11 files changed, 1861 insertions, 0 deletions
diff --git a/examples/23.SMeshHandling/Makefile b/examples/23.SMeshHandling/Makefile
new file mode 100644
index 0000000..eab5060
--- /dev/null
+++ b/examples/23.SMeshHandling/Makefile
@@ -0,0 +1,38 @@
+# Makefile for Irrlicht Examples
+# It's usually sufficient to change just the target name and source file list
+# and be sure that CXX is set to a valid compiler
+Target = 23.SMeshHandling
+Sources = main.cpp
+
+# general compiler settings
+CPPFLAGS = -I../../include -I/usr/X11R6/include
+CXXFLAGS = -O3 -ffast-math
+#CXXFLAGS = -g -Wall
+
+#default target is Linux
+all: all_linux
+
+ifeq ($(HOSTTYPE), x86_64)
+LIBSELECT=64
+endif
+
+# target specific settings
+all_linux: LDFLAGS = -L/usr/X11R6/lib$(LIBSELECT) -L../../lib/Linux -lIrrlicht -lGL -lXxf86vm -lXext -lX11 -lXcursor
+all_linux clean_linux: SYSTEM=Linux
+all_win32: LDFLAGS = -L../../lib/Win32-gcc -lIrrlicht -lopengl32 -lm
+all_win32 clean_win32: SYSTEM=Win32-gcc
+all_win32 clean_win32: SUF=.exe
+# name of the binary - only valid for targets which set SYSTEM
+DESTPATH = ../../bin/$(SYSTEM)/$(Target)$(SUF)
+
+all_linux all_win32:
+	$(warning Building...)
+	$(CXX) $(CPPFLAGS) $(CXXFLAGS) $(Sources) -o $(DESTPATH) $(LDFLAGS)
+
+clean: clean_linux clean_win32
+	$(warning Cleaning...)
+
+clean_linux clean_win32:
+	@$(RM) $(DESTPATH)
+
+.PHONY: all all_win32 clean clean_linux clean_win32
diff --git a/examples/23.SMeshHandling/SMeshHandling.cbp b/examples/23.SMeshHandling/SMeshHandling.cbp
new file mode 100644
index 0000000..920efac
--- /dev/null
+++ b/examples/23.SMeshHandling/SMeshHandling.cbp
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocks_project_file>
+	<FileVersion major="1" minor="6" />
+	<Project>
+		<Option title="Irrlicht Example 23 SMeshHandling" />
+		<Option pch_mode="2" />
+		<Option compiler="gcc" />
+		<Build>
+			<Target title="Windows">
+				<Option platforms="Windows;" />
+				<Option output="../../bin/Win32-gcc/SMeshHandling" prefix_auto="0" extension_auto="1" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Linker>
+					<Add directory="../../lib/Win32-gcc" />
+				</Linker>
+			</Target>
+			<Target title="Linux">
+				<Option platforms="Unix;" />
+				<Option output="../../bin/Linux/SMeshHandling" prefix_auto="0" extension_auto="0" />
+				<Option type="1" />
+				<Option compiler="gcc" />
+				<Linker>
+					<Add library="Xxf86vm" />
+					<Add library="X11" />
+					<Add library="GL" />
+					<Add directory="../../lib/Linux" />
+				</Linker>
+			</Target>
+		</Build>
+		<Compiler>
+			<Add directory="../../include" />
+		</Compiler>
+		<Linker>
+			<Add library="Irrlicht" />
+		</Linker>
+		<Unit filename="main.cpp" />
+		<Extensions>
+			<code_completion />
+			<envvars />
+			<debugger />
+		</Extensions>
+	</Project>
+</CodeBlocks_project_file>
diff --git a/examples/23.SMeshHandling/SMeshHandling.dev b/examples/23.SMeshHandling/SMeshHandling.dev
new file mode 100644
index 0000000..94043f3
--- /dev/null
+++ b/examples/23.SMeshHandling/SMeshHandling.dev
@@ -0,0 +1,59 @@
+[Project]
+FileName=example.dev
+Name=Irrlicht Example 23 SMeshHandling
+UnitCount=1
+Type=1
+Ver=1
+ObjFiles=
+Includes=..\..\include
+Libs=
+PrivateResource=
+ResourceIncludes=
+MakeIncludes=
+Compiler=
+CppCompiler=
+Linker=../../lib/Win32-gcc/libIrrlicht.a_@@_
+IsCpp=1
+Icon=
+ExeOutput=../../bin/Win32-gcc
+ObjectOutput=obj
+OverrideOutput=1
+OverrideOutputName=23.SMeshHandling.exe
+HostApplication=
+Folders=
+CommandLine=
+IncludeVersionInfo=0
+SupportXPThemes=0
+CompilerSet=0
+CompilerSettings=0000000000000000000000
+UseCustomMakefile=0
+CustomMakefile=
+
+[Unit1]
+FileName=main.cpp
+CompileCpp=1
+Folder=Projekt1
+Compile=1
+Link=1
+Priority=1000
+OverrideBuildCmd=0
+BuildCmd=
+
+[VersionInfo]
+Major=0
+Minor=1
+Release=1
+Build=1
+LanguageID=1033
+CharsetID=1252
+CompanyName=
+FileVersion=
+FileDescription=Irrlicht Engine example compiled using DevCpp and gcc
+InternalName=
+LegalCopyright=
+LegalTrademarks=
+OriginalFilename=
+ProductName=
+ProductVersion=
+AutoIncBuildNr=0
+
diff --git a/examples/23.SMeshHandling/SMeshHandling.vcproj b/examples/23.SMeshHandling/SMeshHandling.vcproj
new file mode 100644
index 0000000..a63d583
--- /dev/null
+++ b/examples/23.SMeshHandling/SMeshHandling.vcproj
@@ -0,0 +1,132 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="7.10"
+	Name="23.SMeshHandling"
+	ProjectGUID="{6AEC2AA2-C9FF-4B7D-B07A-94A9D34B41D7}"
+	Keyword="Win32Proj">
+	<Platforms>
+		<Platform
+			Name="Win32"/>
+	</Platforms>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="Debug"
+			IntermediateDirectory="Debug"
+			ConfigurationType="1"
+			CharacterSet="2">
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="..\..\include"
+				PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS"
+				MinimalRebuild="TRUE"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="5"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="TRUE"
+				DebugInformationFormat="4"/>
+			<Tool
+				Name="VCCustomBuildTool"/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="..\..\bin\Win32-VisualStudio\23.SMeshHandling.exe"
+				LinkIncremental="1"
+				AdditionalLibraryDirectories="..\..\lib\Win32-visualstudio"
+				GenerateDebugInformation="TRUE"
+				ProgramDatabaseFile="$(OutDir)/SMeshHandling.pdb"
+				SubSystem="1"
+				TargetMachine="1"/>
+			<Tool
+				Name="VCMIDLTool"/>
+			<Tool
+				Name="VCPostBuildEventTool"/>
+			<Tool
+				Name="VCPreBuildEventTool"/>
+			<Tool
+				Name="VCPreLinkEventTool"/>
+			<Tool
+				Name="VCResourceCompilerTool"/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"/>
+			<Tool
+				Name="VCWebDeploymentTool"/>
+			<Tool
+				Name="VCManagedWrapperGeneratorTool"/>
+			<Tool
+				Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="Release"
+			IntermediateDirectory="Release"
+			ConfigurationType="1"
+			CharacterSet="2"
+			WholeProgramOptimization="TRUE">
+			<Tool
+				Name="VCCLCompilerTool"
+				AdditionalOptions="/QIfist /Oa"
+				Optimization="3"
+				GlobalOptimizations="TRUE"
+				InlineFunctionExpansion="2"
+				EnableIntrinsicFunctions="TRUE"
+				FavorSizeOrSpeed="1"
+				OmitFramePointers="TRUE"
+				AdditionalIncludeDirectories="..\..\include"
+				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS"
+				RuntimeLibrary="4"
+				BufferSecurityCheck="FALSE"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				Detect64BitPortabilityProblems="TRUE"
+				DebugInformationFormat="0"
+				CallingConvention="1"/>
+			<Tool
+				Name="VCCustomBuildTool"/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="..\..\bin\Win32-VisualStudio\23.SMeshHandling.exe"
+				LinkIncremental="1"
