->InhibitUsercmd( INHIBIT_SESSION, true );
chatting = true;
} else {
Sys_GrabMouseCursor( true );
usercmdGen->InhibitUsercmd( INHIBIT_SESSION, false );
}
const bool pauseGame = ( !mapSpawned || ( !IsMultiplayer() && ( Dialog().IsDialogPausing() || session->IsSystemUIShowing() || ( game && game->Shell_IsActive() ) ) ) ) && !IsPlayingDoomClassic();
// save the screenshot and audio from the last draw if needed
if ( aviCaptureMode ) {
idStr name = va("demos/%s/%s_%05i.tga", aviDemoShortName.c_str(), aviDemoShortName.c_str(), aviDemoFrameCount++ );
renderSystem->TakeScreenshot( com_aviDemoWidth.GetInteger(), com_aviDemoHeight.GetInteger(), name, com_aviDemoSamples.GetInteger(), NULL );
// remove any printed lines at the top before taking the screenshot
console->ClearNotifyLines();
// this will call Draw, possibly multiple times if com_aviDemoSamples is > 1
renderSystem->TakeScreenshot( com_aviDemoWidth.GetInteger(), com_aviDemoHeight.GetInteger(), name, com_aviDemoSamples.GetInteger(), NULL );
}
//--------------------------------------------
// wait for the GPU to finish drawing
//
// It is imporant to minimize the time spent between this
// section and the call to renderSystem->RenderCommandBuffers(),
// because the GPU is completely idle.
//--------------------------------------------
// this should exit right after vsync, with the GPU idle and ready to draw
// This may block if the GPU isn't finished renderng the previous frame.
frameTiming.startSyncTime = Sys_Microseconds();
const emptyCommand_t * renderCommands = NULL;
if ( com_smp.GetBool() ) {
renderCommands = renderSystem->SwapCommandBuffers( &time_frontend, &time_backend, &time_shadows, &time_gpu );
} else {
// the GPU will stay idle through command generation for minimal
// input latency
renderSystem->SwapCommandBuffers_FinishRendering( &time_frontend, &time_backend, &time_shadows, &time_gpu );
}
frameTiming.finishSyncTime = Sys_Microseconds();
//--------------------------------------------
// Determine how many game tics we are going to run,
// now that the previous frame is completely finished.
//
// It is important that any waiting on the GPU be done
// before this, or there will be a bad stuttering when
// dropping frames for performance management.
//--------------------------------------------
// input:
// thisFrameTime
// com_noSleep
// com_engineHz
// com_fixedTic
// com_deltaTimeClamp
// IsMultiplayer
//
// in/out state:
// gameFrame
// gameTimeResidual
// lastFrameTime
// syncNextFrame
//
// Output:
// numGameFrames
// How many game frames to run
int numGameFrames = 0;
for(;;) {
const int thisFrameTime = Sys_Milliseconds();
static int lastFrameTime = thisFrameTime; // initialized only the first time
const int deltaMilliseconds = thisFrameTime - lastFrameTime;
lastFrameTime = thisFrameTime;
// if there was a large gap in time since the last frame, or the frame
// rate is very very low, limit the number of frames we will run
const int clampedDeltaMilliseconds = Min( deltaMilliseconds, com_deltaTimeClamp.GetInteger() );
gameTimeResidual += clampedDeltaMilliseconds * timescale.GetFloat();
// don't run any frames when paused
if ( pauseGame ) {
gameFrame++;
gameTimeResidual = 0;
break;
}
// debug cvar to force multiple game tics
if ( com_fixedTic.GetInteger() > 0 ) {
numGameFrames = com_fixedTic.GetInteger();
gameFrame += numGameFrames;
gameTimeResidual = 0;
break;
}
if ( syncNextGameFrame ) {
// don't sleep at all
syncNextGameFrame = false;
gameFrame++;
numGameFrames++;
gameTimeResidual = 0;
break;
}
for ( ;; ) {
// How much time to wait before running the next frame,
// based on com_engineHz
const int frameDelay = FRAME_TO_MSEC( gameFrame + 1 ) - FRAME_TO_MSEC( gameFrame );
if ( gameTimeResidual < frameDelay ) {
break;
}
gameTimeResidual -= frameDelay;
gameFrame++;
numGameFrames++;
// if there is enough residual left, we may run additional frames
}
if ( numGameFrames > 0 ) {
// ready to actually run them
break;
}
// if we are vsyncing, we always want to run at least one game
// frame and never sleep, which might happen due to scheduling issues
// if we were just looking at real time.
if ( com_noSleep.GetBool() ) {
numGameFrames = 1;
gameFrame += numGameFrames;
gameTimeResidual = 0;
break;
}
// not enough time has passed to run a frame, as might happen if
// we don't have vsync on, or the monitor is running at 120hz while
// com_engineHz is 60, so sleep a bit and check again
Sys_Sleep( 0 );
}
//--------------------------------------------
// It would be better to push as much of this as possible
// either before or after the renderSystem->SwapCommandBuffers(),
// because the GPU is completely idle.
