Inital commitHEADmaster

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>

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new file mode 100644
index 0000000..83332f4
--- /dev/null
+++ b/examples/23.SMeshHandling/SMeshHandling_vc10.vcxproj
@@ -0,0 +1,192 @@
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+    <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>

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+      <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>

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\ No newline at end of file
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new file mode 100644
index 0000000..83332f4
--- /dev/null
+++ b/examples/23.SMeshHandling/SMeshHandling_vc11.vcxproj
@@ -0,0 +1,192 @@
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+				Name="VCPreLinkEventTool"

+			/>

+			<Tool

+				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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+<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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+ <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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