+				SuppressStartupBanner="TRUE"
+				AdditionalLibraryDirectories="..\..\lib\Win32-visualstudio"
+				GenerateDebugInformation="FALSE"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="1"/>
+			<Tool
+				Name="VCMIDLTool"/>
+			<Tool
+				Name="VCPostBuildEventTool"/>
+			<Tool
+				Name="VCPreBuildEventTool"/>
+			<Tool
+				Name="VCPreLinkEventTool"/>
+			<Tool
+				Name="VCResourceCompilerTool"/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"/>
+			<Tool
+				Name="VCWebDeploymentTool"/>
+			<Tool
+				Name="VCManagedWrapperGeneratorTool"/>
+			<Tool
+				Name="VCAuxiliaryManagedWrapperGeneratorTool"/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<File
+			RelativePath=".\main.cpp">
+		</File>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/examples/23.SMeshHandling/SMeshHandling_vc10.vcxproj b/examples/23.SMeshHandling/SMeshHandling_vc10.vcxproj
new file mode 100644
index 0000000..83332f4
--- /dev/null
+++ b/examples/23.SMeshHandling/SMeshHandling_vc10.vcxproj
@@ -0,0 +1,192 @@
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+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
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+      <Platform>x64</Platform>
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+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>23.SMeshHandling</ProjectName>
+    <ProjectGuid>{6AEC2AA2-C9FF-4B7D-B07A-94A9D34B41D7}</ProjectGuid>
+    <RootNamespace>23.SMeshHandling</RootNamespace>
+    <Keyword>Win32Proj</Keyword>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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+    <ConfigurationType>Application</ConfigurationType>
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+    <PlatformToolset>Windows7.1SDK</PlatformToolset>
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
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+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(VCTargetsPath)Microsoft.CPP.UpgradeFromVC71.props" />
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+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">..\..\bin\Win32-VisualStudio\</OutDir>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">..\..\bin\Win64-VisualStudio\</OutDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</LinkIncremental>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">..\..\bin\Win32-VisualStudio\</OutDir>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\..\bin\Win64-VisualStudio\</OutDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</LinkIncremental>
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|x64'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
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+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>true</MinimalRebuild>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <OutputFile>..\..\bin\Win32-VisualStudio\23.SMeshHandling.exe</OutputFile>
+      <AdditionalLibraryDirectories>..\..\lib\Win32-visualstudio;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <ProgramDatabaseFile>$(OutDir)SMeshHandling.pdb</ProgramDatabaseFile>
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
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+      <PreprocessorDefinitions>WIN32;WIN64;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+    </ClCompile>
+    <Link>
+      <OutputFile>..\..\bin\Win64-VisualStudio\23.SMeshHandling.exe</OutputFile>
+      <AdditionalLibraryDirectories>..\..\lib\Win64-visualstudio;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <ProgramDatabaseFile>$(OutDir)SMeshHandling.pdb</ProgramDatabaseFile>
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+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>
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+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ExceptionHandling>Sync</ExceptionHandling>
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+      <AdditionalLibraryDirectories>..\..\lib\Win32-visualstudio;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
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+    <Link>
+      <OutputFile>..\..\bin\Win64-VisualStudio\23.SMeshHandling.exe</OutputFile>
+      <AdditionalLibraryDirectories>..\..\lib\Win64-visualstudio;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
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+</Project>
+\ No newline at end of file
diff --git a/examples/23.SMeshHandling/SMeshHandling_vc11.vcxproj b/examples/23.SMeshHandling/SMeshHandling_vc11.vcxproj
new file mode 100644
index 0000000..83332f4
--- /dev/null
+++ b/examples/23.SMeshHandling/SMeshHandling_vc11.vcxproj
@@ -0,0 +1,192 @@
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+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectName>23.SMeshHandling</ProjectName>
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+    <ConfigurationType>Application</ConfigurationType>
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+				Name="VCLinkerTool"
+				OutputFile="..\..\bin\Win32-VisualStudio\23.SMeshHandling.exe"
+				LinkIncremental="2"
+				AdditionalLibraryDirectories="..\..\lib\Win32-visualstudio"
+				GenerateDebugInformation="true"
+				ProgramDatabaseFile="$(OutDir)/SMeshHandling.pdb"
+				SubSystem="1"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="Release"
+			IntermediateDirectory="Release"
+			ConfigurationType="1"
+			InheritedPropertySheets="$(VCInstallDir)VCProjectDefaults\UpgradeFromVC71.vsprops"
+			CharacterSet="2"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				EnableIntrinsicFunctions="true"
+				FavorSizeOrSpeed="1"
+				AdditionalIncludeDirectories="..\..\include"
+				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS"
+				ExceptionHandling="1"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				DebugInformationFormat="0"
+				CallingConvention="0"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				OutputFile="..\..\bin\Win32-VisualStudio\23.SMeshHandling.exe"
+				LinkIncremental="1"
+				AdditionalLibraryDirectories="..\..\lib\Win32-visualstudio"
+				GenerateDebugInformation="false"
+				SubSystem="1"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				RandomizedBaseAddress="1"
+				DataExecutionPrevention="0"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<File
+			RelativePath=".\main.cpp"
+			>
+		</File>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>
diff --git a/examples/23.SMeshHandling/main.cpp b/examples/23.SMeshHandling/main.cpp
new file mode 100644
index 0000000..c3c2ccf
--- /dev/null
+++ b/examples/23.SMeshHandling/main.cpp
@@ -0,0 +1,426 @@
+/** Example 023 SMeshBufferHandling
+
+A tutorial by geoff.
