1HEADmaster

1 files changed, 1990 insertions, 0 deletions

diff --git a/studiorender/r_studiodecal.cpp b/studiorender/r_studiodecal.cpp
new file mode 100644
index 0000000..52ff350
--- /dev/null
+++ b/studiorender/r_studiodecal.cpp
@@ -0,0 +1,1990 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//===========================================================================//
+
+#include "studiorender.h"
+#include "studiorendercontext.h"
+#include "materialsystem/imaterialsystem.h"
+#include "materialsystem/imaterialsystemhardwareconfig.h"
+#include "materialsystem/imesh.h"
+#include "materialsystem/imaterial.h"
+#include "mathlib/mathlib.h"
+#include "optimize.h"
+#include "cmodel.h"
+#include "materialsystem/imaterialvar.h"
+#include "convar.h"
+
+#include "tier0/vprof.h"
+#include "tier0/minidump.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+
+static int g_nTotalDecalVerts;
+
+//-----------------------------------------------------------------------------
+// Decal triangle clip flags
+//-----------------------------------------------------------------------------
+enum
+{
+	DECAL_CLIP_MINUSU	= 0x1,
+	DECAL_CLIP_MINUSV	= 0x2,
+	DECAL_CLIP_PLUSU	= 0x4,
+	DECAL_CLIP_PLUSV	= 0x8,
+};
+
+
+#define MAX_DECAL_INDICES_PER_MODEL 2048
+
+
+//-----------------------------------------------------------------------------
+// Triangle clipping state
+//-----------------------------------------------------------------------------
+struct DecalClipState_t
+{
+	// Number of used vertices
+	int m_VertCount;
+
+	// Indices into the clip verts array of the used vertices
+	int m_Indices[2][7];
+
+	// Helps us avoid copying the m_Indices array by using double-buffering
+	bool m_Pass;
+
+	// Add vertices we've started with and had to generate due to clipping
+	int m_ClipVertCount;
+	DecalVertex_t	m_ClipVerts[16];
+
+	// Union of the decal triangle clip flags above for each vert
+	int m_ClipFlags[16];
+
+	DecalClipState_t() {}
+
+private:
+	// Copy constructors are not allowed
+	DecalClipState_t( const DecalClipState_t& src );
+};
+
+
+//-----------------------------------------------------------------------------
+//
+// Lovely decal code begins here... ABANDON ALL HOPE YE WHO ENTER!!!
+//
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// Functions to make vertex opaque
+//-----------------------------------------------------------------------------
+
+#ifdef COMPACT_DECAL_VERT
+#define GetVecTexCoord( v ) (v.operator Vector2D())
+#define GetVecNormal( v ) (v.operator Vector())
+#else
+#define GetVecTexCoord( v ) v
+#define GetVecNormal( v ) v
+#endif
+
+
+//-----------------------------------------------------------------------------
+// Remove decal from LRU
+//-----------------------------------------------------------------------------
+void CStudioRender::RemoveDecalListFromLRU( StudioDecalHandle_t h )
+{
+	DecalLRUListIndex_t i, next;
+	for ( i = m_DecalLRU.Head(); i != m_DecalLRU.InvalidIndex(); i = next )
+	{
+		next = m_DecalLRU.Next(i);
+		if ( m_DecalLRU[i].m_hDecalHandle == h )
+		{
+			m_DecalLRU.Remove( i );
+		}
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// Create, destroy list of decals for a particular model
+//-----------------------------------------------------------------------------
+StudioDecalHandle_t CStudioRender::CreateDecalList( studiohwdata_t *pHardwareData )
+{
+	if ( !pHardwareData || pHardwareData->m_NumLODs <= 0 )
+		return STUDIORENDER_DECAL_INVALID;
+
+	// NOTE: This function is called directly without queueing 
+	m_DecalMutex.Lock();
+	int handle = m_DecalList.AddToTail();
+	m_DecalMutex.Unlock();
+
+	m_DecalList[handle].m_pHardwareData = pHardwareData;
+	m_DecalList[handle].m_pLod = new DecalLod_t[pHardwareData->m_NumLODs];
+	m_DecalList[handle].m_nLods = pHardwareData->m_NumLODs;
+
+	for (int i = 0; i < pHardwareData->m_NumLODs; i++)
+	{
+		m_DecalList[handle].m_pLod[i].m_FirstMaterial = m_DecalMaterial.InvalidIndex();
+	}
+
+	return (StudioDecalHandle_t)handle;
+}
+
+void CStudioRender::DestroyDecalList( StudioDecalHandle_t hDecal )
+{
+	if ( hDecal == STUDIORENDER_DECAL_INVALID )
+		return;
+
+	RemoveDecalListFromLRU( hDecal );
+
+	int h = (int)hDecal;
+	// Clean up 
+	for (int i = 0; i < m_DecalList[h].m_nLods; i++ )
+	{
+		// Blat out all geometry associated with all materials
+		unsigned short mat = m_DecalList[h].m_pLod[i].m_FirstMaterial;
+		unsigned short next;
+		while (mat != m_DecalMaterial.InvalidIndex())
+		{
+			next = m_DecalMaterial.Next(mat);
+
+			g_nTotalDecalVerts -= m_DecalMaterial[mat].m_Vertices.Count();
+
+			m_DecalMaterial.Free(mat);
+
+			mat = next;
+		}
+	}
+
+	delete[] m_DecalList[h].m_pLod;
+	m_DecalList[h].m_pLod = NULL;
+
+	m_DecalMutex.Lock();
+	m_DecalList.Remove( h );
+	m_DecalMutex.Unlock();
+}
+
+
+//-----------------------------------------------------------------------------
+// Transformation/Rotation for decals
+//-----------------------------------------------------------------------------
+#define FRONTFACING_EPS	0.1f
+
+inline bool CStudioRender::IsFrontFacing( const Vector * pnorm, const mstudioboneweight_t * pboneweight )
+{
+	// NOTE: This only works to rotate normals if there's no scale in the
+	// pose to world transforms. If we ever add scale, we'll need to
+	// multiply by the inverse transpose of the pose to decal
+
+	float z;
+	if (pboneweight->numbones == 1)
+	{
+		z = DotProduct( pnorm->Base(), m_PoseToDecal[(unsigned)pboneweight->bone[0]][2] );
+	}
+	else
+	{
+		float zbone;
+
+		z = 0;
+		for (int i = 0; i < pboneweight->numbones; i++)
+		{
+			zbone = DotProduct( pnorm->Base(), m_PoseToDecal[(unsigned)pboneweight->bone[i]][2] );
+			z += zbone * pboneweight->weight[i];
+		}
+	}
+
+	return ( z >= FRONTFACING_EPS );
+}
+
+inline bool CStudioRender::TransformToDecalSpace( DecalBuildInfo_t& build, const Vector& pos, 
+						mstudioboneweight_t *pboneweight, Vector2D& uv )
+{
+	// NOTE: This only works to rotate normals if there's no scale in the
+	// pose to world transforms. If we ever add scale, we'll need to
+	// multiply by the inverse transpose of the pose to world
+
+	if (pboneweight->numbones == 1)
+	{
+		uv.x = DotProduct( pos.Base(), m_PoseToDecal[(unsigned)pboneweight->bone[0]][0] ) + 
+			m_PoseToDecal[(unsigned)pboneweight->bone[0]][0][3];
+		uv.y = DotProduct( pos.Base(), m_PoseToDecal[(unsigned)pboneweight->bone[0]][1] ) + 
+			m_PoseToDecal[(unsigned)pboneweight->bone[0]][1][3];
+	}
+	else
+	{
+		uv.x = uv.y = 0;
+		float ubone, vbone;
+		for (int i = 0; i < pboneweight->numbones; i++)
+		{
+			ubone = DotProduct( pos.Base(), m_PoseToDecal[(unsigned)pboneweight->bone[i]][0] ) + 
+				m_PoseToDecal[(unsigned)pboneweight->bone[i]][0][3];
+			vbone = DotProduct( pos.Base(), m_PoseToDecal[(unsigned)pboneweight->bone[i]][1] ) + 
+				m_PoseToDecal[(unsigned)pboneweight->bone[i]][1][3];
+
+			uv.x += ubone * pboneweight->weight[i];
+			uv.y += vbone * pboneweight->weight[i];
+		}
+	}
+
+	if (!build.m_NoPokeThru)
+		return true;
+
+	// No poke thru? do culling....
+	float z;
+	if (pboneweight->numbones == 1)
+	{
+		z = DotProduct( pos.Base(), m_PoseToDecal[(unsigned)pboneweight->bone[0]][2] ) + 
+			m_PoseToDecal[(unsigned)pboneweight->bone[0]][2][3];
+	}
+	else
+	{
+		z = 0;
+		float zbone;
+		for (int i = 0; i < pboneweight->numbones; i++)
+		{
+			zbone = DotProduct( pos.Base(), m_PoseToDecal[(unsigned)pboneweight->bone[i]][2] ) + 
+				m_PoseToDecal[(unsigned)pboneweight->bone[i]][2][3];
+			z += zbone * pboneweight->weight[i];
+		}
+	}
+
+	return (fabs(z) < build.m_Radius );
+}
+
+
+//-----------------------------------------------------------------------------
+// Projects a decal onto a mesh
+//-----------------------------------------------------------------------------
+bool CStudioRender::ProjectDecalOntoMesh( DecalBuildInfo_t& build, DecalBuildVertexInfo_t* pVertexInfo, mstudiomesh_t *pMesh )
+{
+	float invRadius = (build.m_Radius != 0.0f) ? 1.0f / build.m_Radius : 1.0f;
+
+	const mstudio_meshvertexdata_t	*vertData		= pMesh->GetVertexData( build.m_pStudioHdr );
+	const thinModelVertices_t		*thinVertData	= NULL;
+
+	if ( !vertData )
+	{
+		// For most models (everything that's not got flex data), the vertex data is 'thinned' on load to save memory
+		thinVertData = pMesh->GetThinVertexData( build.m_pStudioHdr );
+		if ( !thinVertData )
+			return false;
+	}
+
+	// For this to work, the plane and intercept must have been transformed
+	// into pose space. Also, we'll not be bothering with flexes.
+	for ( int j=0; j < pMesh->numvertices; ++j )
+	{
+		mstudioboneweight_t	localBoneWeights;
+		Vector				localPosition;
+		Vector				localNormal;
+		Vector				* vecPosition;
+		Vector				* vecNormal;
+		mstudioboneweight_t	* boneWeights;
+
+		if ( vertData )
+		{
+			mstudiovertex_t &vert = *vertData->Vertex( j );
+			vecPosition = &vert.m_vecPosition;
+			vecNormal   = &vert.m_vecNormal;
+			boneWeights = &vert.m_BoneWeights;
+		}
+		else
+		{
+			thinVertData->GetMeshPosition( pMesh, j, &localPosition );
+			vecPosition = &localPosition;
+			thinVertData->GetMeshNormal( pMesh, j, &localNormal );
+			vecNormal = &localNormal;
+			thinVertData->GetMeshBoneWeights( pMesh, j, &localBoneWeights );
+			boneWeights = &localBoneWeights;
+		}
+
+		// No decal vertex yet...
