occlusion culling fix, a little reshaping of map rendering for more useful profiler output and dynamic profiler text size

src/defaultsettings.cpp

@@ -46,6 +46,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("keymap_screenshot", "KEY_F12");
 	settings->setDefault("keymap_toggle_profiler", "KEY_F2");
 	settings->setDefault("keymap_toggle_force_fog_off", "KEY_F3");
+	settings->setDefault("keymap_toggle_update_camera", "KEY_F4");
 	// Some (temporary) keys for debugging
 	settings->setDefault("keymap_print_debug_stacks", "KEY_KEY_P");
 

src/game.cpp

@@ -888,11 +888,11 @@ void the_game(
 	//guitext_chat->setBackgroundColor(video::SColor(96,0,0,0));
 	core::list<ChatLine> chat_lines;
 	
-	// Profiler text
+	// Profiler text (size is updated when text is updated)
 	gui::IGUIStaticText *guitext_profiler = guienv->addStaticText(
 			L"<Profiler>",
-			core::rect<s32>(6, 4+(text_height+5)*3, 400,
+			core::rect<s32>(6, 4+(text_height+5)*2, 400,
-			(text_height+5)*3 + text_height*35),
+			(text_height+5)*2 + text_height*35),
 			false, false);
 	guitext_profiler->setBackgroundColor(video::SColor(80,0,0,0));
 	guitext_profiler->setVisible(false);
@@ -951,8 +951,8 @@ void the_game(
 	bool respawn_menu_active = false;
 
 	bool show_profiler = false;
-
 	bool force_fog_off = false;
+	bool disable_camera_update = false;
 
 	/*
 		Main loop
@@ -1188,9 +1188,18 @@ void the_game(
 
 			std::ostringstream os(std::ios_base::binary);
 			g_profiler->print(os);
-			guitext_profiler->setText(narrow_to_wide(os.str()).c_str());
+			std::wstring text = narrow_to_wide(os.str());
+			guitext_profiler->setText(text.c_str());
 
 			g_profiler->clear();
+			
+			s32 w = font->getDimension(text.c_str()).Width;
+			if(w < 400)
+				w = 400;
+			core::rect<s32> rect(6, 4+(text_height+5)*2, 12+w,
+					8+(text_height+5)*2 +
+					font->getDimension(text.c_str()).Height);
+			guitext_profiler->setRelativePosition(rect);
 		}
 
 		/*
@@ -1324,10 +1333,26 @@ void the_game(
 		{
 			show_profiler = !show_profiler;
 			guitext_profiler->setVisible(show_profiler);
+			if(show_profiler)
+				chat_lines.push_back(ChatLine(L"Profiler disabled"));
+			else
+				chat_lines.push_back(ChatLine(L"Profiler enabled"));
 		}
 		else if(input->wasKeyDown(getKeySetting("keymap_toggle_force_fog_off")))
 		{
 			force_fog_off = !force_fog_off;
+			if(force_fog_off)
+				chat_lines.push_back(ChatLine(L"Fog disabled"));
+			else
+				chat_lines.push_back(ChatLine(L"Fog enabled"));
+		}
+		else if(input->wasKeyDown(getKeySetting("keymap_toggle_update_camera")))
+		{
+			disable_camera_update = !disable_camera_update;
+			if(disable_camera_update)
+				chat_lines.push_back(ChatLine(L"Camera update disabled"));
+			else
+				chat_lines.push_back(ChatLine(L"Camera update enabled"));
 		}
 
 		// Item selection with mouse wheel
@@ -1573,11 +1598,10 @@ void the_game(
 		v3f camera_direction = camera.getDirection();
 		f32 camera_fov = camera.getFovMax();
 		
-		if(FIELD_OF_VIEW_TEST)
+		if(!disable_camera_update){
-			client.updateCamera(v3f(0,0,0), v3f(0,0,1), camera_fov);
-		else
 			client.updateCamera(camera_position,
 				camera_direction, camera_fov);
+		}
 
 		//timer2.stop();
 		//TimeTaker //timer3("//timer3");

src/map.cpp

@@ -3620,6 +3620,12 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
 
 	bool is_transparent_pass = pass == scene::ESNRP_TRANSPARENT;
 	
+	std::string prefix;
+	if(pass == scene::ESNRP_SOLID)
+		prefix = "CM: solid: ";
+	else
+		prefix = "CM: transparent: ";
+
 	/*
 		This is called two times per frame, reset on the non-transparent one
 	*/
@@ -3689,27 +3695,19 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
 	// Blocks from which stuff was actually drawn
 	u32 blocks_without_stuff = 0;
 
-	int timecheck_counter = 0;
+	/*
-	core::map<v2s16, MapSector*>::Iterator si;
+		Collect a set of blocks for drawing
-	si = m_sectors.getIterator();
+	*/
-	for(; si.atEnd() == false; si++)
-	{
-		{
-			timecheck_counter++;
-			if(timecheck_counter > 50)
-			{
-				timecheck_counter = 0;
-				int time2 = time(0);
-				if(time2 > time1 + 4)
-				{
-					infostream<<"ClientMap::renderMap(): "
-						"Rendering takes ages, returning."
-						<<std::endl;
-					return;
-				}
-			}
-		}
 	