+
+In this tutorial we'll learn how to create custom meshes and deal with them
+with Irrlicht. We'll create an interesting heightmap with some lighting effects.
+With keys 1,2,3 you can choose a different mesh layout, which is put into the
+mesh buffers as desired. All positions, normals, etc. are updated accordingly.
+
+Ok, let's start with the headers (I think there's nothing to say about it)
+*/
+
+#include <irrlicht.h>
+#include "driverChoice.h"
+
+#ifdef _MSC_VER
+#pragma comment(lib, "Irrlicht.lib")
+#endif
+
+//Namespaces for the engine
+using namespace irr;
+using namespace video;
+using namespace core;
+using namespace scene;
+using namespace io;
+using namespace gui;
+
+/* This is the type of the functions which work out the colour. */
+typedef SColor colour_func(f32 x, f32 y, f32 z);
+
+/* Here comes a set of functions which can be used for coloring the nodes while
+creating the mesh. */
+
+// Greyscale, based on the height.
+SColor grey(f32, f32, f32 z)
+{
+	u32 n = (u32)(255.f * z);
+	return SColor(255, n, n, n);
+}
+
+// Interpolation between blue and white, with red added in one
+// direction and green in the other.
+SColor yellow(f32 x, f32 y, f32)
+{
+	return SColor(255, 128 + (u32)(127.f * x), 128 + (u32)(127.f * y), 255);
+}
+
+// Pure white.
+SColor white(f32, f32, f32) { return SColor(255, 255, 255, 255); }
+
+/* The type of the functions which generate the heightmap. x and y
+range between -0.5 and 0.5, and s is the scale of the heightmap. */
+
+typedef f32 generate_func(s16 x, s16 y, f32 s);
+
+// An interesting sample function :-)
+f32 eggbox(s16 x, s16 y, f32 s)
+{
+	const f32 r = 4.f*sqrtf((f32)(x*x + y*y))/s;
+	const f32 z = expf(-r * 2) * (cosf(0.2f * x) + cosf(0.2f * y));
+	return 0.25f+0.25f*z;
+}
+
+// A rather dumb sine function :-/
+f32 moresine(s16 x, s16 y, f32 s)
+{
+	const f32 xx=0.3f*(f32)x/s;
+	const f32 yy=12*y/s;
+	const f32 z = sinf(xx*xx+yy)*sinf(xx+yy*yy);
+	return 0.25f + 0.25f * z;
+}
+
+// A simple function
+f32 justexp(s16 x, s16 y, f32 s)
+{
+	const f32 xx=6*x/s;
+	const f32 yy=6*y/s;
+	const f32 z = (xx*xx+yy*yy);
+	return 0.3f*z*cosf(xx*yy);
+}
+
+/* A simple class for representing heightmaps. Most of this should be obvious. */
+
+class HeightMap
+{
+private:
+	const u16 Width;
+	const u16 Height;
+	f32 s;
+	core::array<f32> data;
+public:
+	HeightMap(u16 _w, u16 _h) : Width(_w), Height(_h), s(0.f), data(0)
+	{
+		s = sqrtf((f32)(Width * Width + Height * Height));
+		data.set_used(Width * Height);
+	}
+
+	// Fill the heightmap with values generated from f.
+	void generate(generate_func f)
+	{
+		u32 i=0;
+		for(u16 y = 0; y < Height; ++y)
+			for(u16 x = 0; x < Width; ++x)
+				set(i++, calc(f, x, y));
+	}
+
+	u16 height() const { return Height; }
+	u16 width() const { return Width; }
+
+	f32 calc(generate_func f, u16 x, u16 y) const
+	{
+		const f32 xx = (f32)x - Width*0.5f;
+		const f32 yy = (f32)y - Height*0.5f;
+		return f((u16)xx, (u16)yy, s);
+	}
+
+	// The height at (x, y) is at position y * Width + x.
+
+	void set(u16 x, u16 y, f32 z) { data[y * Width + x] = z; }
+	void set(u32 i, f32 z) { data[i] = z; }
+	f32 get(u16 x, u16 y) const { return data[y * Width + x]; }
+
+	/* The only difficult part. This considers the normal at (x, y) to
+	be the cross product of the vectors between the adjacent points
+	in the horizontal and vertical directions.
+
+	s is a scaling factor, which is necessary if the height units are
+	different from the coordinate units; for example, if your map has
+	heights in metres and the coordinates are in units of a
+	kilometer. */
+
+	vector3df getnormal(u16 x, u16 y, f32 s) const
+	{
+		const f32 zc = get(x, y);
+		f32 zl, zr, zu, zd;
+
+		if (x == 0)
+		{
+			zr = get(x + 1, y);
+			zl = zc + zc - zr;
+		}
+		else if (x == Width - 1)
+		{
+			zl = get(x - 1, y);
+			zr = zc + zc - zl;
+		}
+		else
+		{
+			zr = get(x + 1, y);
+			zl = get(x - 1, y);
+		}
+
+		if (y == 0)
+		{
+			zd = get(x, y + 1);
+			zu = zc + zc - zd;
+		}
+		else if (y == Height - 1)
+		{
+			zu = get(x, y - 1);
+			zd = zc + zc - zu;
+		}
+		else
+		{
+			zd = get(x, y + 1);
+			zu = get(x, y - 1);
+		}
+
+		return vector3df(s * 2 * (zl - zr), 4, s * 2 * (zd - zu)).normalize();
+	}
+};
+
+/* A class which generates a mesh from a heightmap. */
+class TMesh
+{
+private:
+	u16 Width;
+	u16 Height;
+	f32 Scale;
+public:
+	SMesh* Mesh;
+
+	TMesh() : Mesh(0), Width(0), Height(0), Scale(1.f)
+	{
+		Mesh = new SMesh();
+	}
+
+	~TMesh()
+	{
+		Mesh->drop();
+	}
+
+	// Unless the heightmap is small, it won't all fit into a single
+	// SMeshBuffer. This function chops it into pieces and generates a
+	// buffer from each one.
