/// <summary>
/// Class level dispose method
/// </summary>
/// <remarks>
/// When implementing this method in an inherited class the following template should be used;
/// protected override void dispose( bool disposeManagedResources )
/// {
/// if ( !isDisposed )
/// {
/// if ( disposeManagedResources )
/// {
/// // Dispose managed resources.
/// }
///
/// // There are no unmanaged resources to release, but
/// // if we add them, they need to be released here.
/// }
///
/// // If it is available, make the call to the
/// // base class's Dispose(Boolean) method
/// base.dispose( disposeManagedResources );
/// }
/// </remarks>
/// <param name="disposeManagedResources">True if Unmanaged resources should be released.</param>
protected override void dispose(bool disposeManagedResources)
{
if (!IsDisposed)
{
if (disposeManagedResources)
{
// Dispose managed resources.
if (this.renderOperation != null)
{
if (!this.renderOperation.IsDisposed)
{
this.renderOperation.Dispose();
}
this.renderOperation = null;
}
if (this.material != null)
{
if (!this.material.IsDisposed)
{
this.material.Dispose();
}
this.material = null;
}
}
// There are no unmanaged resources to release, but
// if we add them, they need to be released here.
}
base.dispose(disposeManagedResources);
}
/// <summary>
/// Gets the render operation for this shadow renderable.
/// </summary>
/// <param name="op"></param>
public void GetRenderOperation(RenderOperation op)
{
// TODO: Ensure all other places throughout the engine set these properly
op.indexData = renderOp.indexData;
op.useIndices = true;
op.operationType = OperationType.TriangleList;
op.vertexData = renderOp.vertexData;
}
public override void GetRenderOperation(RenderOperation op)
{
// LineLists never use indices
op.useIndices = false;
op.indexData = null;
// set the operation type
op.operationType = OperationType.LineList;
// set the vertex data correctly
op.vertexData = vertexData;
}
public override void GetRenderOperation(RenderOperation op)
{
// LineLists never use indices
op.useIndices = false;
op.indexData = null;
// set the operation type
op.operationType = OperationType.LineList;
// set the vertex data correctly
op.vertexData = vertexData;
}
public override void GetRenderOperation(RenderOperation op)
{
ValidateBrush();
op.useIndices = true;
op.operationType = OperationType.TriangleList;
if (rebuildVertex)
{
buildVertexData();
rebuildVertex = false;
}
op.vertexData = vertexData;
if (rebuildIndex)
{
buildIndexData();
rebuildIndex = false;
}
op.indexData = indexData;
}
/// <summary>
/// Gets the render operation required to send this object to the frame buffer.
/// </summary>
public void GetRenderOperation(RenderOperation op)
{
}
/// <summary>
/// Class level dispose method
/// </summary>
/// <remarks>
/// When implementing this method in an inherited class the following template should be used;
/// protected override void dispose( bool disposeManagedResources )
/// {
/// if ( !isDisposed )
/// {
/// if ( disposeManagedResources )
/// {
/// // Dispose managed resources.
/// }
///
/// // There are no unmanaged resources to release, but
/// // if we add them, they need to be released here.
/// }
///
/// // If it is available, make the call to the
/// // base class's Dispose(Boolean) method
/// base.dispose( disposeManagedResources );
/// }
/// </remarks>
/// <param name="disposeManagedResources">True if Unmanaged resources should be released.</param>
protected override void dispose( bool disposeManagedResources )
{
if ( !IsDisposed )
{
if ( disposeManagedResources )
{
// Dispose managed resources.
if ( renderOperation != null )
{
if (!this.renderOperation.IsDisposed)
this.renderOperation.Dispose();
renderOperation = null;
}
if (indexData != null)
{
if (!indexData.IsDisposed)
indexData.Dispose();
indexData = null;
}
if (vertexData != null)
{
if (!vertexData.IsDisposed)
vertexData.Dispose();
vertexData = null;
}
}
// There are no unmanaged resources to release, but
// if we add them, they need to be released here.
}
base.dispose(disposeManagedResources);
}
public override void GetRenderOperation(RenderOperation op)
{
Debug.Assert(inBoundary);
Debug.Assert(renderOp.vertexData != null, "attempting to render heightField with no vertexData");
Debug.Assert(renderOp.indexData != null, "attempting to render heightField with no indexData");
op.useIndices = this.renderOp.useIndices;
op.operationType = this.renderOp.operationType;
op.vertexData = this.renderOp.vertexData;
op.indexData = this.renderOp.indexData;
}
/// Gets all the patches within an AABB in world coordinates as GeometryData structs
public virtual void GetRenderOpsInBox( AxisAlignedBox box, ArrayList opList)
{
if ( MathUtil.Intersects(box, bounds ) != Intersection.None )
{
RenderOperation rend = new RenderOperation();
renderable.GetRenderOperation( rend );
opList.Add( rend );
}
}
public TerrainPage(Vector3 location, Page page)
{
this.location = location;
pageCoord = new PageCoord(location, TerrainManager.Instance.PageSize);
terrainMaterial = TerrainManager.Instance.TerrainMaterialConfig.NewTerrainMaterial(pageCoord.X, pageCoord.Z);
currentPage = page;
Debug.Assert(location == currentPage.Location, "creating TerrainPage with page at different location");
numTiles = currentPage.NumTiles;
patchSize = TerrainManager.Instance.PageSize / numTiles;
// set up the page height maps for this page of terrain
subPageSize = TerrainManager.Instance.SubPageSize;
int subPagesPerPage = TerrainManager.Instance.PageSize / subPageSize;
pageHeightMap = new PageHeightMap(subPagesPerPage, TerrainManager.Instance.PageSize,
TerrainManager.Instance.MaxMetersPerSample, TerrainManager.Instance.MinMetersPerSample);
pageHeightMap.Location = location;
// create and position a scene node for this terrain page
string nodeName = String.Format("TerrainPage[{0},{1}]", (int)(location.x / TerrainManager.oneMeter),
(int)(location.z / TerrainManager.oneMeter));
// DEBUG - Console.WriteLine("Creating {0}", name);
sceneNode = TerrainManager.Instance.WorldRootSceneNode.CreateChildSceneNode(nodeName);
sceneNode.Position = location;
sceneNode.AttachObject(this);
// create the render operation
renderOp = new RenderOperation();
renderOp.operationType = OperationType.TriangleList;
renderOp.useIndices = true;
CreatePatches();
SetCastShadows();
UpdateBounds();
TerrainManager.Instance.ShadowConfig.ShadowTechniqueChange += ShadowTechniqueChangeHandler;
}
/// <summary>
/// Internal utility method for rendering a single object.