+		pVertexInfo[j].m_VertexIndex = 0xFFFF;
+		pVertexInfo[j].m_UniqueID = 0xFF;
+		pVertexInfo[j].m_Flags = 0;
+
+		// We need to know if the normal is pointing in the negative direction
+		// if so, blow off all triangles connected to that vertex.
+		if ( !IsFrontFacing( vecNormal, boneWeights ) )
+			continue;
+
+		pVertexInfo[j].m_Flags |= DecalBuildVertexInfo_t::FRONT_FACING;
+
+		bool inValidArea = TransformToDecalSpace( build, *vecPosition, boneWeights, pVertexInfo[j].m_UV );
+		pVertexInfo[j].m_Flags |= ( inValidArea << 1 );
+
+		pVertexInfo[j].m_UV *= invRadius * 0.5f;
+		pVertexInfo[j].m_UV[0] += 0.5f;
+		pVertexInfo[j].m_UV[1] += 0.5f;
+	}
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Computes clip flags
+//-----------------------------------------------------------------------------
+inline int ComputeClipFlags( Vector2D const& uv )
+{
+	// Otherwise we gotta do the test
+	int flags = 0;
+
+	if (uv.x < 0.0f)
+		flags |= DECAL_CLIP_MINUSU;
+	else if (uv.x > 1.0f)
+		flags |= DECAL_CLIP_PLUSU;
+
+	if (uv.y < 0.0f)
+		flags |= DECAL_CLIP_MINUSV;
+	else if (uv.y > 1.0f )
+		flags |= DECAL_CLIP_PLUSV;
+
+	return flags;
+}
+
+inline int CStudioRender::ComputeClipFlags( DecalBuildVertexInfo_t* pVertexInfo, int i )
+{
+	return ::ComputeClipFlags( pVertexInfo[i].m_UV );
+}
+
+
+//-----------------------------------------------------------------------------
+// Creates a new vertex where the edge intersects the plane
+//-----------------------------------------------------------------------------
+static int IntersectPlane( DecalClipState_t& state, int start, int end, 
+						    int normalInd, float val )
+{
+	DecalVertex_t& startVert = state.m_ClipVerts[start];
+	DecalVertex_t& endVert = state.m_ClipVerts[end];
+
+	Vector2D dir;
+	Vector2DSubtract( endVert.m_TexCoord, startVert.m_TexCoord, dir );
+	Assert( dir[normalInd] != 0.0f );
+	float t = (val - GetVecTexCoord( startVert.m_TexCoord )[normalInd]) / dir[normalInd];
+				 
+	// Allocate a clipped vertex
+	DecalVertex_t& out = state.m_ClipVerts[state.m_ClipVertCount];
+	int newVert = state.m_ClipVertCount++;
+
+	// The clipped vertex has no analogue in the original mesh
+	out.m_MeshVertexIndex = 0xFFFF;
+	out.m_Mesh = 0xFFFF;
+	out.m_Model = ( sizeof(out.m_Model) == 1 ) ? 0xFF : 0xFFFF;
+	out.m_Body = ( sizeof(out.m_Body) == 1 ) ? 0xFF : 0xFFFF;
+
+	// Interpolate position
+	out.m_Position[0] = startVert.m_Position[0] * (1.0 - t) + endVert.m_Position[0] * t;
+	out.m_Position[1] = startVert.m_Position[1] * (1.0 - t) + endVert.m_Position[1] * t;
+	out.m_Position[2] = startVert.m_Position[2] * (1.0 - t) + endVert.m_Position[2] * t;
+
+	// Interpolate normal
+	Vector vNormal;
+	// FIXME: this is a bug (it's using position data to compute interpolated normals!)... not seeing any obvious artifacts, though
+	vNormal[0] = startVert.m_Position[0] * (1.0 - t) + endVert.m_Position[0] * t;
+	vNormal[1] = startVert.m_Position[1] * (1.0 - t) + endVert.m_Position[1] * t;
+	vNormal[2] = startVert.m_Position[2] * (1.0 - t) + endVert.m_Position[2] * t;
+	VectorNormalize( vNormal );
+	out.m_Normal = vNormal;
+
+	// Interpolate texture coord
+	Vector2D vTexCoord;
+	Vector2DLerp( GetVecTexCoord( startVert.m_TexCoord ), GetVecTexCoord( endVert.m_TexCoord ), t, vTexCoord );
+	out.m_TexCoord = vTexCoord;
+
+	// Compute the clip flags baby...
+	state.m_ClipFlags[newVert] = ComputeClipFlags( out.m_TexCoord );
+
+	return newVert;
+}
+
+//-----------------------------------------------------------------------------
+// Clips a triangle against a plane, use clip flags to speed it up
+//-----------------------------------------------------------------------------
+
+static void ClipTriangleAgainstPlane( DecalClipState_t& state, int normalInd, int flag, float val )
+{
+	// FIXME: Could compute the & of all the clip flags of all the verts
+	// as we go through the loop to do another early out
+
+	// Ye Olde Sutherland-Hodgman clipping algorithm
+	int outVertCount = 0;
+	int start = state.m_Indices[state.m_Pass][state.m_VertCount - 1];
+	bool startInside = (state.m_ClipFlags[start] & flag) == 0;
+	for (int i = 0; i < state.m_VertCount; ++i)
+	{
+		int end = state.m_Indices[state.m_Pass][i];
+
+		bool endInside = (state.m_ClipFlags[end] & flag) == 0;
+		if (endInside)
+		{
+			if (!startInside)
+			{
+				int clipVert = IntersectPlane( state, start, end, normalInd, val );
+				state.m_Indices[!state.m_Pass][outVertCount++] = clipVert;
+			}
+			state.m_Indices[!state.m_Pass][outVertCount++] = end;
+		}
+		else
+		{
+			if (startInside)
+			{
+				int clipVert = IntersectPlane( state, start, end, normalInd, val );
+				state.m_Indices[!state.m_Pass][outVertCount++] = clipVert;
+			}
+		}
+		start = end;
+		startInside = endInside;
+	}
+
+	state.m_Pass = !state.m_Pass;
+	state.m_VertCount = outVertCount;
+}
+
+
+//-----------------------------------------------------------------------------
+// Converts a mesh index to a DecalVertex_t
+//-----------------------------------------------------------------------------
+void CStudioRender::ConvertMeshVertexToDecalVertex( DecalBuildInfo_t& build, 
+	int meshIndex, DecalVertex_t& decalVertex, int nGroupIndex )
+{
+	// Copy over the data;
+	// get the texture coords from the decal planar projection
+
+	Assert( meshIndex < MAXSTUDIOVERTS );
+
+	if ( build.m_pMeshVertexData )
+	{
+		VectorCopy( *build.m_pMeshVertexData->Position( meshIndex ), decalVertex.m_Position );
+		VectorCopy( *build.m_pMeshVertexData->Normal( meshIndex ), GetVecNormal( decalVertex.m_Normal ) );	
+	}
+	else
+	{
+		// At this point in the code, we should definitely have either compressed or uncompressed vertex data
+		Assert( build.m_pMeshThinVertexData );
+		Vector position;
+		Vector normal;
+		build.m_pMeshThinVertexData->GetMeshPosition( build.m_pMesh, meshIndex, &position );
+		build.m_pMeshThinVertexData->GetMeshNormal( build.m_pMesh, meshIndex, &normal );
+		VectorCopy( position, decalVertex.m_Position );
+		VectorCopy( normal, GetVecNormal( decalVertex.m_Normal ) );	
+	}
+	Vector2DCopy( build.m_pVertexInfo[meshIndex].m_UV, GetVecTexCoord( decalVertex.m_TexCoord ) );
+	decalVertex.m_MeshVertexIndex = meshIndex;
+	decalVertex.m_Mesh = build.m_Mesh;
+	Assert( decalVertex.m_Mesh < 100 );
+	decalVertex.m_Model = build.m_Model;
+	decalVertex.m_Body = build.m_Body;
+	decalVertex.m_Group = build.m_Group;
+	decalVertex.m_GroupIndex = nGroupIndex;
+}
+
+
+//-----------------------------------------------------------------------------
+// Adds a vertex to the list of vertices for this material
+//-----------------------------------------------------------------------------
+inline unsigned short CStudioRender::AddVertexToDecal( DecalBuildInfo_t& build, int nMeshIndex, int nGroupIndex )
+{
+	DecalBuildVertexInfo_t* pVertexInfo = build.m_pVertexInfo;
+
+	// If we've never seen this vertex before, we need to add a new decal vert
+	if ( pVertexInfo[nMeshIndex].m_UniqueID != build.m_nGlobalMeshIndex )
+	{
+		pVertexInfo[nMeshIndex].m_UniqueID = build.m_nGlobalMeshIndex;
+		DecalVertexList_t& decalVertexList = build.m_pDecalMaterial->m_Vertices;
+
+		DecalVertexList_t::IndexType_t v;
+		v = decalVertexList.AddToTail();
+		g_nTotalDecalVerts++;
+
+		// Copy over the data;
+		ConvertMeshVertexToDecalVertex( build, nMeshIndex, build.m_pDecalMaterial->m_Vertices[v], nGroupIndex );
+
+#ifdef _DEBUG
+		// Make sure clipped vertices are in the right range...
+		if (build.m_UseClipVert)
+		{
+			Assert( (decalVertexList[v].m_TexCoord[0] >= -1e-3) && (decalVertexList[v].m_TexCoord[0] - 1.0f < 1e-3) );
+			Assert( (decalVertexList[v].m_TexCoord[1] >= -1e-3) && (decalVertexList[v].m_TexCoord[1] - 1.0f < 1e-3) );
+		}
+#endif
+
+		// Store off the index of this vertex so we can reference it again
+		pVertexInfo[nMeshIndex].m_VertexIndex = build.m_VertexCount;
+		++build.m_VertexCount;
+		if (build.m_FirstVertex == decalVertexList.InvalidIndex())
+		{
+			build.m_FirstVertex = v;
+		}
+	}
+
+	return pVertexInfo[nMeshIndex].m_VertexIndex;
+}
+
+
+//-----------------------------------------------------------------------------
+// Adds a vertex to the list of vertices for this material
+//-----------------------------------------------------------------------------
+inline unsigned short CStudioRender::AddVertexToDecal( DecalBuildInfo_t& build, DecalVertex_t& vert )
+{
+	// This creates a unique vertex
+	DecalVertexList_t& decalVertexList = build.m_pDecalMaterial->m_Vertices;
+
+	// Try to see if the clipped vertex already exists in our decal list...