+
+	void init(const HeightMap &hm, f32 scale, colour_func cf, IVideoDriver *driver)
+	{
+		Scale = scale;
+
+		const u32 mp = driver -> getMaximalPrimitiveCount();
+		Width = hm.width();
+		Height = hm.height();
+		
+		const u32 sw = mp / (6 * Height); // the width of each piece
+
+		u32 i=0;
+		for(u32 y0 = 0; y0 < Height; y0 += sw)
+		{
+			u16 y1 = y0 + sw;
+			if (y1 >= Height)
+				y1 = Height - 1; // the last one might be narrower
+			addstrip(hm, cf, y0, y1, i);
+			++i;
+		}
+		if (i<Mesh->getMeshBufferCount())
+		{
+			// clear the rest
+			for (u32 j=i; j<Mesh->getMeshBufferCount(); ++j)
+			{
+				Mesh->getMeshBuffer(j)->drop();
+			}
+			Mesh->MeshBuffers.erase(i,Mesh->getMeshBufferCount()-i);
+		}
+		// set dirty flag to make sure that hardware copies of this
+		// buffer are also updated, see IMesh::setHardwareMappingHint
+		Mesh->setDirty();
+		Mesh->recalculateBoundingBox();
+	}
+
+	// Generate a SMeshBuffer which represents all the vertices and
+	// indices for values of y between y0 and y1, and add it to the
+	// mesh.
+
+	void addstrip(const HeightMap &hm, colour_func cf, u16 y0, u16 y1, u32 bufNum)
+	{
+		SMeshBuffer *buf = 0;
+		if (bufNum<Mesh->getMeshBufferCount())
+		{
+			buf = (SMeshBuffer*)Mesh->getMeshBuffer(bufNum);
+		}
+		else
+		{
+			// create new buffer
+			buf = new SMeshBuffer();
+			Mesh->addMeshBuffer(buf);
+			// to simplify things we drop here but continue using buf
+			buf->drop();
+		}
+		buf->Vertices.set_used((1 + y1 - y0) * Width);
+
+		u32 i=0;
+		for (u16 y = y0; y <= y1; ++y)
+		{
+			for (u16 x = 0; x < Width; ++x)
+			{
+				const f32 z = hm.get(x, y);
+				const f32 xx = (f32)x/(f32)Width;
+				const f32 yy = (f32)y/(f32)Height;
+
+				S3DVertex& v = buf->Vertices[i++];
+				v.Pos.set(x, Scale * z, y);
+				v.Normal.set(hm.getnormal(x, y, Scale));
+				v.Color=cf(xx, yy, z);
+				v.TCoords.set(xx, yy);
+			}
+		}
+
+		buf->Indices.set_used(6 * (Width - 1) * (y1 - y0));
+		i=0;
+		for(u16 y = y0; y < y1; ++y)
+		{
+			for(u16 x = 0; x < Width - 1; ++x)
+			{
+				const u16 n = (y-y0) * Width + x;
+				buf->Indices[i]=n;
+				buf->Indices[++i]=n + Width;
+				buf->Indices[++i]=n + Width + 1;
+				buf->Indices[++i]=n + Width + 1;
+				buf->Indices[++i]=n + 1;
+				buf->Indices[++i]=n;
+				++i;
+			}
+		}
+
+		buf->recalculateBoundingBox();
+	}
+};
+
+/*
+Our event receiver implementation, taken from tutorial 4.
+*/
+class MyEventReceiver : public IEventReceiver
+{
+public:
+	// This is the one method that we have to implement
+	virtual bool OnEvent(const SEvent& event)
+	{
+		// Remember whether each key is down or up
+		if (event.EventType == irr::EET_KEY_INPUT_EVENT)
+			KeyIsDown[event.KeyInput.Key] = event.KeyInput.PressedDown;
+
+		return false;
+	}
+
+	// This is used to check whether a key is being held down
+	virtual bool IsKeyDown(EKEY_CODE keyCode) const
+	{
+		return KeyIsDown[keyCode];
+	}
+
+	MyEventReceiver()
+	{
+		for (u32 i=0; i<KEY_KEY_CODES_COUNT; ++i)
+			KeyIsDown[i] = false;
+	}
+
+private:
+	// We use this array to store the current state of each key
+	bool KeyIsDown[KEY_KEY_CODES_COUNT];
+};
+
+/*
+Much of this is code taken from some of the examples. We merely set
+up a mesh from a heightmap, light it with a moving light, and allow
+the user to navigate around it.
+*/
+
+int main(int argc, char* argv[])
+{
+	// ask user for driver
+	video::E_DRIVER_TYPE driverType=driverChoiceConsole();
+	if (driverType==video::EDT_COUNT)
+		return 1;
+
+	MyEventReceiver receiver;
+	IrrlichtDevice* device = createDevice(driverType,
+			core::dimension2du(800, 600), 32, false, false, false,
+			&receiver);
+
+	if(device == 0)
+		return 1;
+ 
+	IVideoDriver *driver = device->getVideoDriver();
+	ISceneManager *smgr = device->getSceneManager();
+	device->setWindowCaption(L"Irrlicht Example for SMesh usage.");
+
+	/*
+	Create the custom mesh and initialize with a heightmap
+	*/
+	TMesh mesh;
+	HeightMap hm = HeightMap(255, 255);
+	hm.generate(eggbox);
+	mesh.init(hm, 50.f, grey, driver);
+
+	// Add the mesh to the scene graph
+	IMeshSceneNode* meshnode = smgr -> addMeshSceneNode(mesh.Mesh);
+	meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING, false);
+
+	// light is just for nice effects
+	ILightSceneNode *node = smgr->addLightSceneNode(0, vector3df(0,100,0),
+		SColorf(1.0f, 0.6f, 0.7f, 1.0f), 500.0f);
+	if (node)
+	{
+		node->getLightData().Attenuation.set(0.f, 1.f/500.f, 0.f);
+		ISceneNodeAnimator* anim = smgr->createFlyCircleAnimator(vector3df(0,150,0),250.0f);
+		if (anim)
+		{
+			node->addAnimator(anim);
+			anim->drop();
+		}
+	}
+
+	ICameraSceneNode* camera = smgr->addCameraSceneNodeFPS();
+	if (camera)
+	{
+		camera->setPosition(vector3df(-20.f, 150.f, -20.f));
+		camera->setTarget(vector3df(200.f, -80.f, 150.f));
+		camera->setFarValue(20000.0f);
+	}
+
+	/*
+	Just a usual render loop with event handling. The custom mesh is
+	a usual part of the scene graph which gets rendered by drawAll.