/// </summary>
/// <param name="renderable">The renderable to issue to the pipeline.</param>
/// <param name="pass">The pass which is being used.</param>
/// <param name="doLightIteration">If true, this method will issue the renderable to
/// the pipeline possibly multiple times, if the pass indicates it should be
/// done once per light.</param>
/// <param name="manualLightList">Only applicable if 'doLightIteration' is false, this
/// method allows you to pass in a previously determined set of lights
/// which will be used for a single render of this object.</param>
protected virtual void RenderSingleObject( IRenderable renderable,
Pass pass,
bool doLightIteration,
LightList manualLightList )
{
ushort numMatrices = 0;
// grab the current scene detail level
PolygonMode camPolyMode = this.cameraInProgress.PolygonMode;
// get the world matrices and the count
renderable.GetWorldTransforms( this.xform );
numMatrices = renderable.NumWorldTransforms;
// set the world matrices in the render system
if ( numMatrices > 1 )
{
this.targetRenderSystem.SetWorldMatrices( this.xform, numMatrices );
}
else
{
this.targetRenderSystem.WorldMatrix = this.xform[ 0 ];
}
// issue view/projection changes (if any)
this.UseRenderableViewProjection( renderable );
if ( !this.suppressRenderStateChanges )
{
bool passSurfaceAndLightParams = true;
if ( pass.IsProgrammable )
{
// Tell auto params object about the renderable change
this.autoParamDataSource.Renderable = renderable;
pass.UpdateAutoParamsNoLights( this.autoParamDataSource );
if ( pass.HasVertexProgram )
{
passSurfaceAndLightParams = pass.VertexProgram.PassSurfaceAndLightStates;
}
}
// issue texture units that depend on updated view matrix
// reflective env mapping is one case
for ( int i = 0; i < pass.TextureUnitStageCount; i++ )
{
TextureUnitState texUnit = pass.GetTextureUnitState( i );
if ( texUnit.HasViewRelativeTexCoordGen )
{
targetRenderSystem.SetTextureUnitSettings( i, texUnit );
//this.targetRenderSystem.SetTextureUnit( i, texUnit, !pass.HasFragmentProgram );
}
}
// Normalize normals
bool thisNormalize = renderable.NormalizeNormals;
if ( thisNormalize != normalizeNormals )
{
this.targetRenderSystem.NormalizeNormals = thisNormalize;
normalizeNormals = thisNormalize;
}
// Set up the solid / wireframe override
PolygonMode requestedMode = pass.PolygonMode;
if ( renderable.PolygonModeOverrideable == true )
{
// check camera detial only when render detail is overridable
if ( requestedMode > camPolyMode )
{
// only downgrade detail; if cam says wireframe we don't go up to solid
requestedMode = camPolyMode;
}
}
if ( requestedMode != this.lastPolyMode )
{
this.targetRenderSystem.PolygonMode = requestedMode;
this.lastPolyMode = requestedMode;
}
// TODO: Add ClipPlanes to RenderSystem.cs
// This is removed in OGRE 1.6.0... no need to port - J. Price
//targetRenderSystem.ClipPlanes = renderable.ClipPlanes;
// get the renderables render operation
op = renderable.RenderOperation;
// TODO: Add srcRenderable to RenderOperation.cs
//op.srcRenderable = renderable;
if ( doLightIteration )
{
// Here's where we issue the rendering operation to the render system
// Note that we may do this once per light, therefore it's in a loop
// and the light parameters are updated once per traversal through the
// loop
LightList rendLightList = renderable.Lights;
bool iteratePerLight = pass.IteratePerLight;
int numIterations = iteratePerLight ? rendLightList.Count : 1;
LightList lightListToUse = null;
for ( int i = 0; i < numIterations; i++ )
{
// determine light list to use
if ( iteratePerLight )
{
localLightList.Clear();
// check whether we need to filter this one out
if ( pass.RunOnlyOncePerLightType && pass.OnlyLightType != rendLightList[ i ].Type )
{
// skip this one
continue;
}
localLightList.Add( rendLightList[ i ] );
lightListToUse = localLightList;
}
else
{
// use complete light list
lightListToUse = rendLightList;
}
if ( pass.IsProgrammable )
{
// Update any automatic gpu params for lights
// Other bits of information will have to be looked up
this.autoParamDataSource.SetCurrentLightList( lightListToUse );
pass.UpdateAutoParamsLightsOnly( this.autoParamDataSource );
UpdateGpuProgramParameters( pass );
}
// Do we need to update light states?
// Only do this if fixed-function vertex lighting applies
if ( pass.LightingEnabled && passSurfaceAndLightParams )
{
this.targetRenderSystem.UseLights( lightListToUse, pass.MaxSimultaneousLights );
}
this.targetRenderSystem.CurrentPassIterationCount = pass.IterationCount;
// issue the render op
this.targetRenderSystem.Render( op );
} // iterate per light
}
else
{
// do we need to update GPU program parameters?
if ( pass.IsProgrammable )
{
// do we have a manual light list
if ( manualLightList != null )
{
// Update any automatic gpu params for lights
// Other bits of information will have to be looked up
this.autoParamDataSource.SetCurrentLightList( manualLightList );
pass.UpdateAutoParamsLightsOnly( this.autoParamDataSource );
}
UpdateGpuProgramParameters( pass );
}
// Use manual lights if present, and not using vertex programs
if ( manualLightList != null && pass.LightingEnabled && passSurfaceAndLightParams )
{
this.targetRenderSystem.UseLights( manualLightList, pass.MaxSimultaneousLights );
}
this.targetRenderSystem.CurrentPassIterationCount = pass.IterationCount;
// issue the render op
this.targetRenderSystem.Render( op );
}
}
else
{
// suppressRenderStateChanges
// Just render
this.targetRenderSystem.CurrentPassIterationCount = 1;
this.targetRenderSystem.Render( op );
}
// Reset view / projection changes if any
this.ResetViewProjectionMode();
}
/// <summary>
/// Class level dispose method
/// </summary>
/// <remarks>
/// When implementing this method in an inherited class the following template should be used;
/// protected override void dispose( bool disposeManagedResources )
/// {
/// if ( !isDisposed )
/// {
/// if ( disposeManagedResources )
/// {
/// // Dispose managed resources.
/// }
///
/// // There are no unmanaged resources to release, but
/// // if we add them, they need to be released here.
/// }
///
/// // If it is available, make the call to the
/// // base class's Dispose(Boolean) method
/// base.dispose( disposeManagedResources );
/// }
/// </remarks>
/// <param name="disposeManagedResources">True if Unmanaged resources should be released.</param>
protected virtual void dispose( bool disposeManagedResources )
{
if ( !isDisposed )
{
if ( disposeManagedResources )
{
// Dispose managed resources.
if ( renderOperation != null )
{
renderOperation.vertexData = null;
renderOperation.indexData = null;
renderOperation = null;
}
}
// There are no unmanaged resources to release, but
// if we add them, they need to be released here.
}
isDisposed = true;
}
/// <summary>
/// Render something to the active viewport.
/// </summary>
/// <remarks>
/// Low-level rendering interface to perform rendering
/// operations. Unlikely to be used directly by client
/// applications, since the <see cref="SceneManager"/> and various support
/// classes will be responsible for calling this method.
/// Can only be called between BeginScene and EndScene
/// </remarks>
/// <param name="op">
/// A rendering operation instance, which contains details of the operation to be performed.