+	// Only search for matches with verts appearing in the current decal
+	DecalVertexList_t::IndexType_t i;
+	unsigned short vertexCount = 0;
+	for ( i = build.m_FirstVertex; i != decalVertexList.InvalidIndex(); 
+		i = decalVertexList.Next(i), ++vertexCount )
+	{
+		// Only bother to check against clipped vertices
+		if ( decalVertexList[i].GetMesh( build.m_pStudioHdr ) )
+			continue;
+
+		// They must have the same position, and normal
+		// texcoord will fall right out if the positions match
+		Vector temp;
+		VectorSubtract( decalVertexList[i].m_Position, vert.m_Position, temp );
+		if ( (fabs(temp[0]) > 1e-3) || (fabs(temp[1]) > 1e-3) || (fabs(temp[2]) > 1e-3) )
+			continue;
+
+		VectorSubtract( decalVertexList[i].m_Normal, vert.m_Normal, temp );
+		if ( (fabs(temp[0]) > 1e-3) || (fabs(temp[1]) > 1e-3) || (fabs(temp[2]) > 1e-3) )
+			continue;
+
+		return vertexCount;
+	}
+
+	// This path is the path taken by clipped vertices
+	Assert( (vert.m_TexCoord[0] >= -1e-3) && (vert.m_TexCoord[0] - 1.0f < 1e-3) );
+	Assert( (vert.m_TexCoord[1] >= -1e-3) && (vert.m_TexCoord[1] - 1.0f < 1e-3) );
+
+	// Must create a new vertex...
+	DecalVertexList_t::IndexType_t idx = decalVertexList.AddToTail(vert);
+	g_nTotalDecalVerts++;
+	if (build.m_FirstVertex == decalVertexList.InvalidIndex())
+		build.m_FirstVertex = idx;
+	Assert( vertexCount == build.m_VertexCount );
+	return build.m_VertexCount++;
+}
+
+
+//-----------------------------------------------------------------------------
+// Adds the clipped triangle to the decal
+//-----------------------------------------------------------------------------
+void CStudioRender::AddClippedDecalToTriangle( DecalBuildInfo_t& build, DecalClipState_t& clipState )
+{
+	// FIXME: Clipped vertices will almost always be shared. We
+	// need a way of associating clipped vertices with edges so we can share
+	// the clipped vertices quickly
+	Assert( clipState.m_VertCount <= 7 );
+
+	// Yeah baby yeah!!	Add this sucka
+	int i;
+	unsigned short indices[7];
+	for ( i = 0; i < clipState.m_VertCount; ++i)
+	{
+		// First add the vertices
+		int vertIdx = clipState.m_Indices[clipState.m_Pass][i];
+		if (vertIdx < 3)
+		{
+			indices[i] = AddVertexToDecal( build, clipState.m_ClipVerts[vertIdx].m_MeshVertexIndex );
+		}
+		else
+		{
+			indices[i] = AddVertexToDecal( build, clipState.m_ClipVerts[vertIdx] );
+		}
+	}
+
+	// Add a trifan worth of triangles
+	for ( i = 1; i < clipState.m_VertCount - 1; ++i)
+	{
+		MEM_ALLOC_CREDIT();
+		build.m_pDecalMaterial->m_Indices.AddToTail( indices[0] );
+		build.m_pDecalMaterial->m_Indices.AddToTail( indices[i] );
+		build.m_pDecalMaterial->m_Indices.AddToTail( indices[i+1] );
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// Clips the triangle to +/- radius
+//-----------------------------------------------------------------------------
+bool CStudioRender::ClipDecal( DecalBuildInfo_t& build, int i1, int i2, int i3, int *pClipFlags )
+{
+	int i;
+
+	DecalClipState_t clipState;
+	clipState.m_VertCount = 3;
+	ConvertMeshVertexToDecalVertex( build, i1, clipState.m_ClipVerts[0] );
+	ConvertMeshVertexToDecalVertex( build, i2, clipState.m_ClipVerts[1] );
+	ConvertMeshVertexToDecalVertex( build, i3, clipState.m_ClipVerts[2] );
+	clipState.m_ClipVertCount = 3;
+
+	for ( i = 0; i < 3; ++i)
+	{
+		clipState.m_ClipFlags[i] = pClipFlags[i];
+		clipState.m_Indices[0][i] = i;
+	}
+	clipState.m_Pass = 0;
+
+	// Clip against each plane
+	ClipTriangleAgainstPlane( clipState, 0, DECAL_CLIP_MINUSU, 0.0f );
+	if (clipState.m_VertCount < 3)
+		return false;
+
+	ClipTriangleAgainstPlane( clipState, 0, DECAL_CLIP_PLUSU, 1.0f );
+	if (clipState.m_VertCount < 3)
+		return false;
+
+	ClipTriangleAgainstPlane( clipState, 1, DECAL_CLIP_MINUSV, 0.0f );
+	if (clipState.m_VertCount < 3)
+		return false;
+
+	ClipTriangleAgainstPlane( clipState, 1, DECAL_CLIP_PLUSV, 1.0f );
+	if (clipState.m_VertCount < 3)
+		return false;
+
+	// Only add the clipped decal to the triangle if it's one bone
+	// otherwise just return if it was clipped
+	if ( build.m_UseClipVert )
+	{
+		AddClippedDecalToTriangle( build, clipState );
+	}
+
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Adds a decal to a triangle, but only if it should
+//-----------------------------------------------------------------------------
+void CStudioRender::AddTriangleToDecal( DecalBuildInfo_t& build, int i1, int i2, int i3, int gi1, int gi2, int gi3 )
+{
+	DecalBuildVertexInfo_t* pVertexInfo = build.m_pVertexInfo;
+
+	// All must be front-facing for a decal to be added
+	// FIXME: Could make it work if not all are front-facing, need clipping for that
+	int nAllFrontFacing = pVertexInfo[i1].m_Flags & pVertexInfo[i2].m_Flags & pVertexInfo[i3].m_Flags;
+	if ( ( nAllFrontFacing & DecalBuildVertexInfo_t::FRONT_FACING ) == 0 )
+		return;
+
+	// This is used to prevent poke through; if the points are too far away
+	// from the contact point, then don't add the decal
+	int nAllNotInValidArea = pVertexInfo[i1].m_Flags | pVertexInfo[i2].m_Flags | pVertexInfo[i3].m_Flags;
+	if ( ( nAllNotInValidArea & DecalBuildVertexInfo_t::VALID_AREA ) == 0 )
+		return;
+
+	// Clip to +/- radius
+	int clipFlags[3];
+
+	clipFlags[0] = ComputeClipFlags( pVertexInfo, i1 );
+	clipFlags[1] = ComputeClipFlags( pVertexInfo, i2 );
+	clipFlags[2] = ComputeClipFlags( pVertexInfo, i3 );
+
+	// Cull... The result is non-zero if they're all outside the same plane
+	if ( (clipFlags[0] & (clipFlags[1] & clipFlags[2]) ) != 0)
+		return;
+
+	bool doClip = true;
+	
+	// Trivial accept for skinned polys... if even one vert is inside
+	// the draw region, accept
+	if ((!build.m_UseClipVert) && ( !clipFlags[0] || !clipFlags[1] || !clipFlags[2] ))
+	{
+		doClip = false;
+	}
+
+	// Trivial accept... no clip flags set means all in
+	// Don't clip if we have more than one bone... we'll need to do skinning
+	// and we can't clip the bone indices
+	// We *do* want to clip in the one bone case though; useful for large
+	// static props.
+	if ( doClip && ( clipFlags[0] || clipFlags[1] || clipFlags[2] ))
+	{
+		bool validTri = ClipDecal( build, i1, i2, i3, clipFlags );
+
+		// Don't add the triangle if we culled the triangle or if 
+		// we had one or less bones
+		if (build.m_UseClipVert || (!validTri))
+			return;
+	}
+
+	// Add the vertices to the decal since there was no clipping
+	i1 = AddVertexToDecal( build, i1, gi1 );
+	i2 = AddVertexToDecal( build, i2, gi2 );
+	i3 = AddVertexToDecal( build, i3, gi3 );
+
+	MEM_ALLOC_CREDIT();
+	build.m_pDecalMaterial->m_Indices.AddToTail(i1);
+	build.m_pDecalMaterial->m_Indices.AddToTail(i2);
+	build.m_pDecalMaterial->m_Indices.AddToTail(i3);
+}
+
+
+//-----------------------------------------------------------------------------
+// Adds a decal to a mesh 
+//-----------------------------------------------------------------------------
+void CStudioRender::AddDecalToMesh( DecalBuildInfo_t& build )
+{
+	MeshVertexInfo_t &vertexInfo = build.m_pMeshVertices[ build.m_nGlobalMeshIndex ];
+	if ( vertexInfo.m_nIndex < 0 )
+		return;
+
+	build.m_pVertexInfo = &build.m_pVertexBuffer[ vertexInfo.m_nIndex ];
+
+	// Draw all the various mesh groups...
+	for ( int j = 0; j < build.m_pMeshData->m_NumGroup; ++j )
+	{
+		build.m_Group = j;
+		studiomeshgroup_t* pGroup = &build.m_pMeshData->m_pMeshGroup[j];
+
+		// Must add decal to each strip in the strip group
+		// We do this so we can re-use all of the bone state change
+		// info associated with the strips
+		for (int k = 0; k < pGroup->m_NumStrips; ++k)
+		{
+			OptimizedModel::StripHeader_t* pStrip = &pGroup->m_pStripData[k];
+			if (pStrip->flags & OptimizedModel::STRIP_IS_TRISTRIP)
+			{
+				for (int i = 0; i < pStrip->numIndices - 2; ++i)
+				{
+					bool ccw = (i & 0x1) == 0;
+					int ti1 = pStrip->indexOffset + i;
+					int ti2 = ti1+1+ccw;
+					int ti3	= ti1+2-ccw;
+					int i1 = pGroup->MeshIndex(ti1);
+					int i2 = pGroup->MeshIndex(ti2);
+					int i3 = pGroup->MeshIndex(ti3);
+
+					AddTriangleToDecal( build, i1, i2, i3, pGroup->m_pIndices[ti1], pGroup->m_pIndices[ti2], pGroup->m_pIndices[ti3] );
+				}
+			}
+			else
+			{
+				Assert( pStrip->flags & OptimizedModel::STRIP_IS_TRILIST );
+				for (int i = 0; i < pStrip->numIndices; i += 3)
+				{
+					int idx = pStrip->indexOffset + i;
+
+					int i1 = pGroup->MeshIndex(idx);
+					int i2 = pGroup->MeshIndex(idx+1);
+					int i3 = pGroup->MeshIndex(idx+2);
+
+					AddTriangleToDecal( build, i1, i2, i3, pGroup->m_pIndices[idx], pGroup->m_pIndices[idx+1], pGroup->m_pIndices[idx+2] );
+				}
+			}
+		}
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Adds a decal to a mesh 
+//-----------------------------------------------------------------------------
+bool CStudioRender::AddDecalToModel( DecalBuildInfo_t& buildInfo )
+{
+	// FIXME: We need to do some high-level culling to figure out exactly
+	// which meshes we need to add the decals to
+	// Turns out this solution may also be good for mesh sorting
+	// we need to know the center of each mesh, could also store a
+	// bounding radius for each mesh and test the ray against each sphere.