+	*/
+	while(device->run())
+	{
+		if(!device->isWindowActive())
+		{
+			device->sleep(100);
+			continue;
+		}
+
+		if(receiver.IsKeyDown(irr::KEY_KEY_W))
+		{
+			meshnode->setMaterialFlag(video::EMF_WIREFRAME, !meshnode->getMaterial(0).Wireframe);
+		}
+		else if(receiver.IsKeyDown(irr::KEY_KEY_1))
+		{
+			hm.generate(eggbox);
+			mesh.init(hm, 50.f, grey, driver);
+		}
+		else if(receiver.IsKeyDown(irr::KEY_KEY_2))
+		{
+			hm.generate(moresine);
+			mesh.init(hm, 50.f, yellow, driver);
+		}
+		else if(receiver.IsKeyDown(irr::KEY_KEY_3))
+		{
+			hm.generate(justexp);
+			mesh.init(hm, 50.f, yellow, driver);
+		}
+
+		driver->beginScene(true, true, SColor(0xff000000));
+		smgr->drawAll();
+		driver->endScene();
+	}
+
+	device->drop();
+
+	return 0;
+}
+
+/*
+That's it! Just compile and play around with the program.
+**/
diff --git a/examples/23.SMeshHandling/tutorial.html b/examples/23.SMeshHandling/tutorial.html
new file mode 100644
index 0000000..b5ef8e8
--- /dev/null
+++ b/examples/23.SMeshHandling/tutorial.html
@@ -0,0 +1,209 @@
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+<html>
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+<meta name="viewport" content="width=device-width, initial-scale=1"/>
+<title>Tutorial 23: SMeshBufferHandling</title>
+<html xmlns="http://www.w3.org/1999/xhtml">
+<!-- Wanted to avoid copying .css to each folder, so copied default .css from doxyen in here, kicked out most stuff we don't need for examples and modified some a little bit. 
+     Target was having a single html in each example folder which is created from the main.cpp files and needs no files besides some images below media folder.
+     Feel free to improve :)
+	 -->
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+<div class="title">Tutorial 23: SMeshBufferHandling </div>  </div>
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+<div class="contents">
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+<img src="../../media/023shot.jpg" alt="023shot.jpg"/>
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+ <p>A tutorial by geoff.</p>
+<p>In this tutorial we'll learn how to create custom meshes and deal with them with Irrlicht. We'll create an interesting heightmap with some lighting effects. With keys 1,2,3 you can choose a different mesh layout, which is put into the mesh buffers as desired. All positions, normals, etc. are updated accordingly.</p>
+<p>Ok, let's start with the headers (I think there's nothing to say about it) </p><div class="fragment"><div class="line"><span class="preprocessor">#include &lt;irrlicht.h&gt;</span></div><div class="line"><span class="preprocessor">#include &quot;driverChoice.h&quot;</span></div><div class="line"></div><div class="line"><span class="preprocessor">#ifdef _MSC_VER</span></div><div class="line"><span class="preprocessor">#pragma comment(lib, &quot;Irrlicht.lib&quot;)</span></div><div class="line"><span class="preprocessor">#endif</span></div><div class="line"></div><div class="line"><span class="comment">//Namespaces for the engine</span></div><div class="line"><span class="keyword">using namespace </span>irr;</div><div class="line"><span class="keyword">using namespace </span>video;</div><div class="line"><span class="keyword">using namespace </span>core;</div><div class="line"><span class="keyword">using namespace </span>scene;</div><div class="line"><span class="keyword">using namespace </span>io;</div><div class="line"><span class="keyword">using namespace </span>gui;</div></div><!-- fragment --><p> This is the type of the functions which work out the colour.</p><div class="fragment"><div class="line"><span class="keyword">typedef</span> SColor colour_func(f32 x, f32 y, f32 z);</div></div><!-- fragment --><p> Here comes a set of functions which can be used for coloring the nodes while creating the mesh.</p><div class="fragment"><div class="line"><span class="comment">// Greyscale, based on the height.</span></div><div class="line">SColor grey(f32, f32, f32 z)</div><div class="line">{</div><div class="line">    u32 n = (u32)(255.f * z);</div><div class="line">    <span class="keywordflow">return</span> SColor(255, n, n, n);</div><div class="line">}</div><div class="line"></div><div class="line"><span class="comment">// Interpolation between blue and white, with red added in one</span></div><div class="line"><span class="comment">// direction and green in the other.</span></div><div class="line">SColor yellow(f32 x, f32 y, f32)</div><div class="line">{</div><div class="line">    <span class="keywordflow">return</span> SColor(255, 128 + (u32)(127.f * x), 128 + (u32)(127.f * y), 255);</div><div class="line">}</div><div class="line"></div><div class="line"><span class="comment">// Pure white.</span></div><div class="line">SColor white(f32, f32, f32) { <span class="keywordflow">return</span> SColor(255, 255, 255, 255); }</div></div><!-- fragment --><p> The type of the functions which generate the heightmap. x and y range between -0.5 and 0.5, and s is the scale of the heightmap.</p><div class="fragment"><div class="line"><span class="keyword">typedef</span> f32 generate_func(s16 x, s16 y, f32 s);</div><div class="line"></div><div class="line"><span class="comment">// An interesting sample function :-)</span></div><div class="line">f32 eggbox(s16 x, s16 y, f32 s)</div><div class="line">{</div><div class="line">    <span class="keyword">const</span> f32 r = 4.f*sqrtf((f32)(x*x + y*y))/s;</div><div class="line">    <span class="keyword">const</span> f32 z = expf(-r * 2) * (cosf(0.2f * x) + cosf(0.2f * y));</div><div class="line">    <span class="keywordflow">return</span> 0.25f+0.25f*z;</div><div class="line">}</div><div class="line"></div><div class="line"><span class="comment">// A rather dumb sine function :-/</span></div><div class="line">f32 moresine(s16 x, s16 y, f32 s)</div><div class="line">{</div><div class="line">    <span class="keyword">const</span> f32 xx=0.3f*(f32)x/s;</div><div class="line">    <span class="keyword">const</span> f32 yy=12*y/s;</div><div class="line">    <span class="keyword">const</span> f32 z = sinf(xx*xx+yy)*sinf(xx+yy*yy);</div><div class="line">    <span class="keywordflow">return</span> 0.25f + 0.25f * z;</div><div class="line">}</div><div class="line"></div><div class="line"><span class="comment">// A simple function</span></div><div class="line">f32 justexp(s16 x, s16 y, f32 s)</div><div class="line">{</div><div class="line">    <span class="keyword">const</span> f32 xx=6*x/s;</div><div class="line">    <span class="keyword">const</span> f32 yy=6*y/s;</div><div class="line">    <span class="keyword">const</span> f32 z = (xx*xx+yy*yy);</div><div class="line">    <span class="keywordflow">return</span> 0.3f*z*cosf(xx*yy);</div><div class="line">}</div></div><!-- fragment --><p> A simple class for representing heightmaps. Most of this should be obvious.