//--------------------------------------------
// Update session and syncronize to the new session state after sleeping
session->UpdateSignInManager();
session->Pump();
session->ProcessSnapAckQueue();
if ( session->GetState() == idSession::LOADING ) {
// If the session reports we should be loading a map, load it!
ExecuteMapChange();
mapSpawnData.savegameFile = NULL;
mapSpawnData.persistentPlayerInfo.Clear();
return;
} else if ( session->GetState() != idSession::INGAME && mapSpawned ) {
// If the game is running, but the session reports we are not in a game, disconnect
// This happens when a server disconnects us or we sign out
LeaveGame();
return;
}
if ( mapSpawned && !pauseGame ) {
if ( IsClient() ) {
RunNetworkSnapshotFrame();
}
}
ExecuteReliableMessages();
// send frame and mouse events to active guis
GuiFrameEvents();
//--------------------------------------------
// Prepare usercmds and kick off the game processing
// in a background thread
//--------------------------------------------
// get the previous usercmd for bypassed head tracking transform
const usercmd_t previousCmd = usercmdGen->GetCurrentUsercmd();
// build a new usercmd
int deviceNum = session->GetSignInManager().GetMasterInputDevice();
usercmdGen->BuildCurrentUsercmd( deviceNum );
if ( deviceNum == -1 ) {
for ( int i = 0; i < MAX_INPUT_DEVICES; i++ ) {
Sys_PollJoystickInputEvents( i );
Sys_EndJoystickInputEvents();
}
}
if ( pauseGame ) {
usercmdGen->Clear();
}
usercmd_t newCmd = usercmdGen->GetCurrentUsercmd();
// Store server game time - don't let time go past last SS time in case we are extrapolating
if ( IsClient() ) {
newCmd.serverGameMilliseconds = std::min( Game()->GetServerGameTimeMs(), Game()->GetSSEndTime() );
} else {
newCmd.serverGameMilliseconds = Game()->GetServerGameTimeMs();
}
userCmdMgr.MakeReadPtrCurrentForPlayer( Game()->GetLocalClientNum() );
// Stuff a copy of this userCmd for each game frame we are going to run.
// Ideally, the usercmds would be built in another thread so you could
// still get 60hz control accuracy when the game is running slower.
for ( int i = 0 ; i < numGameFrames ; i++ ) {
newCmd.clientGameMilliseconds = FRAME_TO_MSEC( gameFrame-numGameFrames+i+1 );
userCmdMgr.PutUserCmdForPlayer( game->GetLocalClientNum(), newCmd );
}
// If we're in Doom or Doom 2, run tics and upload the new texture.
if ( ( GetCurrentGame() == DOOM_CLASSIC || GetCurrentGame() == DOOM2_CLASSIC ) && !( Dialog().IsDialogPausing() || session->IsSystemUIShowing() ) ) {
RunDoomClassicFrame();
}
// start the game / draw command generation thread going in the background
gameReturn_t ret = gameThread.RunGameAndDraw( numGameFrames, userCmdMgr, IsClient(), gameFrame - numGameFrames );
if ( !com_smp.GetBool() ) {
// in non-smp mode, run the commands we just generated, instead of
// frame-delayed ones from a background thread
renderCommands = renderSystem->SwapCommandBuffers_FinishCommandBuffers();
}
//----------------------------------------
// Run the render back end, getting the GPU busy with new commands
// ASAP to minimize the pipeline bubble.
//----------------------------------------
frameTiming.startRenderTime = Sys_Microseconds();
renderSystem->RenderCommandBuffers( renderCommands );
if ( com_sleepRender.GetInteger() > 0 ) {
// debug tool to test frame adaption
Sys_Sleep( com_sleepRender.GetInteger() );
}
frameTiming.finishRenderTime = Sys_Microseconds();
// make sure the game / draw thread has completed
// This may block if the game is taking longer than the render back end
gameThread.WaitForThread();
// Send local usermds to the server.
// This happens after the game frame has run so that prediction data is up to date.