+	core::map<v3s16, MapBlock*> drawset;
+
+	{
+	ScopeProfiler sp(g_profiler, prefix+"collecting blocks for drawing", SPT_AVG);
+
+	for(core::map<v2s16, MapSector*>::Iterator
+			si = m_sectors.getIterator();
+			si.atEnd() == false; si++)
+	{
 		MapSector *sector = si.getNode()->getValue();
 		v2s16 sp = sector->getPos();
 		
@@ -3726,7 +3724,7 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
 		sector->getBlocks(sectorblocks);
 		
 		/*
-			Draw blocks
+			Loop through blocks in sector
 		*/
 
 		u32 sector_blocks_drawn = 0;
@@ -3753,14 +3751,14 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
 				continue;
 			}
 
-			// Okay, this block will be drawn. Reset usage timer.
-			block->resetUsageTimer();
-			
 			// This is ugly (spherical distance limit?)
 			/*if(m_control.range_all == false &&
 					d - 0.5*BS*MAP_BLOCKSIZE > range)
 				continue;*/
 			
+			// This block is in range. Reset usage timer.
+			block->resetUsageTimer();
+
 			blocks_in_range++;
 			
 #if 1
@@ -3812,11 +3810,8 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
 
 				mesh_expired = false;
 			}
-			
 #endif
-			/*
+
-				Draw the faces of the block
-			*/
 			{
 				JMutexAutoLock lock(block->mesh_mutex);
 
@@ -3832,9 +3827,58 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
 						&& m_control.range_all == false
 						&& d > m_control.wanted_min_range * BS)
 					continue;
+			}
+
+			drawset[block->getPos()] = block;
 			
-				blocks_drawn++;
 			sector_blocks_drawn++;
+			blocks_drawn++;
+
+		} // foreach sectorblocks
+
+		if(sector_blocks_drawn != 0)
+			m_last_drawn_sectors[sp] = true;
+	}
+	} // ScopeProfiler
+	
+	/*
+		Draw the selected MapBlocks
+	*/
+
+	{
+	ScopeProfiler sp(g_profiler, prefix+"drawing blocks", SPT_AVG);
+
+	int timecheck_counter = 0;
+	for(core::map<v3s16, MapBlock*>::Iterator
+			i = drawset.getIterator();
+			i.atEnd() == false; i++)
+	{
+		{
+			timecheck_counter++;
+			if(timecheck_counter > 50)
+			{
+				timecheck_counter = 0;
+				int time2 = time(0);
+				if(time2 > time1 + 4)
+				{
+					infostream<<"ClientMap::renderMap(): "
+						"Rendering takes ages, returning."
+						<<std::endl;
+					return;
+				}
+			}
+		}
+		
+		MapBlock *block = i.getNode()->getValue();
+
+		/*
+			Draw the faces of the block
+		*/
+		{
+			JMutexAutoLock lock(block->mesh_mutex);
+
+			scene::SMesh *mesh = block->mesh;
+			assert(mesh);
 			
 			u32 c = mesh->getMeshBufferCount();
 			bool stuff_actually_drawn = false;
@@ -3868,30 +3912,18 @@ void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
 			else
 				blocks_without_stuff++;
 		}
-		} // foreach sectorblocks
-
-		if(sector_blocks_drawn != 0)
-		{
-			m_last_drawn_sectors[sp] = true;
 	}
-	}
+	} // ScopeProfiler
-	
-	std::string prefix = "CM: ";
 	
 	// Log only on solid pass because values are the same
 	if(pass == scene::ESNRP_SOLID){
-		g_profiler->avg(prefix+"blocks in range", blocks_in_range);
+		g_profiler->avg("CM: blocks in range", blocks_in_range);
 		if(blocks_in_range != 0)
-			g_profiler->avg(prefix+"blocks in range without mesh (frac)",
+			g_profiler->avg("CM: blocks in range without mesh (frac)",
 					(float)blocks_in_range_without_mesh/blocks_in_range);
-		g_profiler->avg(prefix+"blocks drawn", blocks_drawn);
+		g_profiler->avg("CM: blocks drawn", blocks_drawn);
 	}
 	
-	if(pass == scene::ESNRP_SOLID)
-		prefix = "CM: solid: ";
-	else
-		prefix = "CM: transparent: ";
-
 	g_profiler->avg(prefix+"vertices drawn", vertex_count);
 	if(blocks_had_pass_meshbuf != 0)
 		g_profiler->avg(prefix+"meshbuffers per block",

src/utility.cpp

@@ -236,21 +236,21 @@ bool isBlockInSight(v3s16 blockpos_b, v3f camera_pos, v3f camera_dir,
 	
 	// If block is (nearly) touching the camera, don't
 	// bother validating further (that is, render it anyway)
-	if(d > block_max_radius)
+	if(d < block_max_radius)
-	{
+		return true;
+	
 	// Cosine of the angle between the camera direction
 	// and the block direction (camera_dir is an unit vector)
 	f32 cosangle = dforward / d;
 	
 	// Compensate for the size of the block
 	// (as the block has to be shown even if it's a bit off FOV)
-		// This is an estimate.
+	// This is an estimate, plus an arbitary factor
-		cosangle += block_max_radius / dforward;
+	cosangle += block_max_radius / d * 0.5;
 
 	// If block is not in the field of view, skip it
 	if(cosangle < cos(camera_fov / 2))
 		return false;
-	}
 
 	return true;
 }