</p><div class="fragment"><div class="line"><span class="keyword">class </span>HeightMap</div><div class="line">{</div><div class="line"><span class="keyword">private</span>:</div><div class="line">    <span class="keyword">const</span> u16 Width;</div><div class="line">    <span class="keyword">const</span> u16 Height;</div><div class="line">    f32 s;</div><div class="line">    core::array&lt;f32&gt; data;</div><div class="line"><span class="keyword">public</span>:</div><div class="line">    HeightMap(u16 _w, u16 _h) : Width(_w), Height(_h), s(0.f), data(0)</div><div class="line">    {</div><div class="line">        s = sqrtf((f32)(Width * Width + Height * Height));</div><div class="line">        data.set_used(Width * Height);</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="comment">// Fill the heightmap with values generated from f.</span></div><div class="line">    <span class="keywordtype">void</span> generate(generate_func f)</div><div class="line">    {</div><div class="line">        u32 i=0;</div><div class="line">        <span class="keywordflow">for</span>(u16 y = 0; y &lt; Height; ++y)</div><div class="line">            <span class="keywordflow">for</span>(u16 x = 0; x &lt; Width; ++x)</div><div class="line">                <span class="keyword">set</span>(i++, calc(f, x, y));</div><div class="line">    }</div><div class="line"></div><div class="line">    u16 height()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> Height; }</div><div class="line">    u16 width()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> Width; }</div><div class="line"></div><div class="line">    f32 calc(generate_func f, u16 x, u16 y)<span class="keyword"> const</span></div><div class="line"><span class="keyword">    </span>{</div><div class="line">        <span class="keyword">const</span> f32 xx = (f32)x - Width*0.5f;</div><div class="line">        <span class="keyword">const</span> f32 yy = (f32)y - Height*0.5f;</div><div class="line">        <span class="keywordflow">return</span> f((u16)xx, (u16)yy, s);</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="comment">// The height at (x, y) is at position y * Width + x.</span></div><div class="line"></div><div class="line">    <span class="keywordtype">void</span> <span class="keyword">set</span>(u16 x, u16 y, f32 z) { data[y * Width + x] = z; }</div><div class="line">    <span class="keywordtype">void</span> <span class="keyword">set</span>(u32 i, f32 z) { data[i] = z; }</div><div class="line">    f32 <span class="keyword">get</span>(u16 x, u16 y) <span class="keyword">const</span> { <span class="keywordflow">return</span> data[y * Width + x]; }</div></div><!-- fragment --><p> The only difficult part. This considers the normal at (x, y) to be the cross product of the vectors between the adjacent points in the horizontal and vertical directions.</p>
+<p>s is a scaling factor, which is necessary if the height units are different from the coordinate units; for example, if your map has heights in metres and the coordinates are in units of a kilometer.</p><div class="fragment"><div class="line">    vector3df getnormal(u16 x, u16 y, f32 s)<span class="keyword"> const</span></div><div class="line"><span class="keyword">    </span>{</div><div class="line">        <span class="keyword">const</span> f32 zc = <span class="keyword">get</span>(x, y);</div><div class="line">        f32 zl, zr, zu, zd;</div><div class="line"></div><div class="line">        <span class="keywordflow">if</span> (x == 0)</div><div class="line">        {</div><div class="line">            zr = <span class="keyword">get</span>(x + 1, y);</div><div class="line">            zl = zc + zc - zr;</div><div class="line">        }</div><div class="line">        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (x == Width - 1)</div><div class="line">        {</div><div class="line">            zl = <span class="keyword">get</span>(x - 1, y);</div><div class="line">            zr = zc + zc - zl;</div><div class="line">        }</div><div class="line">        <span class="keywordflow">else</span></div><div class="line">        {</div><div class="line">            zr = <span class="keyword">get</span>(x + 1, y);</div><div class="line">            zl = <span class="keyword">get</span>(x - 1, y);</div><div class="line">        }</div><div class="line"></div><div class="line">        <span class="keywordflow">if</span> (y == 0)</div><div class="line">        {</div><div class="line">            zd = <span class="keyword">get</span>(x, y + 1);</div><div class="line">            zu = zc + zc - zd;</div><div class="line">        }</div><div class="line">        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (y == Height - 1)</div><div class="line">        {</div><div class="line">            zu = <span class="keyword">get</span>(x, y - 1);</div><div class="line">            zd = zc + zc - zu;</div><div class="line">        }</div><div class="line">        <span class="keywordflow">else</span></div><div class="line">        {</div><div class="line">            zd = <span class="keyword">get</span>(x, y + 1);</div><div class="line">            zu = <span class="keyword">get</span>(x, y - 1);</div><div class="line">        }</div><div class="line"></div><div class="line">        <span class="keywordflow">return</span> vector3df(s * 2 * (zl - zr), 4, s * 2 * (zd - zu)).normalize();</div><div class="line">    }</div><div class="line">};</div></div><!-- fragment --><p> A class which generates a mesh from a heightmap.</p><div class="fragment"><div class="line"><span class="keyword">class </span>TMesh</div><div class="line">{</div><div class="line"><span class="keyword">private</span>:</div><div class="line">    u16 Width;</div><div class="line">    u16 Height;</div><div class="line">    f32 Scale;</div><div class="line"><span class="keyword">public</span>:</div><div class="line">    SMesh* Mesh;</div><div class="line"></div><div class="line">    TMesh() : Mesh(0), Width(0), Height(0), Scale(1.f)</div><div class="line">    {</div><div class="line">        Mesh = <span class="keyword">new</span> SMesh();</div><div class="line">    }</div><div class="line"></div><div class="line">    ~TMesh()</div><div class="line">    {</div><div class="line">        Mesh-&gt;drop();</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="comment">// Unless the heightmap is small, it won&#39;t all fit into a single</span></div><div class="line">    <span class="comment">// SMeshBuffer. This function chops it into pieces and generates a</span></div><div class="line">    <span class="comment">// buffer from each one.