+
+	for ( int i = 0; i < m_pSubModel->nummeshes; ++i)
+	{
+		buildInfo.m_Mesh = i;
+		buildInfo.m_pMesh = m_pSubModel->pMesh(i);
+		buildInfo.m_pMeshData = &m_pStudioMeshes[buildInfo.m_pMesh->meshid];
+		Assert(buildInfo.m_pMeshData);
+		// Grab either fat or thin vertex data
+		buildInfo.m_pMeshVertexData = buildInfo.m_pMesh->GetVertexData( buildInfo.m_pStudioHdr );
+		if ( buildInfo.m_pMeshVertexData == NULL )
+		{
+			buildInfo.m_pMeshThinVertexData = buildInfo.m_pMesh->GetThinVertexData( buildInfo.m_pStudioHdr );
+			if ( !buildInfo.m_pMeshThinVertexData )
+				return false;
+		}
+
+		AddDecalToMesh( buildInfo );
+		++buildInfo.m_nGlobalMeshIndex;
+	}
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Computes the pose to decal plane transform 
+//-----------------------------------------------------------------------------
+bool CStudioRender::ComputePoseToDecal( const Ray_t& ray, const Vector& up )
+{
+	// Create a transform that projects world coordinates into a 
+	// basis for the decal
+	matrix3x4_t worldToDecal;
+	Vector decalU, decalV, decalN;
+
+	// Get the z axis
+	VectorMultiply( ray.m_Delta, -1.0f, decalN );
+	if (VectorNormalize( decalN ) == 0.0f)
+		return false;
+
+	// Deal with the u axis
+	CrossProduct( up, decalN, decalU );
+	if ( VectorNormalize( decalU ) < 1e-3 )
+	{
+		// if up parallel or antiparallel to ray, deal...
+		Vector fixup( up.y, up.z, up.x );
+		CrossProduct( fixup, decalN, decalU );
+		if ( VectorNormalize( decalU ) < 1e-3 )
+			return false;
+	}
+
+	CrossProduct( decalN, decalU, decalV );
+
+	// Since I want world-to-decal, I gotta take the inverse of the decal
+	// to world. Assuming post-multiplying column vectors, the decal to world = 
+	//		[ Ux Vx Nx | ray.m_Start[0] ]
+	//		[ Uy Vy Ny | ray.m_Start[1] ]
+	//		[ Uz Vz Nz | ray.m_Start[2] ]
+
+	VectorCopy( decalU.Base(), worldToDecal[0] );
+	VectorCopy( decalV.Base(), worldToDecal[1] );
+	VectorCopy( decalN.Base(), worldToDecal[2] );
+
+	worldToDecal[0][3] = -DotProduct( ray.m_Start.Base(), worldToDecal[0] );
+	worldToDecal[1][3] = -DotProduct( ray.m_Start.Base(), worldToDecal[1] );
+	worldToDecal[2][3] = -DotProduct( ray.m_Start.Base(), worldToDecal[2] );
+
+	// Compute transforms from pose space to decal plane space
+	for ( int i = 0; i < m_pStudioHdr->numbones; i++)
+	{
+		ConcatTransforms( worldToDecal, m_PoseToWorld[i], m_PoseToDecal[i] );
+	}
+
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Gets the list of triangles for a particular material and lod
+//-----------------------------------------------------------------------------
+
+int CStudioRender::GetDecalMaterial( DecalLod_t& decalLod, IMaterial* pDecalMaterial )
+{
+	// Grab the material for this lod...
+	unsigned short j;
+	for ( j = decalLod.m_FirstMaterial; j != m_DecalMaterial.InvalidIndex(); j = m_DecalMaterial.Next(j) )
+	{
+		if (m_DecalMaterial[j].m_pMaterial == pDecalMaterial)
+		{
+			return j;
+		}
+	}
+
+	// If we got here, this must be the first time we saw this material
+	j = m_DecalMaterial.Alloc( true );
+	
+	// Link it into the list of data for this lod
+	if (decalLod.m_FirstMaterial != m_DecalMaterial.InvalidIndex() )
+		m_DecalMaterial.LinkBefore( decalLod.m_FirstMaterial, j );
+	decalLod.m_FirstMaterial = j;
+
+	m_DecalMaterial[j].m_pMaterial = pDecalMaterial;
+
+	return j;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose:
+//-----------------------------------------------------------------------------
+void CStudioRender::RetireDecal( DecalModelList_t &list, DecalId_t nRetireID, int iLOD, int iMaxLOD )
+{
+	// Remove it from the global LRU...
+	DecalLRUListIndex_t i;
+	for ( i = m_DecalLRU.Head(); i != m_DecalLRU.InvalidIndex(); i = m_DecalLRU.Next( i ) )
+	{
+		if ( nRetireID == m_DecalLRU[i].m_nDecalId )
+		{
+			m_DecalLRU.Remove( i );
+			break;
+		}
+	}
+	Assert( i != m_DecalLRU.InvalidIndex() );
+
+	// Find the id to retire and retire all the decals with this id across all LODs.
+	DecalHistoryList_t *pHistoryList = &list.m_pLod[iLOD].m_DecalHistory;
+	Assert( pHistoryList->Count() );
+	if ( !pHistoryList->Count() )
+		return;
+
+	DecalHistory_t *pDecalHistory = &pHistoryList->Element( pHistoryList->Head() );
+
+	// Retire this decal in all lods.
+	for ( int iLod = ( iMaxLOD - 1 ); iLod >= list.m_pHardwareData->m_RootLOD; --iLod )
+	{
+		pHistoryList = &list.m_pLod[iLod].m_DecalHistory;
+		if ( !pHistoryList )
+			continue;
+	
+		unsigned short iList = pHistoryList->Head();
+		unsigned short iNext = pHistoryList->InvalidIndex();
+
+		while ( iList != pHistoryList->InvalidIndex() )
+		{
+			iNext = pHistoryList->Next( iList );
+
+			pDecalHistory = &pHistoryList->Element( iList );
+			if ( !pDecalHistory || pDecalHistory->m_nId != nRetireID )
+			{
+				iList = iNext;
+				continue;
+			}
+
+			// Find the decal material for the decal to remove
+			DecalMaterial_t *pMaterial = &m_DecalMaterial[pDecalHistory->m_Material];			
+			if ( pMaterial )
+			{
+				// @Note!! Decals must be removed in the reverse order they are added. This code
+				// assumes that the decal to remove is the oldest one on the model, and therefore
+				// its vertices start at the head of the list
+				DecalVertexList_t &vertices = pMaterial->m_Vertices;
+				Decal_t &decalToRemove = pMaterial->m_Decals[pDecalHistory->m_Decal];
+				
+				// Now clear out the vertices referenced by the indices....
+				DecalVertexList_t::IndexType_t next; 
+				DecalVertexList_t::IndexType_t vert = vertices.Head();
+				Assert( vertices.Count() >= decalToRemove.m_VertexCount );
+				int vertsToRemove = decalToRemove.m_VertexCount;
+				while ( vertsToRemove > 0 )
+				{
+					// blat out the vertices
+					next = vertices.Next( vert );
+					vertices.Remove( vert );
+					vert = next;
+					g_nTotalDecalVerts--;
+					
+					--vertsToRemove;
+				}
+
+				if ( vertices.Count() == 0 )
+				{
+					vertices.Purge();
+				}
+				
+				// FIXME: This does a memmove. How expensive is it?
+				pMaterial->m_Indices.RemoveMultiple( 0, decalToRemove.m_IndexCount );
+				if ( pMaterial->m_Indices.Count() == 0)
+				{
+					pMaterial->m_Indices.Purge();
+				}
+				
+				// Remove the decal
+				pMaterial->m_Decals.Remove( pDecalHistory->m_Decal );
+				if ( pMaterial->m_Decals.Count() == 0)
+				{
+#if 1
+					pMaterial->m_Decals.Purge();
+#else
+					if ( list.m_pLod[iLOD].m_FirstMaterial == pDecalHistory->m_Material )
+					{
+						list.m_pLod[iLOD].m_FirstMaterial = m_DecalMaterial.Next( pDecalHistory->m_Material );
+					}
+					m_DecalMaterial.Free( pDecalHistory->m_Material );
+#endif
+				}
+			}
+
+			// Clear the decal out of the history
+			pHistoryList->Remove( iList );
+
+			// Next element.
+			iList = iNext;
+		}
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Adds a decal to the history list
+//-----------------------------------------------------------------------------
+int CStudioRender::AddDecalToMaterialList( DecalMaterial_t* pMaterial )
+{
+	DecalList_t& decalList = pMaterial->m_Decals;
+	return decalList.AddToTail();
+}
+
+
+//-----------------------------------------------------------------------------
+// Total number of meshes we have to deal with
+//-----------------------------------------------------------------------------
+int CStudioRender::ComputeTotalMeshCount( int iRootLOD, int iMaxLOD, int body ) const
+{
+	int nMeshCount = 0;
+	for ( int k=0 ; k < m_pStudioHdr->numbodyparts ; k++) 
+	{
+		mstudiomodel_t *pSubModel;
+		R_StudioSetupModel( k, body, &pSubModel, m_pStudioHdr );
+		nMeshCount += pSubModel->nummeshes;
+	}
+
+	nMeshCount *= iMaxLOD-iRootLOD+1;
+
+	return nMeshCount;
+}
+
+
+//-----------------------------------------------------------------------------
+// Set up the locations for vertices to use
+//-----------------------------------------------------------------------------
+int CStudioRender::ComputeVertexAllocation( int iMaxLOD, int body, studiohwdata_t *pHardwareData, MeshVertexInfo_t *pMeshVertices )
+{
+	bool bSuppressTlucDecal = (m_pStudioHdr->flags & STUDIOHDR_FLAGS_TRANSLUCENT_TWOPASS) != 0;
+
+	int nCurrMesh = 0;
+	int nVertexCount = 0;
+	for ( int i = iMaxLOD-1; i >= pHardwareData->m_RootLOD; i--)
+	{
+		IMaterial **ppMaterials = pHardwareData->m_pLODs[i].ppMaterials;
+
+		for ( int k=0 ; k < m_pStudioHdr->numbodyparts ; k++) 
+		{
+			mstudiomodel_t *pSubModel;
+			R_StudioSetupModel( k, body, &pSubModel, m_pStudioHdr );
+
+			for ( int meshID = 0; meshID < pSubModel->nummeshes; ++meshID, ++nCurrMesh)
+			{
+				mstudiomesh_t *pMesh = pSubModel->pMesh(meshID);
+
+				pMeshVertices[nCurrMesh].m_pMesh = pMesh;
+
+				int n;
+				for ( n = nCurrMesh; --n >= 0; )
+				{
+					if ( pMeshVertices[n].m_pMesh == pMesh ) 
+					{
+						pMeshVertices[nCurrMesh].m_nIndex = pMeshVertices[n].m_nIndex;
+						break;
+					}
+				}
+				if ( n >= 0 )
+					continue;
+
+				// Don't add to the mesh if the mesh has a translucent material
+				short *pSkinRef	= m_pStudioHdr->pSkinref( 0 );
+				IMaterial *pMaterial = ppMaterials[pSkinRef[pMesh->material]];
+				if (bSuppressTlucDecal)
+				{
+					if (pMaterial->IsTranslucent())
+					{
+						pMeshVertices[nCurrMesh].m_nIndex = -1;
+						continue;
+					}
+				}
+
+				if ( pMaterial->GetMaterialVarFlag( MATERIAL_VAR_SUPPRESS_DECALS ) )
+				{
+					pMeshVertices[nCurrMesh].m_nIndex = -1;
+					continue;
+				}
+
+				pMeshVertices[nCurrMesh].m_nIndex = nVertexCount;
+				nVertexCount += pMesh->numvertices;
+			}
+		}
+	}
+
+	return nVertexCount;
+}
+
+
+//-----------------------------------------------------------------------------
+// Project decals onto all meshes
+//-----------------------------------------------------------------------------
+void CStudioRender::ProjectDecalsOntoMeshes( DecalBuildInfo_t& build, int nMeshCount )
+{
+	int nMaxVertexIndex = -1;
+
+	for ( int i = 0; i < nMeshCount; ++i )
+	{
+		int nIndex = build.m_pMeshVertices[i].m_nIndex;
+
+		// No mesh, or have we already projected this?