SendUsercmds( Game()->GetLocalClientNum() );
// Now that we have an updated game frame, we can send out new snapshots to our clients
session->Pump(); // Pump to get updated usercmds to relay
SendSnapshots();
// Render the sound system using the latest commands from the game thread
if ( pauseGame ) {
soundWorld->Pause();
soundSystem->SetPlayingSoundWorld( menuSoundWorld );
} else {
soundWorld->UnPause();
soundSystem->SetPlayingSoundWorld( soundWorld );
}
soundSystem->Render();
// process the game return for map changes, etc
ProcessGameReturn( ret );
idLobbyBase & lobby = session->GetActivePlatformLobbyBase();
if ( lobby.HasActivePeers() ) {
if ( net_drawDebugHud.GetInteger() == 1 ) {
lobby.DrawDebugNetworkHUD();
}
if ( net_drawDebugHud.GetInteger() == 2 ) {
lobby.DrawDebugNetworkHUD2();
}
lobby.DrawDebugNetworkHUD_ServerSnapshotMetrics( net_drawDebugHud.GetInteger() == 3 );
}
// report timing information
if ( com_speeds.GetBool() ) {
static int lastTime = Sys_Milliseconds();
int nowTime = Sys_Milliseconds();
int com_frameMsec = nowTime - lastTime;
lastTime = nowTime;
Printf( "frame:%d all:%3d gfr:%3d rf:%3lld bk:%3lld\n", idLib::frameNumber, com_frameMsec, time_gameFrame, time_frontend / 1000, time_backend / 1000 );
time_gameFrame = 0;
time_gameDraw = 0;
}
// the FPU stack better be empty at this point or some bad code or compiler bug left values on the stack
if ( !Sys_FPU_StackIsEmpty() ) {
Printf( Sys_FPU_GetState() );
FatalError( "idCommon::Frame: the FPU stack is not empty at the end of the frame\n" );
}
mainFrameTiming = frameTiming;
session->GetSaveGameManager().Pump();
} catch( idException & ) {
return; // an ERP_DROP was thrown
}
}
/*
===============
idCommonLocal::ExecuteMapChange
Performs the initialization of a game based on session match parameters, used for both single
player and multiplayer, but not for renderDemos, which don't create a game at all.
Exits with mapSpawned = true
===============
*/
void idCommonLocal::ExecuteMapChange() {
if ( session->GetState() != idSession::LOADING ) {
idLib::Warning( "Session state is not LOADING in ExecuteMapChange" );
return;
}
// Clear all dialogs before beginning the load
common->Dialog().ClearDialogs( true );
// Remember the current load ID.
// This is so we can tell if we had a new loadmap request from within an existing loadmap call
const int cachedLoadingID = session->GetLoadingID();
const idMatchParameters & matchParameters = session->GetActingGameStateLobbyBase().GetMatchParms();
if ( matchParameters.numSlots <= 0 ) {
idLib::Warning( "numSlots <= 0 in ExecuteMapChange" );
return;
}
insideExecuteMapChange = true;
common->Printf( "--------- Execute Map Change ---------\n" );
common->Printf( "Map: %s\n", matchParameters.mapName.c_str() );
// ensure that r_znear is reset to the default value
// this fixes issues with the projection matrix getting messed up when switching maps or loading a saved game
// while an in-game cinematic is playing.