</span></div><div class="line"></div><div class="line">    <span class="keywordtype">void</span> init(<span class="keyword">const</span> HeightMap &amp;hm, f32 scale, colour_func cf, IVideoDriver *driver)</div><div class="line">    {</div><div class="line">        Scale = scale;</div><div class="line"></div><div class="line">        <span class="keyword">const</span> u32 mp = driver -&gt; getMaximalPrimitiveCount();</div><div class="line">        Width = hm.width();</div><div class="line">        Height = hm.height();</div><div class="line">        </div><div class="line">        <span class="keyword">const</span> u32 sw = mp / (6 * Height); <span class="comment">// the width of each piece</span></div><div class="line"></div><div class="line">        u32 i=0;</div><div class="line">        <span class="keywordflow">for</span>(u32 y0 = 0; y0 &lt; Height; y0 += sw)</div><div class="line">        {</div><div class="line">            u16 y1 = y0 + sw;</div><div class="line">            <span class="keywordflow">if</span> (y1 &gt;= Height)</div><div class="line">                y1 = Height - 1; <span class="comment">// the last one might be narrower</span></div><div class="line">            addstrip(hm, cf, y0, y1, i);</div><div class="line">            ++i;</div><div class="line">        }</div><div class="line">        <span class="keywordflow">if</span> (i&lt;Mesh-&gt;getMeshBufferCount())</div><div class="line">        {</div><div class="line">            <span class="comment">// clear the rest</span></div><div class="line">            <span class="keywordflow">for</span> (u32 j=i; j&lt;Mesh-&gt;getMeshBufferCount(); ++j)</div><div class="line">            {</div><div class="line">                Mesh-&gt;getMeshBuffer(j)-&gt;drop();</div><div class="line">            }</div><div class="line">            Mesh-&gt;MeshBuffers.erase(i,Mesh-&gt;getMeshBufferCount()-i);</div><div class="line">        }</div><div class="line">        <span class="comment">// set dirty flag to make sure that hardware copies of this</span></div><div class="line">        <span class="comment">// buffer are also updated, see IMesh::setHardwareMappingHint</span></div><div class="line">        Mesh-&gt;setDirty();</div><div class="line">        Mesh-&gt;recalculateBoundingBox();</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="comment">// Generate a SMeshBuffer which represents all the vertices and</span></div><div class="line">    <span class="comment">// indices for values of y between y0 and y1, and add it to the</span></div><div class="line">    <span class="comment">// mesh.</span></div><div class="line"></div><div class="line">    <span class="keywordtype">void</span> addstrip(<span class="keyword">const</span> HeightMap &amp;hm, colour_func cf, u16 y0, u16 y1, u32 bufNum)</div><div class="line">    {</div><div class="line">        SMeshBuffer *buf = 0;</div><div class="line">        <span class="keywordflow">if</span> (bufNum&lt;Mesh-&gt;getMeshBufferCount())</div><div class="line">        {</div><div class="line">            buf = (SMeshBuffer*)Mesh-&gt;getMeshBuffer(bufNum);</div><div class="line">        }</div><div class="line">        <span class="keywordflow">else</span></div><div class="line">        {</div><div class="line">            <span class="comment">// create new buffer</span></div><div class="line">            buf = <span class="keyword">new</span> SMeshBuffer();</div><div class="line">            Mesh-&gt;addMeshBuffer(buf);</div><div class="line">            <span class="comment">// to simplify things we drop here but continue using buf</span></div><div class="line">            buf-&gt;drop();</div><div class="line">        }</div><div class="line">        buf-&gt;Vertices.set_used((1 + y1 - y0) * Width);</div><div class="line"></div><div class="line">        u32 i=0;</div><div class="line">        <span class="keywordflow">for</span> (u16 y = y0; y &lt;= y1; ++y)</div><div class="line">        {</div><div class="line">            <span class="keywordflow">for</span> (u16 x = 0; x &lt; Width; ++x)</div><div class="line">            {</div><div class="line">                <span class="keyword">const</span> f32 z = hm.get(x, y);</div><div class="line">                <span class="keyword">const</span> f32 xx = (f32)x/(f32)Width;</div><div class="line">                <span class="keyword">const</span> f32 yy = (f32)y/(f32)Height;</div><div class="line"></div><div class="line">                S3DVertex&amp; v = buf-&gt;Vertices[i++];</div><div class="line">                v.Pos.set(x, Scale * z, y);</div><div class="line">                v.Normal.set(hm.getnormal(x, y, Scale));</div><div class="line">                v.Color=cf(xx, yy, z);</div><div class="line">                v.TCoords.set(xx, yy);</div><div class="line">            }</div><div class="line">        }</div><div class="line"></div><div class="line">        buf-&gt;Indices.set_used(6 * (Width - 1) * (y1 - y0));</div><div class="line">        i=0;</div><div class="line">        <span class="keywordflow">for</span>(u16 y = y0; y &lt; y1; ++y)</div><div class="line">        {</div><div class="line">            <span class="keywordflow">for</span>(u16 x = 0; x &lt; Width - 1; ++x)</div><div class="line">            {</div><div class="line">                <span class="keyword">const</span> u16 n = (y-y0) * Width + x;</div><div class="line">                buf-&gt;Indices[i]=n;</div><div class="line">                buf-&gt;Indices[++i]=n + Width;</div><div class="line">                buf-&gt;Indices[++i]=n + Width + 1;</div><div class="line">                buf-&gt;Indices[++i]=n + Width + 1;</div><div class="line">                buf-&gt;Indices[++i]=n + 1;</div><div class="line">                buf-&gt;Indices[++i]=n;</div><div class="line">                ++i;</div><div class="line">            }</div><div class="line">        }</div><div class="line"></div><div class="line">        buf-&gt;recalculateBoundingBox();</div><div class="line">    }</div><div class="line">};</div></div><!-- fragment --><p> Our event receiver implementation, taken from tutorial 4. </p><div class="fragment"><div class="line"><span class="keyword">class </span>MyEventReceiver : <span class="keyword">public</span> IEventReceiver</div><div class="line">{</div><div class="line"><span class="keyword">public</span>:</div><div class="line">    <span class="comment">// This is the one method that we have to implement</span></div><div class="line">    <span class="keyword">virtual</span> <span class="keywordtype">bool</span> OnEvent(<span class="keyword">const</span> SEvent&amp; event)</div><div class="line">    {</div><div class="line">        <span class="comment">// Remember whether each key is down or up</span></div><div class="line">        <span class="keywordflow">if</span> (event.EventType == irr::EET_KEY_INPUT_EVENT)</div><div class="line">            KeyIsDown[<span class="keyword">event</span>.KeyInput.Key] = <span class="keyword">event</span>.KeyInput.PressedDown;</div><div class="line"></div><div class="line">        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line">    }</div><div class="line"></div><div class="line">    <span class="comment">// This is used to check whether a key is being held down</span></div><div class="line">    <span class="keyword">virtual</span> <span class="keywordtype">bool</span> IsKeyDown(EKEY_CODE keyCode)<span class="keyword"> const</span></div><div class="line"><span class="keyword">    </span>{</div><div class="line">        <span class="keywordflow">return</span> KeyIsDown[keyCode];</div><div class="line">    }</div><div class="line"></div><div class="line">    MyEventReceiver()</div><div class="line">    {</div><div class="line">        <span class="keywordflow">for</span> (u32 i=0; i&lt;KEY_KEY_CODES_COUNT; ++i)</div><div class="line">            KeyIsDown[i] = <span class="keyword">false</span>;</div><div class="line">    }</div><div class="line"></div><div class="line"><span class="keyword">private</span>:</div><div class="line">    <span class="comment">// We use this array to store the current state of each key</span></div><div class="line">    <span class="keywordtype">bool</span> KeyIsDown[KEY_KEY_CODES_COUNT];</div><div class="line">};</div></div><!