void DecalManager::clearData()
{
mClearDataSignal.trigger();
// Free all geometry buffers.
if( mData )
{
const Vector< DecalSphere* > grid = mData->getGrid();
for( U32 i = 0; i < grid.size(); ++ i )
{
DecalSphere* sphere = grid[ i ];
for( U32 n = 0; n < sphere->mItems.size(); ++ n )
_freeBuffers( sphere->mItems[ n ] );
}
}
mData = NULL;
mDecalInstanceVec.clear();
}
void DecalManager::removeDecal( DecalInstance *inst )
{
// If this is a decal we save then we need
// to set the dirty flag.
if ( inst->mFlags & SaveDecal )
mDirty = true;
// Remove the decal from the instance vector.
if( inst->mId != -1 && inst->mId < mDecalInstanceVec.size() )
mDecalInstanceVec[ inst->mId ] = NULL;
// Release its geometry (if it has any).
_freeBuffers( inst );
// Remove it from the decal file.
if ( mData )
mData->removeDecal( inst );
}
bool Ultrasonic::sampleCreate(size_t numBufs, ...)
{
bool result = false;
va_list ap;
_numBufs = numBufs;
if((_pBuffers = (BufCtl *) calloc(numBufs, sizeof(BufCtl))) != NULL)
{
va_start(ap, numBufs);
BufCtl *buf;
size_t smpSize;
for(size_t i = 0; i < _numBufs; i++)
{
buf = &_pBuffers[i];
smpSize = va_arg(ap, size_t);
if((buf->pBegin = (float *) calloc(smpSize, sizeof(float))) != NULL)
{
buf->pIndex = buf->pBegin;
buf->length = smpSize;
buf->filled = false;
result = true;
}
else
{
result = false;
break;
}
}
va_end(ap);
}
if(!result) _freeBuffers();
return result;
}
bool DecalManager::clipDecal( DecalInstance *decal, Vector<Point3F> *edgeVerts, const Point2F *clipDepth )
{
PROFILE_SCOPE( DecalManager_clipDecal );
// Free old verts and indices.
_freeBuffers( decal );
ClippedPolyList clipper;
clipper.mNormal.set( Point3F( 0, 0, 0 ) );
clipper.mPlaneList.setSize(6);
F32 halfSize = decal->mSize * 0.5f;
// Ugly hack for ProjectedShadow!
F32 halfSizeZ = clipDepth ? clipDepth->x : halfSize;
F32 negHalfSize = clipDepth ? clipDepth->y : halfSize;
Point3F decalHalfSize( halfSize, halfSize, halfSize );
Point3F decalHalfSizeZ( halfSizeZ, halfSizeZ, halfSizeZ );
MatrixF projMat( true );
decal->getWorldMatrix( &projMat );
const VectorF &crossVec = decal->mNormal;
const Point3F &decalPos = decal->mPosition;
VectorF newFwd, newRight;
projMat.getColumn( 0, &newRight );
projMat.getColumn( 1, &newFwd );
VectorF objRight( 1.0f, 0, 0 );
VectorF objFwd( 0, 1.0f, 0 );
VectorF objUp( 0, 0, 1.0f );
// See above re: decalHalfSizeZ hack.