/// </param>
public override void Render(RenderOperation op)
{
//StateManager.RasterizerState.FillMode = XFG.FillMode.Solid;
StateManager.CommitState(_device);
#if SILVERLIGHT
StateManager.ResetState(_device);
#endif
Effect effectToUse;
if (useSkinnedEffect)
{
var boneMatrices = new Matrix[Root.Instance.SceneManager.AutoParamData.WorldMatrixCount];
for (var i = 0; i < Root.Instance.SceneManager.AutoParamData.WorldMatrixCount; i++)
{
#if!(XBOX || XBOX360)
boneMatrices[i] =
XnaHelper.Convert(Root.Instance.SceneManager.AutoParamData.WorldMatrixArray[i]);
#else
Axiom.Math.Matrix4 matrix = Root.Instance.SceneManager.AutoParamData.WorldMatrixArray[i];
boneMatrices[i] = XnaHelper.Convert( matrix );
#endif
}
skinnedEffect.SetBoneTransforms(boneMatrices);
effectToUse = skinnedEffect;
}
else
{
basicEffect.VertexColorEnabled =
op.vertexData.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.Diffuse) != null;
basicEffect.TextureEnabled =
op.vertexData.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.TexCoords) != null;
effectToUse = basicEffect;
}
var ve = op.vertexData.vertexDeclaration.FindElementBySemantic(VertexElementSemantic.Normal);
if (ve != null) //this operation has Normals
{
basicEffect.LightingEnabled = false; //turn off lighting
}
basicEffect.LightingEnabled = (ve != null);
//Debug.WriteLine(" Vertices=" + op.vertexData.vertexCount +
// " Normals=" + (ve != null) +
// " Lighting=" + basicEffect.LightingEnabled +
// " DL0=" + basicEffect.DirectionalLight0.Enabled +
// " Fog=" + basicEffect.FogEnabled +
// " " + effectToUse);
// effectToUse.CurrentTechnique.Passes[0].Apply();
//DualTextureEffect dualTextureEffect;
// don't even bother if there are no vertices to render, causes problems on some cards (FireGL 8800));)
if (op.vertexData.vertexCount == 0)
{
return;
}
// class base implementation first
base.Render(op);
/*---------------shaders generator part------*/
#if AXIOM_FF_EMULATION
if ( Root.Instance.RenderSystem.ConfigOptions[ "Use Content Pipeline" ].Value != "Yes" )
{
if ( !VertexShaderIsSet || !PixelShaderIsSet )
{
FixedFunctionEmulation.VertexBufferDeclaration vbd = new FixedFunctionEmulation.VertexBufferDeclaration();
List<FixedFunctionEmulation.VertexBufferElement> lvbe = new List<FixedFunctionEmulation.VertexBufferElement>( op.vertexData.vertexDeclaration.ElementCount );
int textureLayer = 0;
for ( int i = 0; i < op.vertexData.vertexDeclaration.ElementCount; i++ )
{
FixedFunctionEmulation.VertexBufferElement element = new FixedFunctionEmulation.VertexBufferElement();
element.VertexElementIndex = (ushort)op.vertexData.vertexDeclaration[ i ].Index;
element.VertexElementSemantic = op.vertexData.vertexDeclaration[ i ].Semantic;
element.VertexElementType = op.vertexData.vertexDeclaration[ i ].Type;
//uncomment this to see the texture shadow
//the problem is that some texcoords are given but texture is not set
//
/*if (//op.vertexData.vertexDeclaration[i].Type == VertexElementType.Float1 &&
op.vertexData.vertexDeclaration[ i ].Semantic == VertexElementSemantic.TexCoords )
{
if ( !texStageDesc[ textureLayer ].Enabled )
{
texStageDesc[ textureLayer ].layerBlendMode = new LayerBlendModeEx();
texStageDesc[ textureLayer ].layerBlendMode.blendType = LayerBlendType.Color;
texStageDesc[ textureLayer ].layerBlendMode.operation = LayerBlendOperationEx.Modulate;
texStageDesc[ textureLayer ].layerBlendMode.source1 = LayerBlendSource.Texture;
texStageDesc[ textureLayer ].layerBlendMode.source2 = LayerBlendSource.Current;
texStageDesc[ textureLayer ].Enabled = true;
//texStageDesc[ textureLayer ].autoTexCoordType = TexCoordCalcMethod.ProjectiveTexture;
texStageDesc[ textureLayer ].coordIndex = textureLayer;
switch ( op.vertexData.vertexDeclaration[ i ].Type )
{
case VertexElementType.Float1:
texStageDesc[ textureLayer ].texType = TextureType.OneD;
break;
case VertexElementType.Float2:
texStageDesc[ textureLayer ].texType = TextureType.TwoD;
break;
case VertexElementType.Float3:
texStageDesc[ textureLayer ].texType = TextureType.ThreeD;
break;
}
//texStageDesc[textureLayer].layerBlendMode = new LayerBlendModeEx();
}
textureLayer++;
}*/
lvbe.Add( element );
}
vbd.VertexBufferElements = lvbe;
for ( int i = 0; i < Config.MaxTextureLayers; i++ )
{
FixedFunctionEmulation.TextureLayerState tls = new FixedFunctionEmulation.TextureLayerState();
if ( texStageDesc[ i ].Enabled )
//if (texStageDesc[i].tex != null)
{
tls.TextureType = texStageDesc[ i ].texType;
tls.TexCoordCalcMethod = texStageDesc[ i ].autoTexCoordType;
tls.CoordIndex = texStageDesc[ i ].coordIndex;
tls.LayerBlendMode = texStageDesc[ i ].layerBlendMode;
//TextureLayerStateList
_fixedFunctionState.TextureLayerStates.Add( tls );
}
FixedFunctionEmulation.GeneralFixedFunctionState gff;
gff = _fixedFunctionState.GeneralFixedFunctionState;
gff.EnableLighting = _ffProgramParameters.LightingEnabled;
gff.FogMode = _ffProgramParameters.FogMode;
_fixedFunctionState.GeneralFixedFunctionState = gff;
//lights
foreach ( Light l in _ffProgramParameters.Lights )
_fixedFunctionState.Lights.Add( l.Type );
_fixedFunctionProgram = (FixedFunctionEmulation.HLSLFixedFunctionProgram)_shaderManager.GetShaderPrograms( "hlsl", vbd, _fixedFunctionState );
_fixedFunctionProgram.FragmentProgramUsage.Program.DefaultParameters.NamedParamCount.ToString();
_fixedFunctionProgram.SetFixedFunctionProgramParameters( _ffProgramParameters );
//Bind Vertex Program
if ( !VertexShaderIsSet )
{
BindGpuProgram( _fixedFunctionProgram.VertexProgramUsage.Program.BindingDelegate );
BindGpuProgramParameters( GpuProgramType.Vertex, _fixedFunctionProgram.VertexProgramUsage.Params );
needToUnmapVS = true;
}
// Bind Fragment Program
if ( !PixelShaderIsSet )
{
BindGpuProgram( _fixedFunctionProgram.FragmentProgramUsage.Program.BindingDelegate );
BindGpuProgramParameters( GpuProgramType.Fragment, _fixedFunctionProgram.FragmentProgramUsage.Params );
needToUnmapFS = true;
}
//clear parameters lists for next frame
_fixedFunctionState.Lights.Clear();
_fixedFunctionState.TextureLayerStates.Clear();
//_fixedFunctionState.MaterialEnabled = false;
//_ffProgramParameters.FogMode = FogMode.None;
}
}
}
/*---------------------------------------------------------------------------------------------------------*/
#endif
var vertDecl = (XnaVertexDeclaration)op.vertexData.vertexDeclaration;
// set the vertex declaration and buffer binding
//_device.VertexDeclaration = vertDecl.XnaVertexDecl;
_setVertexBufferBinding(op.vertexData.vertexBufferBinding);
PrimitiveType primType = 0;
switch (op.operationType)
{
case OperationType.PointList:
primType = PrimitiveType.LineList; /* XNA 4.0 doesn't support PointList so using LineList instead */
primCount = op.useIndices ? op.indexData.indexCount : op.vertexData.vertexCount;
break;
case OperationType.LineList:
primType = PrimitiveType.LineList;
primCount = (op.useIndices ? op.indexData.indexCount : op.vertexData.vertexCount) / 2;
break;
case OperationType.LineStrip:
primType = PrimitiveType.LineStrip;
primCount = (op.useIndices ? op.indexData.indexCount : op.vertexData.vertexCount) - 1;
break;
case OperationType.TriangleList:
primType = PrimitiveType.TriangleList;
primCount = (op.useIndices ? op.indexData.indexCount : op.vertexData.vertexCount) / 3;
break;
case OperationType.TriangleStrip:
primType = PrimitiveType.TriangleStrip;
primCount = (op.useIndices ? op.indexData.indexCount : op.vertexData.vertexCount) - 2;
break;
case OperationType.TriangleFan:
throw new Exception("XNA 4.0 doesn't support TriangleFan");
} // switch(primType)
try
{
// are we gonna use indices?
