/// <summary>
/// </summary>
protected static ushort GetIndexDescending(float value, LodValueList materialLodValueList)
{
ushort index = 0;
for (var i = 0; i < materialLodValueList.Count; i++, index++)
{
if (materialLodValueList[i] < value)
{
return((ushort)(index - 1));
}
}
return((ushort)(materialLodValueList.Count - 1));
}
public Region(StaticGeometry parent, string name, SceneManager mgr, UInt32 regionID, Vector3 center)
: base(name)
{
MovableType = "StaticGeometry";
this.parent = parent;
this.sceneMgr = mgr;
this.regionID = regionID;
this.center = center;
this.queuedSubMeshes = new List <QueuedSubMesh>();
this.lodValues = new LodValueList();
this.aabb = new AxisAlignedBox();
this.lodBucketList = new List <LODBucket>();
this.shadowRenderables = new ShadowRenderableList();
}
public void GetIndexDescendingTest()
{
var materialLodUsageList = new LodValueList()
{
new Real(3.0f), new Real(2.0f), new Real(1.0f), new Real(0.0f)
};
var lodStrategy = new LodStategyDescending();
for (int expected = 0; expected < materialLodUsageList.Count; expected++)
{
int actual = lodStrategy.GetIndex(3.0f - expected, materialLodUsageList);
Assert.AreEqual(expected, actual);
}
}
/// <summary>
/// Implementation of isSorted suitable for descending values.
/// </summary>
/// <param name="values"></param>
/// <returns></returns>
protected static bool IsSortedDescending(LodValueList values)
{
for (var i = 0; i < values.Count; i++)
{
float prev = values[i];
if (i + 1 < values.Count)
{
if (values[i + 1] > prev)
{
return(false);
}
}
}
return(true);
}
public void GenerateLodLevels( LodValueList lodValues, ProgressiveMesh.VertexReductionQuota reductionMethod,
Real reductionValue )
{
RemoveLodLevels();
LogManager.Instance.Write( "Generating {0} lower LODs for mesh {1}.", lodValues.Count, Name );
foreach ( var subMesh in this._subMeshList )
{
// check if triangles are present
if ( subMesh.IndexData.indexCount > 0 )
{
// Set up data for reduction
var vertexData = subMesh.useSharedVertices ? this._sharedVertexData : subMesh.vertexData;
var pm = new ProgressiveMesh( vertexData, subMesh.indexData );
pm.Build( (ushort)lodValues.Count, subMesh.lodFaceList, reductionMethod, reductionValue );
}
else
{
// create empty index data for each lod
for ( var i = 0; i < lodValues.Count; ++i )
{
subMesh.LodFaceList.Add( new IndexData() );
}
}
}
// Iterate over the lods and record usage
foreach ( var value in lodValues )
{
// Record usage
var lod = new MeshLodUsage();
lod.UserValue = value;
lod.Value = this._lodStrategy.TransformUserValue( value );
lod.EdgeData = null;
lod.ManualMesh = null;
this.meshLodUsageList.Add( lod );
}
}
/// <summary>
///
/// </summary>
/// <param name="terrain"></param>
/// <returns></returns>
public override Material Generate( Terrain terrain )
{
// re-use old material if exists
Material mat = terrain._Material;
if ( mat == null )
{
MaterialManager matMgr = MaterialManager.Instance;
// it's important that the names are deterministic for a given terrain, so
// use the terrain pointer as an ID+
string matName = terrain.MaterialName;
mat = (Material)matMgr.GetByName( matName );
if ( mat == null )
{
mat = (Material)matMgr.Create( matName, ResourceGroupManager.DefaultResourceGroupName );
}
}
// clear everything
mat.RemoveAllTechniques();
AddTechnique( mat, terrain, TechniqueType.HighLod );
//LOD
if ( this.mCompositeMapEnabled )
{
AddTechnique( mat, terrain, TechniqueType.LowLod );
var lodValues = new LodValueList();
lodValues.Add( 3000 ); //TerrainGlobalOptions.CompositeMapDistance);
mat.SetLodLevels( lodValues );
Technique lowLodTechnique = mat.GetTechnique( 1 );
lowLodTechnique.LodIndex = 1;
}
UpdateParams( mat, terrain );
//mat.Compile(true);
return mat;
}
public override bool IsSorted(LodValueList values)
{
// Check if values are sorted descending
return(IsSortedDescending(values));
}
public override bool IsSorted(LodValueList values)
{
return(IsSortedAscending(values));
}
public Region( StaticGeometry parent, string name, SceneManager mgr, UInt32 regionID, Vector3 center )