cvarSystem->SetCVarFloat( "r_znear", 1.0f );
// reset all cheat cvars for a multiplayer game
if ( IsMultiplayer() ) {
cvarSystem->ResetFlaggedVariables( CVAR_CHEAT );
}
int start = Sys_Milliseconds();
for ( int i = 0; i < MAX_INPUT_DEVICES; i++ ) {
Sys_SetRumble( i, 0, 0 );
}
// close console and remove any prints from the notify lines
console->Close();
// clear all menu sounds
soundWorld->Pause();
menuSoundWorld->ClearAllSoundEmitters();
soundSystem->SetPlayingSoundWorld( menuSoundWorld );
soundSystem->Render();
// extract the map name from serverinfo
currentMapName = matchParameters.mapName;
currentMapName.StripFileExtension();
idStrStatic< MAX_OSPATH > fullMapName = "maps/";
fullMapName += currentMapName;
fullMapName.SetFileExtension( "map" );
if ( mapSpawnData.savegameFile ) {
fileSystem->BeginLevelLoad( currentMapName, NULL, 0 );
} else {
fileSystem->BeginLevelLoad( currentMapName, saveFile.GetDataPtr(), saveFile.GetAllocated() );
}
// capture the current screen and start a wipe
// immediately complete the wipe to fade out the level transition
// run the wipe to completion
StartWipe( "wipeMaterial", true );
CompleteWipe();
int sm = Sys_Milliseconds();
// shut down the existing game if it is running
UnloadMap();
int ms = Sys_Milliseconds() - sm;
common->Printf( "%6d msec to unload map\n", ms );
// Free media from previous level and
// note which media we are going to need to load
sm = Sys_Milliseconds();
renderSystem->BeginLevelLoad();
soundSystem->BeginLevelLoad();
declManager->BeginLevelLoad();
uiManager->BeginLevelLoad();
ms = Sys_Milliseconds() - sm;
common->Printf( "%6d msec to free assets\n", ms );
//Sys_DumpMemory( true );
// load / program a gui to stay up on the screen while loading
// set the loading gui that we will wipe to
bool hellMap = false;
LoadLoadingGui( currentMapName, hellMap );
// Stop rendering the wipe
ClearWipe();
if ( fileSystem->UsingResourceFiles() ) {
idStrStatic< MAX_OSPATH > manifestName = currentMapName;
manifestName.Replace( "game/", "maps/" );
manifestName.Replace( "/mp/", "/" );
manifestName += ".preload";
idPreloadManifest manifest;
manifest.LoadManifest( manifestName );
renderSystem->Preload( manifest, currentMapName );
soundSystem->Preload( manifest );
game->Preload( manifest );
}
if ( common->IsMultiplayer() ) {
// In multiplayer, make sure the player is either 60Hz or 120Hz
// to avoid potential issues.
const float mpEngineHz = ( com_engineHz.GetFloat() < 90.0f ) ? 60.0f : 120.0f;
com_engineHz_denominator = 100LL * mpEngineHz;
com_engineHz_latched = mpEngineHz;
} else {
// allow com_engineHz to be changed between map loads
com_engineHz_denominator = 100LL * com_engineHz.GetFloat();
com_engineHz_latched = com_engineHz.GetFloat();
}
// note any warning prints that happen during the load process
common->ClearWarnings( currentMapName );
// release the mouse cursor
// before we do this potentially long operation
Sys_GrabMouseCursor( false );
// let the renderSystem load all the geometry
if ( !renderWorld->InitFromMap( fullMapName ) ) {
common->Error( "couldn't load %s", fullMapName.c_str() );
}
// for the synchronous networking we needed to roll the angles over from
// level to level, but now we can just clear everything
usercmdGen->InitForNewMap();
// load and spawn all other entities ( from a savegame possibly )
if ( mapSpawnData.savegameFile ) {
if ( !game->InitFromSaveGame( fullMapName, renderWorld, soundWorld, mapSpawnData.savegameFile, mapSpawnData.stringTableFile, mapSpawnData.savegameVersion ) ) {
// If the loadgame failed, end the session, which will force us to go back to the main menu
session->QuitMatchToTitle();
}
} else {
if ( !IsMultiplayer() ) {
assert( game->GetLocalClientNum() == 0 );
assert( matchParameters.gameMode == GAME_MODE_SINGLEPLAYER );
assert( matchParameters.gameMap == GAME_MAP_SINGLEPLAYER );
game->SetPersistentPlayerInfo( 0, mapSpawnData.persistentPlayerInfo );
}
game->SetServerInfo( matchParameters.serverInfo );
game->InitFromNewMap( fullMapName, renderWorld, soundWorld, matchParameters.gameMode, Sys_Milliseconds() );
}
game->Shell_CreateMenu( true );
// Reset some values important to multiplayer
ResetNetworkingState();
// If the session state is not loading here, something went wrong.