-- fragment --><p> Much of this is code taken from some of the examples. We merely set up a mesh from a heightmap, light it with a moving light, and allow the user to navigate around it. </p><div class="fragment"><div class="line"><span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span>* argv[])</div><div class="line">{</div><div class="line">    <span class="comment">// ask user for driver</span></div><div class="line">    video::E_DRIVER_TYPE driverType=driverChoiceConsole();</div><div class="line">    <span class="keywordflow">if</span> (driverType==video::EDT_COUNT)</div><div class="line">        <span class="keywordflow">return</span> 1;</div><div class="line"></div><div class="line">    MyEventReceiver receiver;</div><div class="line">    IrrlichtDevice* device = createDevice(driverType,</div><div class="line">            core::dimension2du(800, 600), 32, <span class="keyword">false</span>, <span class="keyword">false</span>, <span class="keyword">false</span>,</div><div class="line">            &amp;receiver);</div><div class="line"></div><div class="line">    <span class="keywordflow">if</span>(device == 0)</div><div class="line">        <span class="keywordflow">return</span> 1;</div><div class="line"> </div><div class="line">    IVideoDriver *driver = device-&gt;getVideoDriver();</div><div class="line">    ISceneManager *smgr = device-&gt;getSceneManager();</div><div class="line">    device-&gt;setWindowCaption(L<span class="stringliteral">&quot;Irrlicht Example for SMesh usage.&quot;</span>);</div></div><!-- fragment --><p> Create the custom mesh and initialize with a heightmap </p><div class="fragment"><div class="line">TMesh mesh;</div><div class="line">HeightMap hm = HeightMap(255, 255);</div><div class="line">hm.generate(eggbox);</div><div class="line">mesh.init(hm, 50.f, grey, driver);</div><div class="line"></div><div class="line"><span class="comment">// Add the mesh to the scene graph</span></div><div class="line">IMeshSceneNode* meshnode = smgr -&gt; addMeshSceneNode(mesh.Mesh);</div><div class="line">meshnode-&gt;setMaterialFlag(video::EMF_BACK_FACE_CULLING, <span class="keyword">false</span>);</div><div class="line"></div><div class="line"><span class="comment">// light is just for nice effects</span></div><div class="line">ILightSceneNode *node = smgr-&gt;addLightSceneNode(0, vector3df(0,100,0),</div><div class="line">    SColorf(1.0f, 0.6f, 0.7f, 1.0f), 500.0f);</div><div class="line"><span class="keywordflow">if</span> (node)</div><div class="line">{</div><div class="line">    node-&gt;getLightData().Attenuation.set(0.f, 1.f/500.f, 0.f);</div><div class="line">    ISceneNodeAnimator* anim = smgr-&gt;createFlyCircleAnimator(vector3df(0,150,0),250.0f);</div><div class="line">    <span class="keywordflow">if</span> (anim)</div><div class="line">    {</div><div class="line">        node-&gt;addAnimator(anim);</div><div class="line">        anim-&gt;drop();</div><div class="line">    }</div><div class="line">}</div><div class="line"></div><div class="line">ICameraSceneNode* camera = smgr-&gt;addCameraSceneNodeFPS();</div><div class="line"><span class="keywordflow">if</span> (camera)</div><div class="line">{</div><div class="line">    camera-&gt;setPosition(vector3df(-20.f, 150.f, -20.f));</div><div class="line">    camera-&gt;setTarget(vector3df(200.f, -80.f, 150.f));</div><div class="line">    camera-&gt;setFarValue(20000.0f);</div><div class="line">}</div></div><!-- fragment --><p> Just a usual render loop with event handling. The custom mesh is a usual part of the scene graph which gets rendered by drawAll. </p><div class="fragment"><div class="line">    <span class="keywordflow">while</span>(device-&gt;run())</div><div class="line">    {</div><div class="line">        <span class="keywordflow">if</span>(!device-&gt;isWindowActive())</div><div class="line">        {</div><div class="line">            device-&gt;sleep(100);</div><div class="line">            <span class="keywordflow">continue</span>;</div><div class="line">        }</div><div class="line"></div><div class="line">        <span class="keywordflow">if</span>(receiver.IsKeyDown(irr::KEY_KEY_W))</div><div class="line">        {</div><div class="line">            meshnode-&gt;setMaterialFlag(video::EMF_WIREFRAME, !meshnode-&gt;getMaterial(0).Wireframe);</div><div class="line">        }</div><div class="line">        <span class="keywordflow">else</span> <span class="keywordflow">if</span>(receiver.IsKeyDown(irr::KEY_KEY_1))</div><div class="line">        {</div><div class="line">            hm.generate(eggbox);</div><div class="line">            mesh.init(hm, 50.f, grey, driver);</div><div class="line">        }</div><div class="line">        <span class="keywordflow">else</span> <span class="keywordflow">if</span>(receiver.IsKeyDown(irr::KEY_KEY_2))</div><div class="line">        {</div><div class="line">            hm.generate(moresine);</div><div class="line">            mesh.init(hm, 50.f, yellow, driver);</div><div class="line">        }</div><div class="line">        <span class="keywordflow">else</span> <span class="keywordflow">if</span>(receiver.IsKeyDown(irr::KEY_KEY_3))</div><div class="line">        {</div><div class="line">            hm.generate(justexp);</div><div class="line">            mesh.init(hm, 50.f, yellow, driver);</div><div class="line">        }</div><div class="line"></div><div class="line">        driver-&gt;beginScene(<span class="keyword">true</span>, <span class="keyword">true</span>, SColor(0xff000000));</div><div class="line">        smgr-&gt;drawAll();</div><div class="line">        driver-&gt;endScene();</div><div class="line">    }</div><div class="line"></div><div class="line">    device-&gt;drop();</div><div class="line"></div><div class="line">    <span class="keywordflow">return</span> 0;</div><div class="line">}</div></div><!-- fragment --><p> That's it! Just compile and play around with the program. </p>
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