: base( name )
{
MovableType = "StaticGeometry";
this.parent = parent;
this.sceneMgr = mgr;
this.regionID = regionID;
this.center = center;
this.queuedSubMeshes = new List<QueuedSubMesh>();
this.lodValues = new LodValueList();
this.aabb = new AxisAlignedBox();
this.lodBucketList = new List<LODBucket>();
this.shadowRenderables = new ShadowRenderableList();
}
public abstract bool IsSorted(LodValueList values);
public override ushort GetIndex(Real value, LodValueList materialLodValueList)
{
return(GetIndexAscending(value, materialLodValueList));
}
protected static bool ParseLodDistances( string parameters, MaterialScriptContext context )
{
context.material.LodStrategy = LodStrategyManager.Instance.GetStrategy( DistanceLodStrategy.StrategyName );
string[] values = parameters.Split( new char[] { ' ', '\t' } );
LodValueList lodDistances = new LodValueList();
for ( int i = 0; i < values.Length; i++ )
{
lodDistances.Add( StringConverter.ParseFloat( values[ i ] ) );
}
context.material.SetLodLevels( lodDistances );
return false;
}
public override ushort GetIndex(Real value, LodValueList materialLodValueList)
{
// Values are descending
return(GetIndexDescending(value, materialLodValueList));
}
/// <see cref="Translator.Translate"/>
public override void Translate(ScriptCompiler compiler, AbstractNode node)
{
var obj = (ObjectAbstractNode)node;
if (obj != null)
{
if (string.IsNullOrEmpty(obj.Name))
{
compiler.AddError(CompileErrorCode.ObjectNameExpected, obj.File, obj.Line);
}
}
else
{
compiler.AddError(CompileErrorCode.ObjectNameExpected, node.File, node.Line);
return;
}
// Create a material with the given name
object mat;
ScriptCompilerEvent evt = new CreateMaterialScriptCompilerEvent(node.File, obj.Name, compiler.ResourceGroup);
var processed = compiler._fireEvent(ref evt, out mat);
if (!processed)
{
//TODO
// The original translated implementation of this code block was simply the following:
// _material = (Material)MaterialManager.Instance.Create( obj.Name, compiler.ResourceGroup );
// but sometimes it generates an exception due to a duplicate resource.
// In order to avoid the above mentioned exception, the implementation was changed, but
// it need to be checked when ResourceManager._add will be updated to the latest version
var checkForExistingMat = (Material)MaterialManager.Instance.GetByName(obj.Name);
if (checkForExistingMat == null)
{
this._material = (Material)MaterialManager.Instance.Create(obj.Name, compiler.ResourceGroup);
}
else
{
this._material = checkForExistingMat;
}
}
else
{
this._material = (Material)mat;
if (this._material == null)
{
compiler.AddError(CompileErrorCode.ObjectAllocationError, obj.File, obj.Line,
"failed to find or create material \"" + obj.Name + "\"");
}
}
this._material.RemoveAllTechniques();
obj.Context = this._material;
this._material.Origin = obj.File;
foreach (var i in obj.Children)
{
if (i is PropertyAbstractNode)
{
var prop = (PropertyAbstractNode)i;
switch ((Keywords)prop.Id)
{
#region ID_LOD_VALUES
case Keywords.ID_LOD_VALUES:
{
var lods = new LodValueList();
foreach (var j in prop.Values)
{
Real v = 0;
if (getReal(j, out v))
{
lods.Add(v);
}
else
{
compiler.AddError(CompileErrorCode.NumberExpected, prop.File, prop.Line,
"lod_values expects only numbers as arguments");
}
}
this._material.SetLodLevels(lods);
}
break;
#endregion ID_LOD_VALUES
#region ID_LOD_DISTANCES
case Keywords.ID_LOD_DISTANCES:
{
// Set strategy to distance strategy
LodStrategy strategy = DistanceLodStrategy.Instance;
this._material.LodStrategy = strategy;
// Real in lod distances
var lods = new LodValueList();
foreach (var j in prop.Values)
{
Real v = 0;
if (getReal(j, out v))
{
lods.Add(v);
}
else
{
compiler.AddError(CompileErrorCode.NumberExpected, prop.File, prop.Line,
"lod_values expects only numbers as arguments");
}
}
this._material.SetLodLevels(lods);
}
break;
#endregion ID_LOD_DISTANCES
#region ID_LOD_STRATEGY
case Keywords.ID_LOD_STRATEGY:
if (prop.Values.Count == 0)
{