if (op.useIndices)
{
var idxBuffer = (XnaHardwareIndexBuffer)op.indexData.indexBuffer;
_device.Indices = idxBuffer.XnaIndexBuffer;
foreach (var pass in effectToUse.CurrentTechnique.Passes)
{
pass.Apply();
_device.DrawIndexedPrimitives(primType, op.vertexData.vertexStart, 0, op.vertexData.vertexCount,
op.indexData.indexStart, primCount);
}
}
else
{
// draw vertices without indices
foreach (var pass in effectToUse.CurrentTechnique.Passes)
{
pass.Apply();
_device.DrawPrimitives(primType, op.vertexData.vertexStart, primCount);
}
}
}
catch (InvalidOperationException ioe)
{
LogManager.Instance.Write("Failed to draw RenderOperation : ", LogManager.BuildExceptionString(ioe));
}
//crap hack, set the sources back to null to allow accessing vertices and indices buffers
_device.SetVertexBuffer(null);
_device.Indices = null;
_device.Textures[0] = null;
#if AXIOM_FF_EMULATION
/*---------------shaders generator part------*/
if ( needToUnmapVS )
{
UnbindGpuProgram( GpuProgramType.Vertex );
}
if ( needToUnmapFS )
{
UnbindGpuProgram( GpuProgramType.Fragment );
}
/*--------------------------------------------*/
#endif
}
/// <summary>
/// Returns the geometry to use during rendering.
/// </summary>
/// <param name="op"></param>
public override void GetRenderOperation(Axiom.Graphics.RenderOperation op)
{
op.vertexData = renderOp.vertexData;
op.operationType = renderOp.operationType;
op.useIndices = renderOp.useIndices;
}
/// <summary>
/// Overloaded method.
/// </summary>
/// <param name="op"></param>
/// <returns></returns>
public void GetRenderOperation( RenderOperation op )
{
// call overloaded method with lod index of 0 by default
GetRenderOperation( op, 0 );
}
public void ManualRender( RenderOperation op,
Pass pass,
Viewport vp,
Matrix4 worldMatrix,
Matrix4 viewMatrix,
Matrix4 projMatrix )
{
this.ManualRender( op, pass, vp, worldMatrix, viewMatrix, projMatrix, false );
}
/// <summary>
/// generates renderOps from billboards. nulls billboards when done.
/// </summary>
public void FinishRebuild()
{
foreach (string textureName in billboards.Keys)
{
foreach (int alpha in billboards[textureName].Keys)
{
List<float[]>bbList = billboards[textureName][alpha];
RenderOperation renderOp = new RenderOperation();
renderOp.operationType = OperationType.TriangleList;
renderOp.useIndices = false;
VertexData vertexData = new VertexData();
vertexData.vertexCount = 6 * bbList.Count;
vertexData.vertexStart = 0;
// free the original vertex declaration to avoid a leak
HardwareBufferManager.Instance.DestroyVertexDeclaration(vertexData.vertexDeclaration);
// use common vertex declaration
vertexData.vertexDeclaration = TreeGroup.BillboardVertexDeclaration;
// create the hardware vertex buffer and set up the buffer binding
HardwareVertexBuffer hvBuffer = HardwareBufferManager.Instance.CreateVertexBuffer(
vertexData.vertexDeclaration.GetVertexSize(0), vertexData.vertexCount,
BufferUsage.StaticWriteOnly, false);
vertexData.vertexBufferBinding.SetBinding(0, hvBuffer);
renderOp.vertexData = vertexData;
// lock the vertex buffer
IntPtr ipBuf = hvBuffer.Lock(BufferLocking.Discard);
int bufferOff = 0;
unsafe
{
float* buffer = (float*)ipBuf.ToPointer();
foreach (float[] src in bbList)
{
buffer[bufferOff++] = src[0];
buffer[bufferOff++] = src[1];
buffer[bufferOff++] = src[2];
buffer[bufferOff++] = src[3];
buffer[bufferOff++] = src[4];
buffer[bufferOff++] = src[5];
buffer[bufferOff++] = src[6];
buffer[bufferOff++] = src[7];
buffer[bufferOff++] = src[8];
buffer[bufferOff++] = src[9];
buffer[bufferOff++] = src[10];
buffer[bufferOff++] = src[11];
buffer[bufferOff++] = src[12];
buffer[bufferOff++] = src[13];
buffer[bufferOff++] = src[14];
buffer[bufferOff++] = src[10];
buffer[bufferOff++] = src[11];
buffer[bufferOff++] = src[12];
buffer[bufferOff++] = src[13];
buffer[bufferOff++] = src[14];
buffer[bufferOff++] = src[15];
buffer[bufferOff++] = src[16];
buffer[bufferOff++] = src[17];
buffer[bufferOff++] = src[18];
buffer[bufferOff++] = src[19];
buffer[bufferOff++] = src[0];
buffer[bufferOff++] = src[1];
buffer[bufferOff++] = src[2];
buffer[bufferOff++] = src[3];
buffer[bufferOff++] = src[4];
}
}
hvBuffer.Unlock();
TreeBillboardRenderOp op = new TreeBillboardRenderOp(textureName, alpha, renderOp);
renderOps.Add(op);
}
}
billboards = null;
}
public override void GetRenderOperation(RenderOperation op)
{
op.vertexData = vertexData;
op.useIndices = false;
op.operationType = OperationType.TriangleStrip;
}
public void GetRenderOperation(RenderOperation op)
{
throw new NotImplementedException();
}
/// <summary> /// /// </summary> /// <param name="op"></param> public abstract void GetRenderOperation(RenderOperation op);
public TreeBillboardRenderOp(string textureName, int alpha, RenderOperation renderOp)
{
this.textureName = textureName;
this.alpha = alpha;
this.renderOp = renderOp;
}
public void BoundaryChange()
{
Debug.Assert(inBoundary);
DisposeBuffers();
renderOp = null;
BuildBuffers();
}
protected override void dispose( bool disposeManagedResources )
{
if ( !IsDisposed )
{
if ( disposeManagedResources )
{
if ( SceneManagerDestroyed != null )
{
SceneManagerDestroyed( this );
}
ClearScene();
RemoveAllCameras();
if ( op != null )
{
if ( !op.IsDisposed )
{
op.Dispose();
}
op = null;
}
if ( this.autoParamDataSource != null )
{
if ( !this.autoParamDataSource.IsDisposed )
{
this.autoParamDataSource.Dispose();
}
this.autoParamDataSource = null;
}
if ( this.rootSceneNode != null )
{
if ( !this.rootSceneNode.IsDisposed )
{
this.rootSceneNode.Dispose();
}
this.rootSceneNode = null;
}
}
}
base.dispose( disposeManagedResources );
}
private void BuildBuffers()
{
//
// Build the vertex buffer
//
List<Vector2> points = boundary.Points;
List<int[]> indices = boundary.Triangles;
VertexData vertexData = new VertexData();
vertexData.vertexCount = boundary.Points.Count;
vertexData.vertexStart = 0;
// set up the vertex declaration
int vDecOffset = 0;
vertexData.vertexDeclaration.AddElement(0, vDecOffset, VertexElementType.Float3, VertexElementSemantic.Position);
