void Disp_BuildVirtualMesh( int contentsMask )
{
CUtlVector<CPhysCollide *> virtualMeshes;
virtualMeshes.EnsureCount( g_CoreDispInfos.Count() );
for ( int i = 0; i < g_CoreDispInfos.Count(); i++ )
{
CCoreDispInfo *pDispInfo = g_CoreDispInfos[ i ];
mapdispinfo_t *pMapDisp = &mapdispinfo[ i ];
virtualMeshes[i] = NULL;
// not solid for this pass
if ( !(pMapDisp->contents & contentsMask) )
continue;
// Build a triangle list. This shares the tesselation code with the engine.
CUtlVector<unsigned short> indices;
CVBSPTesselateHelper helper;
helper.m_pIndices = &indices;
helper.m_pActiveVerts = pDispInfo->GetAllowedVerts().Base();
helper.m_pPowerInfo = pDispInfo->GetPowerInfo();
::TesselateDisplacement( &helper );
// validate the collision data
if ( 1 )
{
int triCount = indices.Count() / 3;
for ( int j = 0; j < triCount; j++ )
{
int index = j * 3;
Vector v0 = pDispInfo->GetVert( indices[index+0] );
Vector v1 = pDispInfo->GetVert( indices[index+1] );
Vector v2 = pDispInfo->GetVert( indices[index+2] );
if ( v0 == v1 || v1 == v2 || v2 == v0 )
{
Warning( "Displacement %d has bad geometry near %.2f %.2f %.2f\n", i, v0.x, v0.y, v0.z );
texinfo_t *pTexInfo = &texinfo[pMapDisp->face.texinfo];
dtexdata_t *pTexData = GetTexData( pTexInfo->texdata );
const char *pMatName = TexDataStringTable_GetString( pTexData->nameStringTableID );
Error( "Can't compile displacement physics, exiting. Texture is %s\n", pMatName );
}
}
}
CDispMeshEvent meshHandler( indices.Base(), indices.Count(), pDispInfo );
virtualmeshparams_t params;
params.buildOuterHull = true;
params.pMeshEventHandler = &meshHandler;
params.userData = &meshHandler;
virtualMeshes[i] = physcollision->CreateVirtualMesh( params );
}
unsigned int totalSize = 0;
CUtlBuffer buf;
dphysdisp_t header;
header.numDisplacements = g_CoreDispInfos.Count();
buf.PutObjects( &header );
CUtlVector<char> dispBuf;
for ( int i = 0; i < header.numDisplacements; i++ )
{
if ( virtualMeshes[i] )
{
unsigned int testSize = physcollision->CollideSize( virtualMeshes[i] );
totalSize += testSize;
buf.PutShort( testSize );
}
else
{
buf.PutShort( -1 );
}
}
for ( int i = 0; i < header.numDisplacements; i++ )
{
if ( virtualMeshes[i] )
{
unsigned int testSize = physcollision->CollideSize( virtualMeshes[i] );
dispBuf.RemoveAll();
dispBuf.EnsureCount(testSize);
unsigned int outSize = physcollision->CollideWrite( dispBuf.Base(), virtualMeshes[i], false );
Assert( outSize == testSize );
buf.Put( dispBuf.Base(), outSize );
}
}
g_PhysDispSize = totalSize + sizeof(dphysdisp_t) + (sizeof(unsigned short) * header.numDisplacements);
Assert( buf.TellMaxPut() == g_PhysDispSize );
g_PhysDispSize = buf.TellMaxPut();
g_pPhysDisp = new byte[g_PhysDispSize];
Q_memcpy( g_pPhysDisp, buf.Base(), g_PhysDispSize );
}