compiler.AddError(CompileErrorCode.StringExpected, prop.File, prop.Line);
}
else if (prop.Values.Count > 1)
{
compiler.AddError(CompileErrorCode.FewerParametersExpected, prop.File, prop.Line,
"lod_strategy only supports 1 argument");
}
else
{
var strategyName = string.Empty;
var result = getString(prop.Values[0], out strategyName);
if (result)
{
var strategy = LodStrategyManager.Instance.GetStrategy(strategyName);
result = strategy != null;
if (result)
{
this._material.LodStrategy = strategy;
}
}
if (!result)
{
compiler.AddError(CompileErrorCode.InvalidParameters, prop.File, prop.Line,
"lod_strategy argument must be a valid lod strategy");
}
}
break;
#endregion ID_LOD_STRATEGY
#region ID_RECEIVE_SHADOWS
case Keywords.ID_RECEIVE_SHADOWS:
if (prop.Values.Count == 0)
{
compiler.AddError(CompileErrorCode.StringExpected, prop.File, prop.Line);
}
else if (prop.Values.Count > 1)
{
compiler.AddError(CompileErrorCode.FewerParametersExpected, prop.File, prop.Line,
"receive_shadows only supports 1 argument");
}
else
{
var val = true;
if (getBoolean(prop.Values[0], out val))
{
this._material.ReceiveShadows = val;
}
else
{
compiler.AddError(CompileErrorCode.InvalidParameters, prop.File, prop.Line,
"receive_shadows argument must be \"true\", \"false\", \"yes\", \"no\", \"on\", or \"off\"");
}
}
break;
#endregion ID_RECEIVE_SHADOWS
#region ID_TRANSPARENCY_CASTS_SHADOWS
case Keywords.ID_TRANSPARENCY_CASTS_SHADOWS:
if (prop.Values.Count == 0)
{
compiler.AddError(CompileErrorCode.StringExpected, prop.File, prop.Line);
}
else if (prop.Values.Count > 1)
{
compiler.AddError(CompileErrorCode.FewerParametersExpected, prop.File, prop.Line,
"transparency_casts_shadows only supports 1 argument");
}
else
{
var val = true;
if (getBoolean(prop.Values[0], out val))
{
this._material.TransparencyCastsShadows = val;
}
else
{
compiler.AddError(CompileErrorCode.InvalidParameters, prop.File, prop.Line,
"transparency_casts_shadows argument must be \"true\", \"false\", \"yes\", \"no\", \"on\", or \"off\"");
}
}
break;
#endregion ID_TRANSPARENCY_CASTS_SHADOWS
#region ID_SET_TEXTURE_ALIAS
case Keywords.ID_SET_TEXTURE_ALIAS:
if (prop.Values.Count == 0)
{
compiler.AddError(CompileErrorCode.StringExpected, prop.File, prop.Line);
}
else if (prop.Values.Count > 3)
{
compiler.AddError(CompileErrorCode.FewerParametersExpected, prop.File, prop.Line);
}
else
{
AbstractNode i0 = getNodeAt(prop.Values, 0), i1 = getNodeAt(prop.Values, 1);
String name, value;
if (getString(i0, out name) && getString(i1, out value))
{
this._textureAliases.Add(name, value);
}
else
{
compiler.AddError(CompileErrorCode.InvalidParameters, prop.File, prop.Line,
"set_texture_alias must have 2 string argument");
}
}
break;
#endregion ID_SET_TEXTURE_ALIAS
default:
compiler.AddError(CompileErrorCode.UnexpectedToken, prop.File, prop.Line,
"token \"" + prop.Name + "\" is not recognized");
break;
} //end of switch statement
}
else if (i is ObjectAbstractNode)
{
processNode(compiler, i);
}
}
// Apply the texture aliases
ScriptCompilerEvent locEvt = new PreApplyTextureAliasesScriptCompilerEvent(this._material, ref this._textureAliases);
compiler._fireEvent(ref locEvt);
this._material.ApplyTextureAliases(this._textureAliases);
this._textureAliases.Clear();
}
public override ushort GetIndex( Real value, LodValueList materialLodValueList )
{
// Values are descending
return GetIndexDescending( value, materialLodValueList );
}
public override bool IsSorted(LodValueList values)
{
throw new NotImplementedException();
}
public void GetIndexDescendingTest()
{
var materialLodUsageList = new LodValueList()
{
new Real( 3.0f ), new Real( 2.0f ), new Real( 1.0f ), new Real( 0.0f )
};
var lodStrategy = new LodStategyDescending();
for ( int expected = 0; expected < materialLodUsageList.Count; expected++ )
{
int actual = lodStrategy.GetIndex( 3.0f - expected, materialLodUsageList );
Assert.AreEqual( expected, actual );
}
}
public override ushort GetIndex(Axiom.Math.Real value, LodValueList materialLodValueList)
{