+		if (( nIndex < 0 ) || ( nIndex <= nMaxVertexIndex ))
+			continue;
+
+		nMaxVertexIndex = nIndex;
+
+		// Project all vertices for this group into decal space
+		ProjectDecalOntoMesh( build, &build.m_pVertexBuffer[ nIndex ], build.m_pMeshVertices[i].m_pMesh );
+	}
+}
+
+
+	
+//-----------------------------------------------------------------------------
+// Add decals to a decal list by doing a planar projection along the ray
+//-----------------------------------------------------------------------------
+void CStudioRender::AddDecal( StudioDecalHandle_t hDecal, const StudioRenderContext_t& rc, matrix3x4_t *pBoneToWorld, 
+	studiohdr_t *pStudioHdr, const Ray_t& ray, const Vector& decalUp, IMaterial* pDecalMaterial, 
+	float radius, int body, bool noPokethru, int maxLODToDecal )
+{
+	VPROF( "CStudioRender::AddDecal" );
+
+	if ( hDecal == STUDIORENDER_DECAL_INVALID )
+		return;
+
+	// For each lod, build the decal list
+	int h = (int)hDecal;
+	DecalModelList_t& list = m_DecalList[h];
+
+	if ( list.m_pHardwareData->m_NumStudioMeshes == 0 )
+		return;
+
+	m_pRC = const_cast< StudioRenderContext_t* >( &rc );
+	m_pStudioHdr = pStudioHdr;
+	m_pBoneToWorld = pBoneToWorld;
+
+	// Bone to world must be set before calling AddDecal; it uses that here
+	// UNDONE: Use current LOD to cull matrices here?
+	ComputePoseToWorld( m_PoseToWorld, pStudioHdr, BONE_USED_BY_ANYTHING, m_pRC->m_ViewOrigin, m_pBoneToWorld );
+
+	// Compute transforms from pose space to decal plane space
+	if (!ComputePoseToDecal( ray, decalUp ))
+	{
+		m_pStudioHdr = NULL;
+		m_pRC = NULL;
+		m_pBoneToWorld = NULL;
+		return;
+	}
+
+	// Get dynamic information from the material (fade start, fade time)
+	float fadeStartTime	= 0.0f;
+	float fadeDuration = 0.0f;
+	int flags = 0;
+
+	// This sucker is state needed only when building decals
+	DecalBuildInfo_t buildInfo;
+	buildInfo.m_Radius = radius;
+	buildInfo.m_NoPokeThru = noPokethru;
+	buildInfo.m_pStudioHdr = pStudioHdr;
+ 	buildInfo.m_UseClipVert = ( m_pStudioHdr->numbones <= 1 ) && ( m_pStudioHdr->numflexdesc == 0 );
+	buildInfo.m_nGlobalMeshIndex = 0;
+	buildInfo.m_pMeshVertexData = NULL;
+
+	// Find out which LODs we're defacing
+	int iMaxLOD;
+	if ( maxLODToDecal == ADDDECAL_TO_ALL_LODS )
+	{
+		iMaxLOD = list.m_pHardwareData->m_NumLODs;
+	}
+	else 
+	{
+		iMaxLOD = min( list.m_pHardwareData->m_NumLODs, maxLODToDecal );
+	}
+
+	// Allocate space for all projected mesh vertices. We do this to prevent
+	// re-projection of the same meshes when they appear in multiple LODs
+	int nMeshCount = ComputeTotalMeshCount( list.m_pHardwareData->m_RootLOD, iMaxLOD-1, body );
+
+	// NOTE: This is a consequence of the sizeof (m_UniqueID)
+	if ( nMeshCount >= 255 )
+	{
+		Warning("Unable to apply decals to model (%s), it has more than 255 unique meshes!\n", m_pStudioHdr->pszName() );
+		m_pStudioHdr = NULL;
+		m_pRC = NULL;
+		m_pBoneToWorld = NULL;
+		return;
+	}
+
+	if ( !IsX360() )
+	{
+		buildInfo.m_pMeshVertices = (MeshVertexInfo_t*)stackalloc( nMeshCount * sizeof(MeshVertexInfo_t) );	
+		int nVertexCount = ComputeVertexAllocation( iMaxLOD, body, list.m_pHardwareData, buildInfo.m_pMeshVertices );
+		buildInfo.m_pVertexBuffer = (DecalBuildVertexInfo_t*)stackalloc( nVertexCount * sizeof(DecalBuildVertexInfo_t) );
+	}
+	else
+	{
+		// Don't allocate on the stack
+		buildInfo.m_pMeshVertices = (MeshVertexInfo_t*)malloc( nMeshCount * sizeof(MeshVertexInfo_t) );	
+		int nVertexCount = ComputeVertexAllocation( iMaxLOD, body, list.m_pHardwareData, buildInfo.m_pMeshVertices );
+		buildInfo.m_pVertexBuffer = (DecalBuildVertexInfo_t*)malloc( nVertexCount * sizeof(DecalBuildVertexInfo_t) );
+	}
+
+	// Project all mesh vertices
+	ProjectDecalsOntoMeshes( buildInfo, nMeshCount );
+
+	if ( IsX360() )
+	{
+		while ( g_nTotalDecalVerts * sizeof(DecalVertex_t) > 256*1024 && m_DecalLRU.Head() != m_DecalLRU.InvalidIndex() )
+		{
+			DecalId_t nRetireID = m_DecalLRU[ m_DecalLRU.Head() ].m_nDecalId;
+			StudioDecalHandle_t hRetire = m_DecalLRU[ m_DecalLRU.Head() ].m_hDecalHandle;
+			DecalModelList_t &modelList = m_DecalList[(int)hRetire];
+			RetireDecal( modelList, nRetireID, modelList.m_pHardwareData->m_RootLOD, modelList.m_pHardwareData->m_NumLODs );
+		}
+	}
+
+	// Check to see if we have too many decals on this model
+	// This assumes that every decal is applied to the root lod at least 
+	int nRootLOD = list.m_pHardwareData->m_RootLOD;
+	int nFinalLOD = list.m_pHardwareData->m_NumLODs;
+	DecalHistoryList_t *pHistoryList = &list.m_pLod[list.m_pHardwareData->m_RootLOD].m_DecalHistory;
+	if ( m_DecalLRU.Count() >= m_pRC->m_Config.maxDecalsPerModel * 1.5 )
+	{
+		DecalId_t nRetireID = m_DecalLRU[ m_DecalLRU.Head() ].m_nDecalId;
+		StudioDecalHandle_t hRetire = m_DecalLRU[ m_DecalLRU.Head() ].m_hDecalHandle;
+		DecalModelList_t &modelList = m_DecalList[(int)hRetire];
+		RetireDecal( modelList, nRetireID, modelList.m_pHardwareData->m_RootLOD, modelList.m_pHardwareData->m_NumLODs );
+	}
+
+	if ( pHistoryList->Count() >= m_pRC->m_Config.maxDecalsPerModel )
+	{
+		DecalHistory_t *pDecalHistory = &pHistoryList->Element( pHistoryList->Head() );
+		DecalId_t nRetireID = pDecalHistory->m_nId;
+		StudioDecalHandle_t hRetire = hDecal;
+		RetireDecal( m_DecalList[(int)hRetire], nRetireID, nRootLOD, nFinalLOD );
+	}
+
+	// Search all LODs for an overflow condition and retire those also
+	for ( int i = iMaxLOD-1; i >= list.m_pHardwareData->m_RootLOD; i-- )
+	{
+		// Grab the list of all decals using the same material for this lod...
+		int materialIdx = GetDecalMaterial( list.m_pLod[i], pDecalMaterial );
+
+		// Check to see if we should retire the decal
+		DecalMaterial_t *pDecalMaterial = &m_DecalMaterial[materialIdx];
+		while ( pDecalMaterial->m_Indices.Count() > MAX_DECAL_INDICES_PER_MODEL )
+		{
+			DecalHistoryList_t *pHistoryList = &list.m_pLod[i].m_DecalHistory;
+			DecalHistory_t *pDecalHistory = &pHistoryList->Element( pHistoryList->Head() );
+			RetireDecal( list, pDecalHistory->m_nId, nRootLOD, nFinalLOD );
+		}
+	}	
+
+	// Gotta do this for all LODs
+	bool bAddedDecals = false;
+	for ( int i = iMaxLOD-1; i >= list.m_pHardwareData->m_RootLOD; i-- )
+	{
+		// Grab the list of all decals using the same material for this lod...
+		int materialIdx = GetDecalMaterial( list.m_pLod[i], pDecalMaterial );
+		buildInfo.m_pDecalMaterial = &m_DecalMaterial[materialIdx];
+
+		// Grab the meshes for this lod
+		m_pStudioMeshes = list.m_pHardwareData->m_pLODs[i].m_pMeshData;
+
+		// Don't decal on meshes that are translucent if it's twopass
+		buildInfo.m_ppMaterials = list.m_pHardwareData->m_pLODs[i].ppMaterials;
+
+		// Set up info needed for vertex sharing
+		buildInfo.m_FirstVertex = buildInfo.m_pDecalMaterial->m_Vertices.InvalidIndex();
+		buildInfo.m_VertexCount = 0;
+
+		int prevIndexCount = buildInfo.m_pDecalMaterial->m_Indices.Count();
+
+		// Step over all body parts + add decals to em all!