vDecOffset += VertexElement.GetTypeSize(VertexElementType.Float3);
vertexData.vertexDeclaration.AddElement(0, vDecOffset, VertexElementType.Float3, VertexElementSemantic.Normal);
vDecOffset += VertexElement.GetTypeSize(VertexElementType.Float3);
vertexData.vertexDeclaration.AddElement(0, vDecOffset, VertexElementType.Float2, VertexElementSemantic.TexCoords, 0);
vDecOffset += VertexElement.GetTypeSize(VertexElementType.Float2);
// create the hardware vertex buffer and set up the buffer binding
HardwareVertexBuffer hvBuffer = HardwareBufferManager.Instance.CreateVertexBuffer(
vertexData.vertexDeclaration.GetVertexSize(0), vertexData.vertexCount,
BufferUsage.StaticWriteOnly, false);
vertexData.vertexBufferBinding.SetBinding(0, hvBuffer);
// lock the vertex buffer
IntPtr ipBuf = hvBuffer.Lock(BufferLocking.Discard);
int bufferOff = 0;
float minx = boundary.Bounds.Minimum.x;
float minz = boundary.Bounds.Minimum.z;
unsafe
{
float* buffer = (float*)ipBuf.ToPointer();
for (int v = 0; v < vertexData.vertexCount; v++)
{
// Position
buffer[bufferOff++] = points[v].x;
buffer[bufferOff++] = height;
buffer[bufferOff++] = points[v].y;
// normals
buffer[bufferOff++] = 0;
buffer[bufferOff++] = 1;
buffer[bufferOff++] = 0;
// Texture
float tmpu = ( points[v].x - minx ) / (128 * TerrainManager.oneMeter);
float tmpv = ( points[v].y - minz )/ (128 * TerrainManager.oneMeter);
buffer[bufferOff++] = tmpu;
buffer[bufferOff++] = tmpv;
}
}
hvBuffer.Unlock();
//
// build the index buffer
//
IndexData indexData = new IndexData();
int numIndices = indices.Count * 3;
indexData.indexBuffer = HardwareBufferManager.Instance.CreateIndexBuffer(
IndexType.Size16, numIndices, BufferUsage.StaticWriteOnly);
IntPtr indexBufferPtr = indexData.indexBuffer.Lock(0, indexData.indexBuffer.Size, BufferLocking.Discard);
unsafe
{
ushort* indexBuffer = (ushort*)indexBufferPtr.ToPointer();
for (int i = 0; i < indices.Count; i++)
{
indexBuffer[i * 3] = (ushort)indices[i][0];
indexBuffer[i * 3 + 1] = (ushort)indices[i][1];
indexBuffer[i * 3 + 2] = (ushort)indices[i][2];
}
}
indexData.indexBuffer.Unlock();
indexData.indexCount = numIndices;
indexData.indexStart = 0;
renderOp = new RenderOperation();
renderOp.vertexData = vertexData;
renderOp.indexData = indexData;
renderOp.operationType = OperationType.TriangleList;
renderOp.useIndices = true;
}
public override void GetRenderOperation(RenderOperation op)
{
op.vertexData = vertexData;
op.useIndices = false;
op.operationType = OperationType.TriangleStrip;
}
protected override void dispose( bool disposeManagedResources )
{
if ( !IsDisposed )
{
if ( disposeManagedResources )
{
// Dispose managed resources.
if ( renderOperation != null )
{
renderOperation.vertexData = null;
renderOperation.indexData = null;
renderOperation = null;
}
}
}
base.dispose( disposeManagedResources );
}
public override void Render( RenderOperation op )
{
GLES2Config.GlCheckError( this );
base.Render( op );
var bufferData = 0;
var decl = op.vertexData.vertexDeclaration.Elements;
var gles2decl = op.vertexData.vertexDeclaration as GLES2VertexDeclaration;
// Use a little shorthand
#if !AXIOM_NO_GLES2_VAO_SUPPORT
bool useVAO = ( null != gles2decl && gles2decl.IsInitialized() );
#else
bool useVAO = false;
#endif
if ( useVAO )
SetVertexDeclaration( op.vertexData.vertexDeclaration, op.vertexData.vertexBufferBinding );
foreach ( var elem in decl )
{
var elemIndex = elem.Index;
var elemSource = elem.Source;
var elemType = elem.Type;
if ( !op.vertexData.vertexBufferBinding.IsBufferBound( elemSource ) )
{
continue; //skip unbound elements
}
GLES2Config.GlCheckError( this );
HardwareVertexBuffer vertexBuffer = op.vertexData.vertexBufferBinding.GetBuffer( elemSource );
this.BindGLBuffer( GLenum.ArrayBuffer, ( vertexBuffer as GLES2HardwareVertexBuffer ).GLBufferID );
if ( !useVAO || ( useVAO && null != gles2decl && !gles2decl.IsInitialized ) )
{
bufferData = elem.Offset;
VertexElementSemantic sem = elem.Semantic;
var typeCount = VertexElement.GetTypeCount( elemType );
bool normalized = false;
int attrib = 0;
if ( op.vertexData.vertexStart != 0 )
{
bufferData = bufferData + op.vertexData.vertexStart & vertexBuffer.VertexSize;
}
if ( Capabilities.HasCapability( Graphics.Capabilities.SeperateShaderObjects ) )
{
GLSLESProgramPipeline programPipeline = GLSLESProgramPipelineManager.Instance.ActiveProgramPipeline;
if ( !programPipeline.IsAttributeValid( sem, elemIndex ) )
{
continue;
}
attrib = programPipeline.GetAttributeIndex( sem, elemIndex );
}
else
{
GLSLESLinkProgram linkProgram = GLSLESLinkProgramManager.Instance.ActiveLinkProgram;
if ( null == linkProgram || !linkProgram.IsAttributeValid( sem, elemIndex ) )
{
continue;
}
attrib = linkProgram.GetAttributeIndex( sem, elemIndex );
}
switch ( elem.Type )
{
case VertexElementType.Color:
case VertexElementType.Color_ARGB:
case VertexElementType.Color_ABGR:
//Because GL takes these as a sequence of single unsigned bytes, count needs to be 4
//VertexElement.GetTypeCount treams them as 1 (RGBA)
//Also need to normalize the fixed-point data
typeCount = 4;
normalized = true;
break;
default:
break;
}
GL.VertexAttribPointer( attrib, typeCount, GLES2HardwareBufferManager.GetGLType( elemType ), normalized, vertexBuffer.VertexSize, ref bufferData );
GLES2Config.GlCheckError( this );
GL.EnableVertexAttribArray( attrib );
GLES2Config.GlCheckError( this );
this.renderAttribsBound.Add( attrib );
}
}
//Find the correct type to render
GLenum primType = GLenum.TriangleFan;
switch ( op.operationType )
{
case OperationType.PointList:
primType = GLenum.Points;
break;
case OperationType.LineList:
primType = GLenum.Lines;
break;
case OperationType.LineStrip:
primType = GLenum.LineStrip;
break;
case OperationType.TriangleList:
primType = GLenum.Triangles;
break;
case OperationType.TriangleStrip:
primType = GLenum.TriangleStrip;
break;
case OperationType.TriangleFan:
primType = GLenum.TriangleFan;
break;
}
if ( op.useIndices )
{
// If we are using VAO's then only bind the buffer the first time through. Otherwise, always bind.