if ( session->GetState() == idSession::LOADING && session->GetLoadingID() == cachedLoadingID ) {
// Notify session we are done loading
session->LoadingFinished();
while ( session->GetState() == idSession::LOADING ) {
Sys_GenerateEvents();
session->UpdateSignInManager();
session->Pump();
Sys_Sleep( 10 );
}
}
if ( !mapSpawnData.savegameFile ) {
// run a single frame to catch any resources that are referenced by events posted in spawn
idUserCmdMgr emptyCommandManager;
gameReturn_t emptyGameReturn;
for ( int playerIndex = 0; playerIndex < MAX_PLAYERS; ++playerIndex ) {
emptyCommandManager.PutUserCmdForPlayer( playerIndex, usercmd_t() );
}
if ( IsClient() ) {
game->ClientRunFrame( emptyCommandManager, false, emptyGameReturn );
} else {
game->RunFrame( emptyCommandManager, emptyGameReturn );
}
}
renderSystem->EndLevelLoad();
soundSystem->EndLevelLoad();
declManager->EndLevelLoad();
uiManager->EndLevelLoad( currentMapName );
fileSystem->EndLevelLoad();
if ( !mapSpawnData.savegameFile && !IsMultiplayer() ) {
common->Printf( "----- Running initial game frames -----\n" );
// In single player, run a bunch of frames to make sure ragdolls are settled
idUserCmdMgr emptyCommandManager;
gameReturn_t emptyGameReturn;
for ( int i = 0; i < 100; i++ ) {
for ( int playerIndex = 0; playerIndex < MAX_PLAYERS; ++playerIndex ) {
emptyCommandManager.PutUserCmdForPlayer( playerIndex, usercmd_t() );
}
game->RunFrame( emptyCommandManager, emptyGameReturn );
}
// kick off an auto-save of the game (so we can always continue in this map if we die before hitting an autosave)
common->Printf( "----- Saving Game -----\n" );
SaveGame( "autosave" );
}
common->Printf( "----- Generating Interactions -----\n" );
// let the renderSystem generate interactions now that everything is spawned
renderWorld->GenerateAllInteractions();
{
int vertexMemUsedKB = vertexCache.staticData.vertexMemUsed.GetValue() / 1024;
int indexMemUsedKB = vertexCache.staticData.indexMemUsed.GetValue() / 1024;
idLib::Printf( "Used %dkb of static vertex memory (%d%%)\n", vertexMemUsedKB, vertexMemUsedKB * 100 / ( STATIC_VERTEX_MEMORY / 1024 ) );
idLib::Printf( "Used %dkb of static index memory (%d%%)\n", indexMemUsedKB, indexMemUsedKB * 100 / ( STATIC_INDEX_MEMORY / 1024 ) );
}
if ( common->JapaneseCensorship() ) {
if ( currentMapName.Icmp( "game/mp/d3xpdm3" ) == 0 ) {
const idMaterial * gizpool2 = declManager->FindMaterial( "textures/hell/gizpool2" );
idMaterial * chiglass1bluex = const_cast<idMaterial *>( declManager->FindMaterial( "textures/sfx/chiglass1bluex" ) );
idTempArray<char> text( gizpool2->GetTextLength() );
gizpool2->GetText( text.Ptr() );
chiglass1bluex->Parse( text.Ptr(), text.Num(), false );
}
}
common->PrintWarnings();
session->Pump();
if ( session->GetState() != idSession::INGAME ) {
// Something went wrong, don't process stale reliables that have been queued up.
reliableQueue.Clear();
}
usercmdGen->Clear();
// remove any prints from the notify lines
console->ClearNotifyLines();
Sys_SetPhysicalWorkMemory( -1, -1 );
// at this point we should be done with the loading gui so we kill it
delete loadGUI;
loadGUI = NULL;
// capture the current screen and start a wipe
StartWipe( "wipe2Material" );
// we are valid for game draws now
insideExecuteMapChange = false;
mapSpawned = true;
Sys_ClearEvents();
int msec = Sys_Milliseconds() - start;
common->Printf( "%6d msec to load %s\n", msec, currentMapName.c_str() );
//Sys_DumpMemory( false );
// Issue a render at the very end of the load process to update soundTime before the first frame
soundSystem->Render();
}
/*
===============
idCommonLocal::UpdateLevelLoadPacifier
Pumps the session and if multiplayer, displays dialogs during the loading process.
===============
*/
void idCommonLocal::UpdateLevelLoadPacifier() {
autoRenderIconType_t icon = AUTORENDER_DEFAULTICON;
bool autoswapsRunning = renderSystem->AreAutomaticBackgroundSwapsRunning( &icon );
if ( !insideExecuteMapChange && !autoswapsRunning ) {
return;
}
const int sessionUpdateTime = common->IsMultiplayer() ? 16 : 100;
const int time = Sys_Milliseconds();
// Throttle session pumps.