return(GetIndexDescending(value, materialLodValueList));
}
public override ushort GetIndex( Axiom.Math.Real value, LodValueList materialLodValueList )
{
return GetIndexDescending( value, materialLodValueList );
}
public override bool IsSorted( LodValueList values )
{
throw new NotImplementedException();
}
public override bool IsSorted( LodValueList values )
{
// Check if values are sorted descending
return IsSortedDescending( values );
}
public abstract ushort GetIndex(Real value, LodValueList materialLodValueList);
/// <see cref="Translator.Translate"/>
public override void Translate( ScriptCompiler compiler, AbstractNode node )
{
var obj = (ObjectAbstractNode)node;
if ( obj != null )
{
if ( string.IsNullOrEmpty( obj.Name ) )
{
compiler.AddError( CompileErrorCode.ObjectNameExpected, obj.File, obj.Line );
}
}
else
{
compiler.AddError( CompileErrorCode.ObjectNameExpected, node.File, node.Line );
return;
}
// Create a material with the given name
object mat;
ScriptCompilerEvent evt = new CreateMaterialScriptCompilerEvent( node.File, obj.Name, compiler.ResourceGroup );
var processed = compiler._fireEvent( ref evt, out mat );
if ( !processed )
{
//TODO
// The original translated implementation of this code block was simply the following:
// _material = (Material)MaterialManager.Instance.Create( obj.Name, compiler.ResourceGroup );
// but sometimes it generates an exception due to a duplicate resource.
// In order to avoid the above mentioned exception, the implementation was changed, but
// it need to be checked when ResourceManager._add will be updated to the latest version
var checkForExistingMat = (Material)MaterialManager.Instance.GetByName( obj.Name );
if ( checkForExistingMat == null )
{
this._material = (Material)MaterialManager.Instance.Create( obj.Name, compiler.ResourceGroup );
}
else
{
this._material = checkForExistingMat;
}
}
else
{
this._material = (Material)mat;
if ( this._material == null )
{
compiler.AddError( CompileErrorCode.ObjectAllocationError, obj.File, obj.Line,
"failed to find or create material \"" + obj.Name + "\"" );
}
}
this._material.RemoveAllTechniques();
obj.Context = this._material;
this._material.Origin = obj.File;
foreach ( var i in obj.Children )
{
if ( i is PropertyAbstractNode )
{
var prop = (PropertyAbstractNode)i;
switch ( (Keywords)prop.Id )
{
#region ID_LOD_VALUES
case Keywords.ID_LOD_VALUES:
{
var lods = new LodValueList();
foreach ( var j in prop.Values )
{
Real v = 0;
if ( getReal( j, out v ) )
{
lods.Add( v );
}
else
{
compiler.AddError( CompileErrorCode.NumberExpected, prop.File, prop.Line,
"lod_values expects only numbers as arguments" );
}
}
this._material.SetLodLevels( lods );
}
break;
#endregion ID_LOD_VALUES
#region ID_LOD_DISTANCES
case Keywords.ID_LOD_DISTANCES:
{
// Set strategy to distance strategy
LodStrategy strategy = DistanceLodStrategy.Instance;
this._material.LodStrategy = strategy;
// Real in lod distances
var lods = new LodValueList();
foreach ( var j in prop.Values )
{
Real v = 0;
if ( getReal( j, out v ) )
{
lods.Add( v );
}
else
{
compiler.AddError( CompileErrorCode.NumberExpected, prop.File, prop.Line,
"lod_values expects only numbers as arguments" );
}
}
this._material.SetLodLevels( lods );
}
break;
#endregion ID_LOD_DISTANCES
#region ID_LOD_STRATEGY
case Keywords.ID_LOD_STRATEGY:
if ( prop.Values.Count == 0 )
{
compiler.AddError( CompileErrorCode.StringExpected, prop.File, prop.Line );
}
else if ( prop.Values.Count > 1 )
{
compiler.AddError( CompileErrorCode.FewerParametersExpected, prop.File, prop.Line,
"lod_strategy only supports 1 argument" );
}
else
{
var strategyName = string.Empty;
var result = getString( prop.Values[ 0 ], out strategyName );
if ( result )
{
var strategy = LodStrategyManager.Instance.GetStrategy( strategyName );
result = strategy != null;
if ( result )
{
this._material.LodStrategy = strategy;
}
}
if ( !result )
{
compiler.AddError( CompileErrorCode.InvalidParameters, prop.File, prop.Line,
"lod_strategy argument must be a valid lod strategy" );