+		int k;
+		for ( k=0 ; k < m_pStudioHdr->numbodyparts ; k++) 
+		{
+			// Grab the model for this body part
+			int model = R_StudioSetupModel( k, body, &m_pSubModel, m_pStudioHdr );
+			buildInfo.m_Body = k;
+			buildInfo.m_Model = model;
+			if ( !AddDecalToModel( buildInfo ) )
+				break;
+		}
+
+		if ( k != m_pStudioHdr->numbodyparts )
+			continue;
+
+		// Add this to the list of decals in this material
+		if ( buildInfo.m_VertexCount )
+		{
+			bAddedDecals = true;
+
+			int decalIndexCount = buildInfo.m_pDecalMaterial->m_Indices.Count() - prevIndexCount;
+			Assert(decalIndexCount > 0);
+
+			int decalIndex = AddDecalToMaterialList( buildInfo.m_pDecalMaterial );
+			Decal_t& decal = buildInfo.m_pDecalMaterial->m_Decals[decalIndex];
+			decal.m_VertexCount = buildInfo.m_VertexCount;
+			decal.m_IndexCount = decalIndexCount;
+			decal.m_FadeStartTime = fadeStartTime;
+			decal.m_FadeDuration = fadeDuration; 
+			decal.m_Flags = flags;
+
+			// Add this decal to the history...
+			int h = list.m_pLod[i].m_DecalHistory.AddToTail();
+			list.m_pLod[i].m_DecalHistory[h].m_Material = materialIdx;
+			list.m_pLod[i].m_DecalHistory[h].m_Decal = decalIndex;
+			list.m_pLod[i].m_DecalHistory[h].m_nId = m_nDecalId;
+			list.m_pLod[i].m_DecalHistory[h].m_nPad = 0;
+		}
+	}
+
+	// Add to LRU
+	if ( bAddedDecals )
+	{
+		DecalLRUListIndex_t h = m_DecalLRU.AddToTail();
+		m_DecalLRU[h].m_nDecalId = m_nDecalId;
+		m_DecalLRU[h].m_hDecalHandle = hDecal;
+
+		// Increment count.
+		++m_nDecalId;
+	}
+
+	if ( IsX360() )
+	{
+		free( buildInfo.m_pMeshVertices );
+		free( buildInfo.m_pVertexBuffer );
+	}
+
+	m_pStudioHdr = NULL;
+	m_pRC = NULL;
+	m_pBoneToWorld = NULL;
+}
+
+
+//-----------------------------------------------------------------------------
+//
+// This code here is all about rendering the decals
+//
+//-----------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+// Inner loop for rendering decals that have a single bone
+//-----------------------------------------------------------------------------
+
+void CStudioRender::DrawSingleBoneDecals( CMeshBuilder& meshBuilder, DecalMaterial_t& decalMaterial )
+{
+	// We don't got no bones, so yummy yummy yum, just copy the data out
+	// Static props should go though this code path
+
+	DecalVertexList_t& verts = decalMaterial.m_Vertices; 
+	for ( DecalVertexList_t::IndexLocalType_t i = verts.Head(); i != verts.InvalidIndex(); i = verts.Next(i) )
+	{
+		DecalVertex_t& vertex = verts[i];
+		
+		meshBuilder.Position3fv( vertex.m_Position.Base() );
+		meshBuilder.Normal3fv( GetVecNormal( vertex.m_Normal ).Base() );
+#if 0
+		if ( decalMaterial.m_pMaterial->InMaterialPage() )
+		{
+			float offset[2], scale[2];
+			decalMaterial.m_pMaterial->GetMaterialOffset( offset );
+			decalMaterial.m_pMaterial->GetMaterialScale( scale );
+
+			Vector2D vecTexCoord( vertex.m_TexCoord.x, vertex.m_TexCoord.y );
+			vecTexCoord.x = clamp( vecTexCoord.x, 0.0f, 1.0f );
+			vecTexCoord.y = clamp( vecTexCoord.y, 0.0f, 1.0f );
+			meshBuilder.TexCoordSubRect2f( 0, vecTexCoord.x, vecTexCoord.y, offset[0], offset[1], scale[0], scale[1] );
+
+//			meshBuilder.TexCoordSubRect2f( 0, vertex.m_TexCoord.x, vertex.m_TexCoord.y, offset[0], offset[1], scale[0], scale[1] );
+		}
+		else
+#endif
+		{
+			meshBuilder.TexCoord2fv( 0, GetVecTexCoord(vertex.m_TexCoord).Base() );
+		}
+		meshBuilder.Color4ub( 255, 255, 255, 255 );
+
+		if ( meshBuilder.NumBoneWeights() > 0 )	// bone weight of 0 will not write anything, so these calls would be wasted
+		{	
+			meshBuilder.BoneWeight( 0, 1.0f );
+			meshBuilder.BoneWeight( 1, 0.0f );
+			meshBuilder.BoneWeight( 2, 0.0f );
+			meshBuilder.BoneWeight( 3, 0.0f );
+		}
+
+		meshBuilder.BoneMatrix( 0, 0 );
+		meshBuilder.BoneMatrix( 1, 0 );
+		meshBuilder.BoneMatrix( 2, 0 );
+		meshBuilder.BoneMatrix( 3, 0 );
+
+		meshBuilder.AdvanceVertex();
+	}
+}
+
+void CStudioRender::DrawSingleBoneFlexedDecals( IMatRenderContext *pRenderContext, CMeshBuilder& meshBuilder, DecalMaterial_t& decalMaterial )
+{
+	// We don't got no bones, so yummy yummy yum, just copy the data out
+	// Static props should go though this code path
+	DecalVertexList_t& verts = decalMaterial.m_Vertices; 
+	for ( DecalVertexList_t::IndexLocalType_t i = verts.Head(); i != verts.InvalidIndex(); i = verts.Next(i) )
+	{
+		DecalVertex_t& vertex = verts[i];
+
+		// Clipped verts shouldn't come through here, only static props should use clipped
+		Assert ( vertex.m_MeshVertexIndex >= 0 );
+
+		m_VertexCache.SetBodyModelMesh( vertex.m_Body, vertex.m_Model, vertex.m_Mesh );
+		if (m_VertexCache.IsVertexFlexed( vertex.m_MeshVertexIndex ))
+		{
+			CachedPosNormTan_t* pFlexedVertex = m_VertexCache.GetFlexVertex( vertex.m_MeshVertexIndex );
+			meshBuilder.Position3fv( pFlexedVertex->m_Position.Base() );
+			meshBuilder.Normal3fv( pFlexedVertex->m_Normal.Base() );
+		}
+		else
+		{
+			meshBuilder.Position3fv( vertex.m_Position.Base() );
+			meshBuilder.Normal3fv( GetVecNormal( vertex.m_Normal ).Base() );
+		}
+
+#if 0
+		if ( decalMaterial.m_pMaterial->InMaterialPage() )
+		{
+			float offset[2], scale[2];
+			decalMaterial.m_pMaterial->GetMaterialOffset( offset );
+			decalMaterial.m_pMaterial->GetMaterialScale( scale );
+
+			Vector2D vecTexCoord( vertex.m_TexCoord.x, vertex.m_TexCoord.y );
+			vecTexCoord.x = clamp( vecTexCoord.x, 0.0f, 1.0f );
+			vecTexCoord.y = clamp( vecTexCoord.y, 0.0f, 1.0f );
+			meshBuilder.TexCoordSubRect2f( 0, vecTexCoord.x, vecTexCoord.y, offset[0], offset[1], scale[0], scale[1] );
+
+//			meshBuilder.TexCoordSubRect2f( 0, vertex.m_TexCoord.x, vertex.m_TexCoord.y, offset[0], offset[1], scale[0], scale[1] );
+		}
+		else
+#endif
+		{
+			meshBuilder.TexCoord2fv( 0, GetVecTexCoord(vertex.m_TexCoord).Base() );
+		}
+
+		meshBuilder.Color4ub( 255, 255, 255, 255 );
+
+		if ( meshBuilder.NumBoneWeights() > 0 )	// bone weight of 0 will not write anything, so these calls would be wasted
+		{	
+			meshBuilder.BoneWeight( 0, 1.0f );
+			meshBuilder.BoneWeight( 1, 0.0f );
+			meshBuilder.BoneWeight( 2, 0.0f );
+			meshBuilder.BoneWeight( 3, 0.0f );
+		}
+		
+		meshBuilder.BoneMatrix( 0, 0 );
+		meshBuilder.BoneMatrix( 1, 0 );
+		meshBuilder.BoneMatrix( 2, 0 );
+		meshBuilder.BoneMatrix( 3, 0 );
+
+		meshBuilder.AdvanceVertex();
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Inner loop for rendering decals that have multiple bones
+//-----------------------------------------------------------------------------
+bool CStudioRender::DrawMultiBoneDecals( CMeshBuilder& meshBuilder, DecalMaterial_t& decalMaterial, studiohdr_t *pStudioHdr )
+{
+	const thinModelVertices_t		*thinVertData	= NULL;
+	const mstudio_meshvertexdata_t	*vertData		= NULL;
+	mstudiomesh_t					*pLastMesh		= NULL;
+
+	DecalVertexList_t& verts = decalMaterial.m_Vertices; 
+	for ( DecalVertexList_t::IndexLocalType_t i = verts.Head(); i != verts.InvalidIndex(); i = verts.Next(i) )
+	{
+		DecalVertex_t& vertex = verts[i];
+		
+		int n = vertex.m_MeshVertexIndex;
+
+		Assert( n < MAXSTUDIOVERTS );
+
+		mstudiomesh_t *pMesh = vertex.GetMesh( pStudioHdr );
+		Assert( pMesh );
+
+		m_VertexCache.SetBodyModelMesh( vertex.m_Body, vertex.m_Model, vertex.m_Mesh );
+		if (m_VertexCache.IsVertexPositionCached( n ))
+		{
+			CachedPosNorm_t* pCachedVert = m_VertexCache.GetWorldVertex( n );
+			meshBuilder.Position3fv( pCachedVert->m_Position.Base() );
+			meshBuilder.Normal3fv( pCachedVert->m_Normal.Base() );
+		}
+		else
+		{
+			// Prevent the computation of this again....