if ( time - lastPacifierSessionTime >= sessionUpdateTime ) {
lastPacifierSessionTime = time;
Sys_GenerateEvents();
session->UpdateSignInManager();
session->Pump();
session->ProcessSnapAckQueue();
}
if ( autoswapsRunning ) {
// If autoswaps are running, only update if a Dialog is shown/dismissed
bool dialogState = Dialog().HasAnyActiveDialog();
if ( lastPacifierDialogState != dialogState ) {
lastPacifierDialogState = dialogState;
renderSystem->EndAutomaticBackgroundSwaps();
if ( dialogState ) {
icon = AUTORENDER_DIALOGICON; // Done this way to handle the rare case of a tip changing at the same time a dialog comes up
for ( int i = 0; i < NumScreenUpdatesToShowDialog; ++i ) {
UpdateScreen( false );
}
}
renderSystem->BeginAutomaticBackgroundSwaps( icon );
}
} else {
// On the PC just update at a constant rate for the Steam overlay
if ( time - lastPacifierGuiTime >= 50 ) {
lastPacifierGuiTime = time;
UpdateScreen( false );
}
}
if ( time >= nextLoadTip && loadGUI != NULL && loadTipList.Num() > 0 && !defaultLoadscreen ) {
if ( autoswapsRunning ) {
renderSystem->EndAutomaticBackgroundSwaps();
}
nextLoadTip = time + LOAD_TIP_CHANGE_INTERVAL;
const int rnd = time % loadTipList.Num();
idStrStatic<20> tipId;
tipId.Format( "#str_loadtip_%d", loadTipList[ rnd ] );
loadTipList.RemoveIndex( rnd );
idSWFTextInstance * txtVal = loadGUI->GetRootObject().GetNestedText( "txtDesc" );
if ( txtVal != NULL ) {
if ( isHellMap ) {
txtVal->SetText( va( "\n%s", idLocalization::GetString( tipId ) ) );
} else {
txtVal->SetText( idLocalization::GetString( tipId ) );
}
txtVal->SetStrokeInfo( true, 1.75f, 0.75f );
}
UpdateScreen( false );
if ( autoswapsRunning ) {
renderSystem->BeginAutomaticBackgroundSwaps( icon );
}
}
}
/*
==============
RenderBumpTriangles
==============
*/
static void RenderBumpTriangles( srfTriangles_t *lowMesh, renderBump_t *rb ) {
int i, j;
RB_SetGL2D();
qglDisable( GL_CULL_FACE );
qglColor3f( 1, 1, 1 );
qglMatrixMode( GL_PROJECTION );
qglLoadIdentity();
qglOrtho( 0, 1, 1, 0, -1, 1 );
qglDisable( GL_BLEND );
qglMatrixMode( GL_MODELVIEW );
qglLoadIdentity();
qglDisable( GL_DEPTH_TEST );
qglClearColor(1,0,0,1);
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
qglColor3f( 1, 1, 1 );
// create smoothed normals for the surface, which might be
// different than the normals at the vertexes if the
// surface uses unsmoothedNormals, which only takes the
// normal from a single triangle. We need properly smoothed
// normals to make sure that the traces always go off normal
// to the true surface.
idVec3 *lowMeshNormals = (idVec3 *)Mem_ClearedAlloc( lowMesh->numVerts * sizeof( *lowMeshNormals ) );
R_DeriveFacePlanes( lowMesh );
R_CreateSilIndexes( lowMesh ); // recreate, merging the mirrored verts back together
const idPlane *planes = lowMesh->facePlanes;
for ( i = 0 ; i < lowMesh->numIndexes ; i += 3, planes++ ) {
for ( j = 0 ; j < 3 ; j++ ) {
int index;
index = lowMesh->silIndexes[i+j];
lowMeshNormals[index] += (*planes).Normal();
}
}
// normalize and replicate from silIndexes to all indexes
for ( i = 0 ; i < lowMesh->numIndexes ; i++ ) {
lowMeshNormals[lowMesh->indexes[i]] = lowMeshNormals[lowMesh->silIndexes[i]];
lowMeshNormals[lowMesh->indexes[i]].Normalize();
}
// rasterize each low poly face
for ( j = 0 ; j < lowMesh->numIndexes ; j+=3 ) {
// pump the event loop so the window can be dragged around
Sys_GenerateEvents();
RasterizeTriangle( lowMesh, lowMeshNormals, j/3, rb );
qglClearColor(1,0,0,1);
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
qglRasterPos2f( 0, 1 );
qglPixelZoom( glConfig.vidWidth / (float)rb->width, glConfig.vidHeight / (float)rb->height );
qglDrawPixels( rb->width, rb->height, GL_RGBA, GL_UNSIGNED_BYTE, rb->localPic );
qglPixelZoom( 1, 1 );
qglFlush();
GLimp_SwapBuffers();
}
Mem_Free( lowMeshNormals );
}