}
}
break;
#endregion ID_LOD_STRATEGY
#region ID_RECEIVE_SHADOWS
case Keywords.ID_RECEIVE_SHADOWS:
if ( prop.Values.Count == 0 )
{
compiler.AddError( CompileErrorCode.StringExpected, prop.File, prop.Line );
}
else if ( prop.Values.Count > 1 )
{
compiler.AddError( CompileErrorCode.FewerParametersExpected, prop.File, prop.Line,
"receive_shadows only supports 1 argument" );
}
else
{
var val = true;
if ( getBoolean( prop.Values[ 0 ], out val ) )
{
this._material.ReceiveShadows = val;
}
else
{
compiler.AddError( CompileErrorCode.InvalidParameters, prop.File, prop.Line,
"receive_shadows argument must be \"true\", \"false\", \"yes\", \"no\", \"on\", or \"off\"" );
}
}
break;
#endregion ID_RECEIVE_SHADOWS
#region ID_TRANSPARENCY_CASTS_SHADOWS
case Keywords.ID_TRANSPARENCY_CASTS_SHADOWS:
if ( prop.Values.Count == 0 )
{
compiler.AddError( CompileErrorCode.StringExpected, prop.File, prop.Line );
}
else if ( prop.Values.Count > 1 )
{
compiler.AddError( CompileErrorCode.FewerParametersExpected, prop.File, prop.Line,
"transparency_casts_shadows only supports 1 argument" );
}
else
{
var val = true;
if ( getBoolean( prop.Values[ 0 ], out val ) )
{
this._material.TransparencyCastsShadows = val;
}
else
{
compiler.AddError( CompileErrorCode.InvalidParameters, prop.File, prop.Line,
"transparency_casts_shadows argument must be \"true\", \"false\", \"yes\", \"no\", \"on\", or \"off\"" );
}
}
break;
#endregion ID_TRANSPARENCY_CASTS_SHADOWS
#region ID_SET_TEXTURE_ALIAS
case Keywords.ID_SET_TEXTURE_ALIAS:
if ( prop.Values.Count == 0 )
{
compiler.AddError( CompileErrorCode.StringExpected, prop.File, prop.Line );
}
else if ( prop.Values.Count > 3 )
{
compiler.AddError( CompileErrorCode.FewerParametersExpected, prop.File, prop.Line );
}
else
{
AbstractNode i0 = getNodeAt( prop.Values, 0 ), i1 = getNodeAt( prop.Values, 1 );
String name, value;
if ( getString( i0, out name ) && getString( i1, out value ) )
{
this._textureAliases.Add( name, value );
}
else
{
compiler.AddError( CompileErrorCode.InvalidParameters, prop.File, prop.Line,
"set_texture_alias must have 2 string argument" );
}
}
break;
#endregion ID_SET_TEXTURE_ALIAS
default:
compiler.AddError( CompileErrorCode.UnexpectedToken, prop.File, prop.Line,
"token \"" + prop.Name + "\" is not recognized" );
break;
} //end of switch statement
}
else if ( i is ObjectAbstractNode )
{
processNode( compiler, i );
}
}
// Apply the texture aliases
ScriptCompilerEvent locEvt = new PreApplyTextureAliasesScriptCompilerEvent( this._material, ref this._textureAliases );
compiler._fireEvent( ref locEvt );
this._material.ApplyTextureAliases( this._textureAliases );
this._textureAliases.Clear();
}
/// <summary>
/// Sets the distance at which level-of-detail (LOD) levels come into effect.
/// </summary>
/// <remarks>
/// You should only use this if you have assigned LOD indexes to the <see cref="Technique"/>
/// instances attached to this <see cref="Material"/>. If you have done so, you should call this
/// method to determine the distance at which the low levels of detail kick in.
/// The decision about what distance is actually used is a combination of this
/// and the LOD bias applied to both the current <see cref="Camera"/> and the current Entity.
/// </remarks>
/// <param name="lodDistanceList">
/// A list of floats which indicate the distance at which to
/// switch to lower details. They are listed in LOD index order, starting at index
/// 1 (ie the first level down from the highest level 0, which automatically applies
/// from a distance of 0).
/// </param>
/// <ogre name="setLoadLevels" />
public void SetLodLevels( LodValueList lodDistanceList )
{
// clear and add the 0 distance entry
this._lodValues.Clear();
this.UserLodValues.Clear();
this.UserLodValues.Add( float.NaN );
this._lodValues.Add( LodStrategy.BaseValue );
foreach ( Real lodValue in lodDistanceList )
{
this.UserLodValues.Add( lodValue );
if ( LodStrategy != null )
{
this._lodValues.Add( LodStrategy.TransformUserValue( lodValue ) );
}
}
}