if (!useVAO || ( useVAO && null != gles2decl && !gles2decl.IsInitialized ) )
this.BindGLBuffer( GLenum.ElementArrayBuffer, ((GLES2HardwareIndexBuffer )op.indexData.indexBuffer).BufferID );
bufferData = op.indexData.indexStart * op.indexData.indexBuffer.IndexSize;
GLenum indexType = ( op.indexData.indexBuffer.Type == IndexType.Size16 ) ? GLenum.UnsignedShort : GLenum.UnsignedInt;
do
{
//Update derived depth bias
if ( derivedDepthBias && currentPassIterationCount > 0 )
{
this.SetDepthBias( derivedDepthBiasBase + derivedDepthBiasMultiplier * currentPassIterationNum, derivedDepthBiasSlopeScale );
}
GLES2Config.GlCheckError( this );
GL.DrawElements( ( this.polygonMode == GLenum.PolygonOffsetFill ) ? primType : this.polygonMode, op.indexData.indexCount, indexType, ref bufferData );
GLES2Config.GlCheckError( this, false );
} while ( UpdatePassIterationRenderState() );
}
else
{
do
{
//Update derived depth bias
if ( derivedDepthBias && currentPassIterationNum > 0 )
{
this.SetDepthBias( derivedDepthBiasBase + derivedDepthBiasMultiplier * currentPassIterationNum, derivedDepthBiasSlopeScale );
}
GLES2Config.GlCheckError( this );
//GL.DrawArrays( ( this.polygonMode == GLenum.PolygonOffsetFill ) ? primType : this.polygonMode, 0, op.vertexData.vertexCount );
GL.DrawArrays( All.Triangles, 0, op.vertexData.vertexCount );
GLES2Config.GlCheckError( this, false );
} while ( UpdatePassIterationRenderState() );
}
//Unbind all attributes
foreach ( var ai in this.renderAttribsBound )
{
GL.DisableVertexAttribArray( ai );
GLES2Config.GlCheckError( this );
}
this.renderAttribsBound.Clear();
}
/// <summary>
/// Gets the render operation for this shadow renderable.
/// </summary>
/// <param name="op"></param>
public void GetRenderOperation(RenderOperation op)
{
// TODO: Ensure all other places throughout the engine set these properly
op.indexData = renderOp.indexData;
op.useIndices = true;
op.operationType = OperationType.TriangleList;
op.vertexData = renderOp.vertexData;
}
public override void Render( RenderOperation op )
{
// Exit immediately if there is nothing to render
// This caused a problem on FireGL 8800
if ( op.vertexData.vertexCount == 0 )
{
return;
}
base.Render( op );
// To think about: possibly remove setVertexDeclaration and
// setVertexBufferBinding from RenderSystem since the sequence is
// a bit too D3D9-specific?
VertexDeclaration = op.vertexData.vertexDeclaration;
// TODO: the false parameter has to be carried inside op as var
SetVertexBufferBinding(op.vertexData.vertexBufferBinding, op.numberOfInstances, false, op.useIndices);
// Determine rendering operation
var primType = PrimitiveType.TriangleList;
var lprimCount = op.vertexData.vertexCount;
var cnt = op.useIndices && primType != PrimitiveType.PointList ? op.indexData.indexCount : op.vertexData.vertexCount;
switch ( op.operationType )
{
case OperationType.TriangleList:
primType = PrimitiveType.TriangleList;
lprimCount = cnt / 3;
break;
case OperationType.TriangleStrip:
primType = PrimitiveType.TriangleStrip;
lprimCount = cnt - 2;
break;
case OperationType.TriangleFan:
primType = PrimitiveType.TriangleFan;
lprimCount = cnt - 2;
break;
case OperationType.PointList:
primType = PrimitiveType.PointList;
lprimCount = cnt;
break;
case OperationType.LineList:
primType = PrimitiveType.LineList;
lprimCount = cnt / 2;
break;
case OperationType.LineStrip:
primType = PrimitiveType.LineStrip;
lprimCount = cnt - 1;
break;
} // switch(primType)
if (lprimCount == 0)
return;
if (op.useIndices)
{
var d3DIdxBuf = (D3DHardwareIndexBuffer)op.indexData.indexBuffer;
ActiveD3D9Device.Indices = d3DIdxBuf.D3DIndexBuffer;
do
{
// Update derived depth bias
if (derivedDepthBias && currentPassIterationNum > 0)
{
SetDepthBias(derivedDepthBiasBase +
derivedDepthBiasMultiplier * currentPassIterationNum,
derivedDepthBiasSlopeScale);
}
// draw the indexed primitives
ActiveD3D9Device.DrawIndexedPrimitives(primType,
op.vertexData.vertexStart,
0,
op.vertexData.vertexCount,
op.indexData.indexStart,
lprimCount);
} while (UpdatePassIterationRenderState());
}
else
{
// nfz: gpu_iterate
do
{
// Update derived depth bias
if (derivedDepthBias && currentPassIterationNum > 0)
{
SetDepthBias(derivedDepthBiasBase +
derivedDepthBiasMultiplier * currentPassIterationNum,
derivedDepthBiasSlopeScale);
}
// Unindexed, a little simpler!
ActiveD3D9Device.DrawPrimitives(primType, op.vertexData.vertexStart, lprimCount);
} while (UpdatePassIterationRenderState());
}
}
/// <summary>
/// Class level dispose method
/// </summary>
/// <remarks>
/// When implementing this method in an inherited class the following template should be used;
/// protected override void dispose( bool disposeManagedResources )
/// {
/// if ( !isDisposed )
/// {
/// if ( disposeManagedResources )
/// {
/// // Dispose managed resources.