+			m_VertexCache.SetupComputation(pMesh);
+			CachedPosNorm_t* pCachedVert = m_VertexCache.CreateWorldVertex( n );
+
+			if ( pLastMesh != pMesh )
+			{
+				// only if the mesh changes
+				pLastMesh = pMesh;
+				vertData  = pMesh->GetVertexData( pStudioHdr );
+				if ( vertData )
+					thinVertData = NULL;
+				else
+					thinVertData = pMesh->GetThinVertexData( pStudioHdr );
+			}
+
+			if ( vertData )
+			{
+				mstudioboneweight_t* pBoneWeights = vertData->BoneWeights( n );
+				// FIXME: could be faster to blend the matrices and then transform the pos+norm by the same matrix
+				R_StudioTransform( *vertData->Position( n ), pBoneWeights, pCachedVert->m_Position.AsVector3D() );
+				R_StudioRotate( *vertData->Normal( n ), pBoneWeights, pCachedVert->m_Normal.AsVector3D() );
+			}
+			else if ( thinVertData )
+			{
+				// Using compressed vertex data
+				mstudioboneweight_t boneWeights;
+				Vector position;
+				Vector normal;
+				thinVertData->GetMeshBoneWeights( pMesh, n, &boneWeights );
+				thinVertData->GetMeshPosition( pMesh, n, &position );
+				thinVertData->GetMeshNormal( pMesh, n, &normal );
+				R_StudioTransform( position, &boneWeights, pCachedVert->m_Position.AsVector3D() );
+				R_StudioRotate( normal, &boneWeights, pCachedVert->m_Normal.AsVector3D() );
+			}
+			else
+			{
+				return false;
+			}
+
+			// Add a little extra offset for hardware skinning; in that case
+			// we're doing software skinning for decals and it might not be quite right
+			VectorMA( pCachedVert->m_Position.AsVector3D(), 0.1, pCachedVert->m_Normal.AsVector3D(), pCachedVert->m_Position.AsVector3D() );
+
+			meshBuilder.Position3fv( pCachedVert->m_Position.Base() );
+			meshBuilder.Normal3fv( pCachedVert->m_Normal.Base() );
+		}
+
+#if 0
+		if ( decalMaterial.m_pMaterial->InMaterialPage() )
+		{
+			float offset[2], scale[2];
+			decalMaterial.m_pMaterial->GetMaterialOffset( offset );
+			decalMaterial.m_pMaterial->GetMaterialScale( scale );
+
+			Vector2D vecTexCoord( vertex.m_TexCoord.x, vertex.m_TexCoord.y );
+			vecTexCoord.x = clamp( vecTexCoord.x, 0.0f, 1.0f );
+			vecTexCoord.y = clamp( vecTexCoord.y, 0.0f, 1.0f );
+			meshBuilder.TexCoordSubRect2f( 0, vecTexCoord.x, vecTexCoord.y, offset[0], offset[1], scale[0], scale[1] );
+
+//			meshBuilder.TexCoordSubRect2f( 0, vertex.m_TexCoord.x, vertex.m_TexCoord.y, offset[0], offset[1], scale[0], scale[1] );
+		}
+		else
+#endif
+		{
+			meshBuilder.TexCoord2fv( 0, GetVecTexCoord(vertex.m_TexCoord).Base() );
+		}
+
+		meshBuilder.Color4ub( 255, 255, 255, 255 );
+
+		if ( meshBuilder.NumBoneWeights() > 0 )	// bone weight of 0 will not write anything, so these calls would be wasted
+		{	
+			meshBuilder.BoneWeight( 0, 1.0f );
+			meshBuilder.BoneWeight( 1, 0.0f );
+			meshBuilder.BoneWeight( 2, 0.0f );
+			meshBuilder.BoneWeight( 3, 0.0f );
+		}
+		
+		meshBuilder.BoneMatrix( 0, 0 );
+		meshBuilder.BoneMatrix( 1, 0 );
+		meshBuilder.BoneMatrix( 2, 0 );
+		meshBuilder.BoneMatrix( 3, 0 );
+
+		meshBuilder.AdvanceVertex();
+	}
+	return true;
+}
+
+bool CStudioRender::DrawMultiBoneFlexedDecals( IMatRenderContext *pRenderContext, CMeshBuilder& meshBuilder, 
+	DecalMaterial_t& decalMaterial, studiohdr_t *pStudioHdr, studioloddata_t *pStudioLOD )
+{
+	int *pBoneRemap = pStudioLOD ? pStudioLOD->m_pHWMorphDecalBoneRemap : NULL;
+
+	mstudiomesh_t *pLastMesh = NULL;
+	const mstudio_meshvertexdata_t *vertData = NULL;
+
+	DecalVertexList_t& verts = decalMaterial.m_Vertices; 
+	for ( DecalVertexList_t::IndexLocalType_t i = verts.Head(); i != verts.InvalidIndex(); i = verts.Next(i) )
+	{
+		DecalVertex_t& vertex = verts[i];
+		
+		int n = vertex.m_MeshVertexIndex;
+
+		mstudiomesh_t *pMesh = vertex.GetMesh( pStudioHdr );
+		Assert( pMesh );
+
+		if ( pLastMesh != pMesh )
+		{
+			// only if the mesh changes
+			pLastMesh = pMesh;
+			vertData  = pMesh->GetVertexData( pStudioHdr );
+		}
+
+		if ( !vertData )
+			return false;
+
+		IMorph *pMorph = pBoneRemap ? vertex.GetMorph( m_pStudioHdr, m_pStudioMeshes ) : NULL;
+		Vector2D morphUV;
+		if ( pMorph )
+		{
+			Assert( pBoneRemap );
+			Assert( vertex.m_GroupIndex != 0xFFFF );
+			if ( !pRenderContext->GetMorphAccumulatorTexCoord( &morphUV, pMorph, vertex.m_GroupIndex ) )
+			{
+				pMorph = NULL;
+			}
+		}
+
+		if ( !pMorph )
+		{
+			mstudioboneweight_t* pBoneWeights = vertData->BoneWeights( n );
+			m_VertexCache.SetBodyModelMesh( vertex.m_Body, vertex.m_Model, vertex.m_Mesh );
+
+			if ( m_VertexCache.IsVertexPositionCached( n ) )
+			{
+				CachedPosNorm_t* pCachedVert = m_VertexCache.GetWorldVertex( n );
+				meshBuilder.Position3fv( pCachedVert->m_Position.Base() );
+				meshBuilder.Normal3fv( pCachedVert->m_Normal.Base() );
+			}
+			else
+			{
+				// Prevent the computation of this again....
+				m_VertexCache.SetupComputation(pMesh);
+				CachedPosNorm_t* pCachedVert = m_VertexCache.CreateWorldVertex( n );
+
+				if (m_VertexCache.IsThinVertexFlexed( n ))
+				{
+					CachedPosNorm_t* pFlexedVertex = m_VertexCache.GetThinFlexVertex( n );
+					Vector vecPosition, vecNormal;
+					VectorAdd( *vertData->Position( n ), pFlexedVertex->m_Position.AsVector3D(), vecPosition );
+					VectorAdd( *vertData->Normal( n ), pFlexedVertex->m_Normal.AsVector3D(), vecNormal );
+					R_StudioTransform( vecPosition, pBoneWeights, pCachedVert->m_Position.AsVector3D() );
+					R_StudioRotate( vecNormal, pBoneWeights, pCachedVert->m_Normal.AsVector3D() );
+					VectorNormalize( pCachedVert->m_Normal.AsVector3D() );
+				}
+				else if (m_VertexCache.IsVertexFlexed( n ))
+				{
+					CachedPosNormTan_t* pFlexedVertex = m_VertexCache.GetFlexVertex( n );
+					R_StudioTransform( pFlexedVertex->m_Position, pBoneWeights, pCachedVert->m_Position.AsVector3D() );
+					R_StudioRotate( pFlexedVertex->m_Normal, pBoneWeights, pCachedVert->m_Normal.AsVector3D() );
+				}
+				else
+				{
+					Assert( pMesh );
+					R_StudioTransform( *vertData->Position( n ), pBoneWeights, pCachedVert->m_Position.AsVector3D() );
+					R_StudioRotate( *vertData->Normal( n ), pBoneWeights, pCachedVert->m_Normal.AsVector3D() );
+				}
+
+				// Add a little extra offset for hardware skinning; in that case
+				// we're doing software skinning for decals and it might not be quite right
+				VectorMA( pCachedVert->m_Position.AsVector3D(), 0.1, pCachedVert->m_Normal.AsVector3D(), pCachedVert->m_Position.AsVector3D() );
+
+				meshBuilder.Position3fv( pCachedVert->m_Position.Base() );
+				meshBuilder.Normal3fv( pCachedVert->m_Normal.Base() );
+			}
+
+			meshBuilder.Color4ub( 255, 255, 255, 255 );
+			meshBuilder.TexCoord2fv( 0, GetVecTexCoord( vertex.m_TexCoord ).Base() );
+			meshBuilder.TexCoord3f( 2, 0.0f, 0.0f, 0.0f );
+
+			// NOTE: Even if HW morphing is active, since we're using bone 0, it will multiply by identity in the shader
+			if ( meshBuilder.NumBoneWeights() > 0 )	// bone weight of 0 will not write anything, so these calls would be wasted
+			{	
+				meshBuilder.BoneWeight( 0, 1.0f );	
+				meshBuilder.BoneWeight( 1, 0.0f );
+				meshBuilder.BoneWeight( 2, 0.0f );
+				meshBuilder.BoneWeight( 3, 0.0f );
+			}
+			
+			meshBuilder.BoneMatrix( 0, 0 );
+			meshBuilder.BoneMatrix( 1, 0 );
+			meshBuilder.BoneMatrix( 2, 0 );
+			meshBuilder.BoneMatrix( 3, 0 );
+		}
+		else
+		{
+			meshBuilder.Position3fv( vertData->Position( n )->Base() );
+			meshBuilder.Normal3fv( vertData->Normal( n )->Base() );
+			meshBuilder.Color4ub( 255, 255, 255, 255 );
+			meshBuilder.TexCoord2fv( 0, GetVecTexCoord( vertex.m_TexCoord ).Base() );
+			meshBuilder.TexCoord3f( 2, morphUV.x, morphUV.y, 1.0f );
+
+			// NOTE: We should be renormalizing bone weights here like R_AddVertexToMesh does.. 
+			// It's too expensive. Tough noogies.
+			mstudioboneweight_t* pBoneWeights = vertData->BoneWeights( n );
+			Assert( pBoneWeights->numbones <= 3 );
+			meshBuilder.BoneWeight( 0, pBoneWeights->weight[ 0 ] );	
+			meshBuilder.BoneWeight( 1, pBoneWeights->weight[ 1 ] );
+			meshBuilder.BoneWeight( 2, 1.0f - pBoneWeights->weight[ 1 ] - pBoneWeights->weight[ 0 ] );
+			meshBuilder.BoneWeight( 3, 0.0f );
+			meshBuilder.BoneMatrix( 0, pBoneRemap[ (unsigned)pBoneWeights->bone[0] ] );
+			meshBuilder.BoneMatrix( 1, pBoneRemap[ (unsigned)pBoneWeights->bone[1] ] );
+			meshBuilder.BoneMatrix( 2, pBoneRemap[ (unsigned)pBoneWeights->bone[2] ] );
+			meshBuilder.BoneMatrix( 3, BONE_MATRIX_INDEX_INVALID );
+		}
+
+		meshBuilder.AdvanceVertex();
+	}
+	return true;
+}
+
+//-----------------------------------------------------------------------------
+// Draws all the decals using a particular material
+//-----------------------------------------------------------------------------
+void CStudioRender::DrawDecalMaterial( IMatRenderContext *pRenderContext, DecalMaterial_t& decalMaterial, studiohdr_t *pStudioHdr, studioloddata_t *pStudioLOD )
+{
+	// Performance analysis.