clipper.mPlaneList[0].set( ( decalPos + ( -newRight * halfSize ) ), -newRight );
clipper.mPlaneList[1].set( ( decalPos + ( -newFwd * halfSize ) ), -newFwd );
clipper.mPlaneList[2].set( ( decalPos + ( -crossVec * decalHalfSizeZ ) ), -crossVec );
clipper.mPlaneList[3].set( ( decalPos + ( newRight * halfSize ) ), newRight );
clipper.mPlaneList[4].set( ( decalPos + ( newFwd * halfSize ) ), newFwd );
clipper.mPlaneList[5].set( ( decalPos + ( crossVec * negHalfSize ) ), crossVec );
clipper.mNormal = -decal->mNormal;
Box3F box( -decalHalfSizeZ, decalHalfSizeZ );
projMat.mul( box );
DecalData *decalData = decal->mDataBlock;
PROFILE_START( DecalManager_clipDecal_buildPolyList );
getContainer()->buildPolyList( box, decalData->clippingMasks, &clipper );
PROFILE_END();
clipper.cullUnusedVerts();
clipper.triangulate();
clipper.generateNormals();
if ( clipper.mVertexList.empty() )
return false;
#ifdef DECALMANAGER_DEBUG
mDebugPlanes.clear();
mDebugPlanes.merge( clipper.mPlaneList );
#endif
decal->mVertCount = clipper.mVertexList.size();
decal->mIndxCount = clipper.mIndexList.size();
Vector<Point3F> tmpPoints;
tmpPoints.push_back(( objFwd * decalHalfSize ) + ( objRight * decalHalfSize ));
tmpPoints.push_back(( objFwd * decalHalfSize ) + ( -objRight * decalHalfSize ));
tmpPoints.push_back(( -objFwd * decalHalfSize ) + ( -objRight * decalHalfSize ));
Point3F lowerLeft(( -objFwd * decalHalfSize ) + ( objRight * decalHalfSize ));
projMat.inverse();
_generateWindingOrder( lowerLeft, &tmpPoints );
BiQuadToSqr quadToSquare( Point2F( lowerLeft.x, lowerLeft.y ),
Point2F( tmpPoints[0].x, tmpPoints[0].y ),
Point2F( tmpPoints[1].x, tmpPoints[1].y ),
Point2F( tmpPoints[2].x, tmpPoints[2].y ) );
Point2F uv( 0, 0 );
Point3F vecX(0.0f, 0.0f, 0.0f);
// Allocate memory for vert and index arrays
_allocBuffers( decal );
Point3F vertPoint( 0, 0, 0 );
for ( U32 i = 0; i < clipper.mVertexList.size(); i++ )
{
const ClippedPolyList::Vertex &vert = clipper.mVertexList[i];
vertPoint = vert.point;
// Transform this point to
// object space to look up the
// UV coordinate for this vertex.
projMat.mulP( vertPoint );
// Clamp the point to be within the quad.
vertPoint.x = mClampF( vertPoint.x, -decalHalfSize.x, decalHalfSize.x );
vertPoint.y = mClampF( vertPoint.y, -decalHalfSize.y, decalHalfSize.y );
// Get our UV.
uv = quadToSquare.transform( Point2F( vertPoint.x, vertPoint.y ) );
const RectF &rect = decal->mDataBlock->texRect[decal->mTextureRectIdx];
uv *= rect.extent;
uv += rect.point;
// Set the world space vertex position.
decal->mVerts[i].point = vert.point;
decal->mVerts[i].texCoord.set( uv.x, uv.y );
decal->mVerts[i].normal = clipper.mNormalList[i];
decal->mVerts[i].normal.normalize();
if( mFabs( decal->mVerts[i].normal.z ) > 0.8f )
mCross( decal->mVerts[i].normal, Point3F( 1.0f, 0.0f, 0.0f ), &vecX );
else if ( mFabs( decal->mVerts[i].normal.x ) > 0.8f )
mCross( decal->mVerts[i].normal, Point3F( 0.0f, 1.0f, 0.0f ), &vecX );
else if ( mFabs( decal->mVerts[i].normal.y ) > 0.8f )
mCross( decal->mVerts[i].normal, Point3F( 0.0f, 0.0f, 1.0f ), &vecX );
decal->mVerts[i].tangent = mCross( decal->mVerts[i].normal, vecX );
}
U32 curIdx = 0;
for ( U32 j = 0; j < clipper.mPolyList.size(); j++ )
{
// Write indices for each Poly
ClippedPolyList::Poly *poly = &clipper.mPolyList[j];
AssertFatal( poly->vertexCount == 3, "Got non-triangle poly!" );
decal->mIndices[curIdx] = clipper.mIndexList[poly->vertexStart];
curIdx++;
decal->mIndices[curIdx] = clipper.mIndexList[poly->vertexStart + 1];
curIdx++;
decal->mIndices[curIdx] = clipper.mIndexList[poly->vertexStart + 2];
curIdx++;
}
if ( !edgeVerts )
return true;
Point3F tmpHullPt( 0, 0, 0 );
Vector<Point3F> tmpHullPts;
for ( U32 i = 0; i < clipper.mVertexList.size(); i++ )
{
const ClippedPolyList::Vertex &vert = clipper.mVertexList[i];
tmpHullPt = vert.point;
projMat.mulP( tmpHullPt );
tmpHullPts.push_back( tmpHullPt );
}
edgeVerts->clear();
U32 verts = _generateConvexHull( tmpHullPts, edgeVerts );
edgeVerts->setSize( verts );
projMat.inverse();
for ( U32 i = 0; i < edgeVerts->size(); i++ )
projMat.mulP( (*edgeVerts)[i] );
return true;
}