/// }
///
/// // There are no unmanaged resources to release, but
/// // if we add them, they need to be released here.
/// }
///
/// // If it is available, make the call to the
/// // base class's Dispose(Boolean) method
/// base.dispose( disposeManagedResources );
/// }
/// </remarks>
/// <param name="disposeManagedResources">True if Unmanaged resources should be released.</param>
protected override void dispose( bool disposeManagedResources )
{
if ( !IsDisposed )
{
if ( disposeManagedResources )
{
// Dispose managed resources.
if ( renderOperation != null )
{
if (!renderOperation.IsDisposed)
renderOperation.Dispose();
renderOperation = null;
}
}
// There are no unmanaged resources to release, but
// if we add them, they need to be released here.
}
base.dispose(disposeManagedResources);
}
/// <summary>
/// Internal constructor, only allows creation of StitchRenderables within the scene manager.
/// </summary>
internal StitchRenderable(TerrainPatch terrainPatch, VertexData vertexData, IndexData indexData,
int numSamples, int southMetersPerSample, int eastMetersPerSample)
{
renderDetail = SceneDetailLevel.Solid;
parent = terrainPatch;
renderOp = new RenderOperation();
renderOp.operationType = OperationType.TriangleList;
renderOp.useIndices = true;
renderOp.vertexData = vertexData;
renderOp.indexData = indexData;
isVisible = true;
this.numSamples = numSamples;
this.southMetersPerSample = southMetersPerSample;
this.eastMetersPerSample = eastMetersPerSample;
}
/// <summary>
/// Fills a RenderOperation structure required to render this mesh.
/// </summary>
/// <param name="op">Reference to a RenderOperation structure to populate.</param>
/// <param name="lodIndex">The index of the LOD to use.</param>
public void GetRenderOperation( RenderOperation op, int lodIndex )
{
// meshes always use indices
op.useIndices = true;
// use lod face list if requested, else pass the normal face list
if ( lodIndex > 0 && ( lodIndex - 1 ) < this.lodFaceList.Count )
{
// Use the set of indices defined for this LOD level
op.indexData = this.lodFaceList[ lodIndex - 1 ];
}
else
{
op.indexData = this.indexData;
}
// set the operation type
op.operationType = this.operationType;
// set the vertex data correctly
op.vertexData = this.useSharedVertices ? this.parent.SharedVertexData : this.vertexData;
}
/// <summary>
///
/// </summary>
/// <param name="op"></param>
public void GetRenderOperation(RenderOperation op)
{
Debug.Assert(renderOp.vertexData != null, "attempting to render stitch with no vertexData");
Debug.Assert(renderOp.indexData != null, "attempting to render stitch with no indexData");
op.useIndices = this.renderOp.useIndices;
op.operationType = this.renderOp.operationType;
op.vertexData = this.renderOp.vertexData;
op.indexData = this.renderOp.indexData;
}
/// <summary>
/// Manual rendering method, for advanced users only.
/// </summary>
/// <remarks>
/// This method allows you to send rendering commands through the pipeline on
/// demand, bypassing any normal world processing. You should only use this if you
/// really know what you're doing; the engine does lots of things for you that you really should
/// let it do. However, there are times where it may be useful to have this manual interface,
/// for example overlaying something on top of the scene.
/// <p/>
/// Because this is an instant rendering method, timing is important. The best
/// time to call it is from a RenderTarget event handler.
/// <p/>
/// Don't call this method a lot, it's designed for rare (1 or 2 times per frame) use.
/// Calling it regularly per frame will cause frame rate drops!
/// </remarks>
/// <param name="op">A RenderOperation object describing the rendering op.</param>
/// <param name="pass">The Pass to use for this render.</param>
/// <param name="vp">Reference to the viewport to render to.</param>
/// <param name="worldMatrix">The transform to apply from object to world space.</param>
/// <param name="viewMatrix">The transform to apply from object to view space.</param>
/// <param name="projMatrix">The transform to apply from view to screen space.</param>
/// <param name="doBeginEndFrame">
/// If true, BeginFrame() and EndFrame() are called, otherwise not.
/// You should leave this as false if you are calling this within the main render loop.
/// </param>
public virtual void ManualRender( RenderOperation op,
Pass pass,
Viewport vp,
Matrix4 worldMatrix,
Matrix4 viewMatrix,
Matrix4 projMatrix,
bool doBeginEndFrame )
{
// configure all necessary parameters
this.targetRenderSystem.Viewport = vp;
this.targetRenderSystem.WorldMatrix = worldMatrix;
this.targetRenderSystem.ViewMatrix = viewMatrix;
this.targetRenderSystem.ProjectionMatrix = projMatrix;
if ( doBeginEndFrame )
{
this.targetRenderSystem.BeginFrame();
}
// set the pass and render the object
this.SetPass( pass );
this.targetRenderSystem.Render( op );
if ( doBeginEndFrame )
{
this.targetRenderSystem.EndFrame();
}
}
/// <summary>
/// Generates the indexes required to render a shadow volume into the
/// index buffer which is passed in, and updates shadow renderables to use it.
/// </summary>
/// <param name="edgeData">The edge information to use.</param>
/// <param name="indexBuffer">The buffer into which to write data into; current
/// contents are assumed to be discardable.</param>
/// <param name="light">The light, mainly for type info as silhouette calculations
/// should already have been done in <see cref="UpdateEdgeListLightFacing"/></param>
/// <param name="shadowRenderables">A list of shadow renderables which has
/// already been constructed but will need populating with details of
/// the index ranges to be used.</param>
/// <param name="flags">Additional controller flags, see <see cref="ShadowRenderableFlags"/>.</param>
protected virtual void GenerateShadowVolume(EdgeData edgeData, HardwareIndexBuffer indexBuffer, Light light,
ShadowRenderableList shadowRenderables, int flags)
{
// Edge groups should be 1:1 with shadow renderables
Debug.Assert(edgeData.edgeGroups.Count == shadowRenderables.Count);
LightType lightType = light.Type;
bool extrudeToInfinity = (flags & (int)ShadowRenderableFlags.ExtrudeToInfinity) > 0;
// Lock index buffer for writing
IntPtr idxPtr = indexBuffer.Lock(BufferLocking.Discard);
int indexStart = 0;
unsafe {
// TODO: Will currently cause an overflow for 32 bit indices, revisit
short *pIdx = (short *)idxPtr.ToPointer();
int count = 0;
// Iterate over the groups and form renderables for each based on their
// lightFacing
for (int groupCount = 0; groupCount < edgeData.edgeGroups.Count; groupCount++)
{
EdgeData.EdgeGroup eg = (EdgeData.EdgeGroup)edgeData.edgeGroups[groupCount];
ShadowRenderable si = (ShadowRenderable)shadowRenderables[groupCount];
RenderOperation lightShadOp = null;
// Initialise the index bounds for this shadow renderable
RenderOperation shadOp = si.GetRenderOperationForUpdate();
shadOp.indexData.indexCount = 0;
shadOp.indexData.indexStart = indexStart;
// original number of verts (without extruded copy)
int originalVertexCount = eg.vertexData.vertexCount;
bool firstDarkCapTri = true;
int darkCapStart = 0;
for (int edgeCount = 0; edgeCount < eg.edges.Count; edgeCount++)
{
EdgeData.Edge edge = (EdgeData.Edge)eg.edges[edgeCount];
EdgeData.Triangle t1 = (EdgeData.Triangle)edgeData.triangles[edge.triIndex[0]];
EdgeData.Triangle t2 =
edge.isDegenerate ? (EdgeData.Triangle)edgeData.triangles[edge.triIndex[0]] : (EdgeData.Triangle)edgeData.triangles[edge.triIndex[1]];
if (t1.lightFacing && (edge.isDegenerate || !t2.lightFacing))
{
/* Silhouette edge, first tri facing the light
* Also covers degenerate tris where only tri 1 is valid
* Remember verts run anticlockwise along the edge from
* tri 0 so to point shadow volume tris outward, light cap
* indexes have to be backwards
*
* We emit 2 tris if light is a point light, 1 if light
* is directional, because directional lights cause all
* points to converge to a single point at infinity.