+//	VPROF_BUDGET( "Decals", "Decals" );
+	VPROF( "DecalsDrawStudio" );
+
+	// It's possible for the index count to become zero due to decal retirement
+	int indexCount = decalMaterial.m_Indices.Count();
+	if ( indexCount == 0 )
+		return;
+
+	if ( !m_pRC->m_Config.m_bEnableHWMorph )
+	{
+		pStudioLOD = NULL;
+	}
+
+	bool bUseHWMorphing = ( pStudioLOD && ( pStudioLOD->m_pHWMorphDecalBoneRemap != NULL ) );
+	if ( bUseHWMorphing )
+	{
+		pRenderContext->BindMorph( MATERIAL_MORPH_DECAL );
+	}
+
+	// Bind the decal material
+	if ( !m_pRC->m_Config.bWireframeDecals )
+	{
+		pRenderContext->Bind( decalMaterial.m_pMaterial );
+	}
+	else
+	{
+		pRenderContext->Bind( m_pMaterialMRMWireframe );
+	}
+
+	// Use a dynamic mesh...
+	IMesh* pMesh = pRenderContext->GetDynamicMesh();
+
+	int vertexCount = decalMaterial.m_Vertices.Count();
+
+	CMeshBuilder meshBuilder;
+	meshBuilder.Begin( pMesh, MATERIAL_TRIANGLES, vertexCount, indexCount );
+
+	// FIXME: Could make static meshes for these?
+	// But don't make no static meshes for decals that fade, at least
+
+	// Two possibilities: no/one bones, we let the hardware do all transformation
+	// or, more than one bone, we do software skinning.
+	bool bDraw = true;
+	if ( m_pStudioHdr->numbones <= 1 )
+	{
+		if ( m_pStudioHdr->numflexdesc != 0 )
+		{
+			DrawSingleBoneFlexedDecals( pRenderContext, meshBuilder, decalMaterial );
+		}
+		else
+		{
+			DrawSingleBoneDecals( meshBuilder, decalMaterial );
+		}
+	}
+	else
+	{
+		if ( m_pStudioHdr->numflexdesc != 0 )
+		{
+			if ( !DrawMultiBoneFlexedDecals( pRenderContext, meshBuilder, decalMaterial, pStudioHdr, pStudioLOD ) )
+			{
+				bDraw = false;
+			}
+		}
+		else
+		{
+			if ( !DrawMultiBoneDecals( meshBuilder, decalMaterial, pStudioHdr ) )
+			{
+				bDraw = false;
+			}
+		}
+	}
+
+	// Set the indices
+	// This is a little tricky. Because we can retire decals, the indices
+	// for each decal start at 0. We output all the vertices in order of
+	// each decal, and then fix up the indices based on how many vertices
+	// we wrote out for the decals
+	unsigned short decal = decalMaterial.m_Decals.Head();
+	int indicesRemaining = decalMaterial.m_Decals[decal].m_IndexCount;
+	int vertexOffset = 0;
+	for ( int i = 0; i < indexCount; ++i)
+	{
+		meshBuilder.Index( decalMaterial.m_Indices[i] + vertexOffset ); 
+		meshBuilder.AdvanceIndex();
+		if (--indicesRemaining <= 0)
+		{
+			vertexOffset += decalMaterial.m_Decals[decal].m_VertexCount;
+			decal = decalMaterial.m_Decals.Next(decal); 
+			if (decal != decalMaterial.m_Decals.InvalidIndex())
+			{
+				indicesRemaining = decalMaterial.m_Decals[decal].m_IndexCount;
+			}
+#ifdef _DEBUG
+			else
+			{
+				Assert( i + 1 == indexCount );
+			}
+#endif
+		}
+	}
+
+	meshBuilder.End();
+	if ( bDraw )
+	{
+		pMesh->Draw();
+	}
+	else
+	{
+		pMesh->MarkAsDrawn();
+	}
+
+	if ( bUseHWMorphing )
+	{
+		pRenderContext->BindMorph( NULL );
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Setup the render state for decals if object has lighting baked.
+//-----------------------------------------------------------------------------
+static Vector s_pWhite[6] = 
+{
+	Vector( 1.0, 1.0, 1.0 ),
+	Vector( 1.0, 1.0, 1.0 ),
+	Vector( 1.0, 1.0, 1.0 ),
+	Vector( 1.0, 1.0, 1.0 ),
+	Vector( 1.0, 1.0, 1.0 ),
+	Vector( 1.0, 1.0, 1.0 )
+};
+
+bool CStudioRender::PreDrawDecal( IMatRenderContext *pRenderContext, const DrawModelInfo_t &drawInfo )
+{
+	if ( !drawInfo.m_bStaticLighting )
+		return false;
+
+	// FIXME: This is incredibly bogus, 
+	// it's overwriting lighting state in the context without restoring it!
+	const Vector *pAmbient;
+	if ( m_pRC->m_Config.fullbright )
+	{			
+		pAmbient = s_pWhite;
+		m_pRC->m_NumLocalLights = 0;
+	}
+	else
+	{
+		pAmbient = drawInfo.m_vecAmbientCube;
+		m_pRC->m_NumLocalLights = CopyLocalLightingState( MAXLOCALLIGHTS, m_pRC->m_LocalLights,
+			drawInfo.m_nLocalLightCount, drawInfo.m_LocalLightDescs );
+	}
+
+	for( int i = 0; i < 6; i++ )
+	{
+		VectorCopy( pAmbient[i], m_pRC->m_LightBoxColors[i].AsVector3D() );
+		m_pRC->m_LightBoxColors[i][3] = 1.0f;
+	}
+
+	SetLightingRenderState();
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// Draws all the decals on a particular model
+//-----------------------------------------------------------------------------
+void CStudioRender::DrawDecal( const DrawModelInfo_t &drawInfo, int lod, int body )
+{
+	StudioDecalHandle_t handle = drawInfo.m_Decals;
+	if ( handle == STUDIORENDER_DECAL_INVALID )
+		return;
+
+	VPROF("CStudioRender::DrawDecal");
+
+	CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
+	PreDrawDecal( pRenderContext, drawInfo );
+
+	// All decal vertex data is are stored in pose space
+	// So as long as the pose-to-world transforms are set, we're all ready!
+
+	// FIXME: Body stuff isn't hooked in at all for decals
+
+	// Get the decal list for this lod
+	const DecalModelList_t& list = m_DecalList[(int)handle];
+	m_pStudioHdr = drawInfo.m_pStudioHdr;
+
+	// Add this fix after I fix the other problem.
+	studioloddata_t *pStudioLOD = NULL;
+	if ( m_pStudioHdr->numbones <= 1 )
+	{
+		pRenderContext->SetNumBoneWeights( m_pStudioHdr->numbones );
+		pRenderContext->MatrixMode( MATERIAL_MODEL );
+		pRenderContext->LoadMatrix( m_PoseToWorld[0] );
+	}
+	else
+	{
+		pStudioLOD = &drawInfo.m_pHardwareData->m_pLODs[lod];
+		if ( !m_pRC->m_Config.m_bEnableHWMorph || !pStudioLOD->m_pHWMorphDecalBoneRemap )
+		{
+			pRenderContext->SetNumBoneWeights( 0 );
+			pRenderContext->MatrixMode( MATERIAL_MODEL );
+			pRenderContext->LoadIdentity( );
+		}
+		else
+		{
+			// Set up skinning for decal rendering with hw morphs
+			pRenderContext->SetNumBoneWeights( pStudioLOD->m_nDecalBoneCount );
+
+			// Bone 0 is always identity; necessary to multiple against non hw-morphed verts
+			matrix3x4_t identity;
+			SetIdentityMatrix( identity );
+			pRenderContext->LoadBoneMatrix( 0, identity );
+
+			// Set up the bone state from the mapping computed in ComputeHWMorphDecalBoneRemap
+			for ( int i = 0; i < m_pStudioHdr->numbones; ++i )
+			{
+				int nHWBone = pStudioLOD->m_pHWMorphDecalBoneRemap[i];
+				if ( nHWBone <= 0 )
+					continue;
+
+				pRenderContext->LoadBoneMatrix( nHWBone, m_PoseToWorld[i] );
+			}
+		}
+	}
+
+	// Gotta do this for all LODs
+	// Draw each set of decals using a particular material
+	unsigned short mat = list.m_pLod[lod].m_FirstMaterial;
+	for ( ; mat != m_DecalMaterial.InvalidIndex(); mat = m_DecalMaterial.Next(mat))
+	{
+		DecalMaterial_t& decalMaterial = m_DecalMaterial[mat];
+		DrawDecalMaterial( pRenderContext, decalMaterial, m_pStudioHdr, pStudioLOD );
+	}
+}
+
+
+void CStudioRender::DrawStaticPropDecals( const DrawModelInfo_t &drawInfo, const StudioRenderContext_t &rc, const matrix3x4_t &modelToWorld )
+{
+	StudioDecalHandle_t handle = drawInfo.m_Decals;
+	if (handle == STUDIORENDER_DECAL_INVALID)
+		return;
+
+	m_pRC = const_cast< StudioRenderContext_t* >( &rc );
+
+	VPROF("CStudioRender::DrawStaticPropDecals");
+	CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
+	PreDrawDecal( pRenderContext, drawInfo );
+
+	// All decal vertex data is are stored in pose space
+	// So as long as the pose-to-world transforms are set, we're all ready!
+
+	// FIXME: Body stuff isn't hooked in at all for decals
+
+	pRenderContext->MatrixMode( MATERIAL_MODEL );
+	pRenderContext->LoadMatrix( modelToWorld );
+
+	const DecalModelList_t& list = m_DecalList[(int)handle];
+	// Gotta do this for all LODs
+	// Draw each set of decals using a particular material
+	unsigned short mat = list.m_pLod[drawInfo.m_Lod].m_FirstMaterial;
+	for ( ; mat != m_DecalMaterial.InvalidIndex(); mat = m_DecalMaterial.Next(mat))
+	{
+		DecalMaterial_t& decalMaterial = m_DecalMaterial[mat];
+		DrawDecalMaterial( pRenderContext, decalMaterial, drawInfo.m_pStudioHdr, NULL );
+	}
+
+	m_pRC = NULL;
+}
+