*
* First side tri = near1, near0, far0
* Second tri = far0, far1, near1
*
* 'far' indexes are 'near' index + originalVertexCount
* because 'far' verts are in the second half of the
* buffer
*/
pIdx[count++] = (short)edge.vertIndex[1];
pIdx[count++] = (short)edge.vertIndex[0];
pIdx[count++] = (short)(edge.vertIndex[0] + originalVertexCount);
shadOp.indexData.indexCount += 3;
if (!(lightType == LightType.Directional && extrudeToInfinity))
{
// additional tri to make quad
pIdx[count++] = (short)(edge.vertIndex[0] + originalVertexCount);
pIdx[count++] = (short)(edge.vertIndex[1] + originalVertexCount);
pIdx[count++] = (short)edge.vertIndex[1];
shadOp.indexData.indexCount += 3;
}
// Do dark cap tri
// Use McGuire et al method, a triangle fan covering all silhouette
// edges and one point (taken from the initial tri)
if ((flags & (int)ShadowRenderableFlags.IncludeDarkCap) > 0)
{
if (firstDarkCapTri)
{
darkCapStart = edge.vertIndex[0] + originalVertexCount;
firstDarkCapTri = false;
}
else
{
pIdx[count++] = (short)darkCapStart;
pIdx[count++] = (short)(edge.vertIndex[1] + originalVertexCount);
pIdx[count++] = (short)(edge.vertIndex[0] + originalVertexCount);
shadOp.indexData.indexCount += 3;
}
}
}
else if (!t1.lightFacing && (edge.isDegenerate || t2.lightFacing))
{
// Silhouette edge, second tri facing the light
// Note edge indexes inverse of when t1 is light facing
pIdx[count++] = (short)edge.vertIndex[0];
pIdx[count++] = (short)edge.vertIndex[1];
pIdx[count++] = (short)(edge.vertIndex[1] + originalVertexCount);
shadOp.indexData.indexCount += 3;
if (!(lightType == LightType.Directional && extrudeToInfinity))
{
// additional tri to make quad
pIdx[count++] = (short)(edge.vertIndex[1] + originalVertexCount);
pIdx[count++] = (short)(edge.vertIndex[0] + originalVertexCount);
pIdx[count++] = (short)edge.vertIndex[0];
shadOp.indexData.indexCount += 3;
}
// Do dark cap tri
// Use McGuire et al method, a triangle fan covering all silhouette
// edges and one point (taken from the initial tri)
if ((flags & (int)ShadowRenderableFlags.IncludeDarkCap) > 0)
{
if (firstDarkCapTri)
{
darkCapStart = edge.vertIndex[1] + originalVertexCount;
firstDarkCapTri = false;
}
else
{
pIdx[count++] = (short)darkCapStart;
pIdx[count++] = (short)(edge.vertIndex[0] + originalVertexCount);
pIdx[count++] = (short)(edge.vertIndex[1] + originalVertexCount);
shadOp.indexData.indexCount += 3;
}
}
}
}
// Do light cap
if ((flags & (int)ShadowRenderableFlags.IncludeLightCap) > 0)
{
ShadowRenderable lightCapRend = null;
if (si.IsLightCapSeperate)
{
// separate light cap
lightCapRend = si.LightCapRenderable;
lightShadOp = lightCapRend.GetRenderOperationForUpdate();
lightShadOp.indexData.indexCount = 0;
// start indexes after the current total
// NB we don't update the total here since that's done below
lightShadOp.indexData.indexStart =
indexStart + shadOp.indexData.indexCount;
}
for (int triCount = 0; triCount < edgeData.triangles.Count; triCount++)
{
EdgeData.Triangle t = (EdgeData.Triangle)edgeData.triangles[triCount];
// Light facing, and vertex set matches
if (t.lightFacing && t.vertexSet == eg.vertexSet)
{
pIdx[count++] = (short)t.vertIndex[0];
pIdx[count++] = (short)t.vertIndex[1];
pIdx[count++] = (short)t.vertIndex[2];
if (lightShadOp != null)
{
lightShadOp.indexData.indexCount += 3;
}
else
{
shadOp.indexData.indexCount += 3;
}
}
}
}
// update next indexStart (all renderables sharing the buffer)
indexStart += shadOp.indexData.indexCount;
// add on the light cap too
if (lightShadOp != null)
{
indexStart += lightShadOp.indexData.indexCount;
}
}
}
// Unlock index buffer
indexBuffer.Unlock();
Debug.Assert(indexStart <= indexBuffer.IndexCount, "Index buffer overrun while generating shadow volume!");
}
/// <summary>
///
/// </summary>
/// <param name="disposeManagedResources"></param>
protected override void dispose( bool disposeManagedResources )
{
if ( !this.IsDisposed )
{
if ( disposeManagedResources )
{
this.ClearScene();
this.RemoveAllCameras();
if ( op != null )
{
if ( !op.IsDisposed )
op.Dispose();
op = null;
}
if ( this.autoParamDataSource != null )
{
if ( !this.autoParamDataSource.IsDisposed )
this.autoParamDataSource.Dispose();
this.autoParamDataSource = null;
}
if ( this.rootSceneNode != null )
{
if ( !this.rootSceneNode.IsDisposed )
this.rootSceneNode.Dispose();
this.rootSceneNode = null;
}
}
}
base.dispose( disposeManagedResources );
}
private void Init(int metersPerSample)
{
// set up the material
normalMaterial = WorldManager.Instance.DefaultTerrainMaterial;
material = normalMaterial;
// create the render operation
renderOp = new RenderOperation();
renderOp.operationType = OperationType.TriangleList;
renderOp.useIndices = true;
location = tile.Location;
// ask the world manager what LOD we should use
this.metersPerSample = metersPerSample;
targetMetersPerSample = metersPerSample;
// figure out the number of actual samples we need in the tile based on the size
// and level of detail
numSamples = tile.Size / metersPerSample;
// allocate the storage for the height map
heightMap = new float[numSamples * numSamples];
return;
}
