// Merge these input hulls.
virtual hacd::HaU32 mergeHulls(const MergeHullVector &inputHulls,
MergeHullVector &outputHulls,
hacd::HaU32 mergeHullCount,
hacd::HaF32 smallClusterThreshold,
hacd::HaU32 maxHullVertices)
{
mGuid = 0;
HaU32 count = (HaU32)inputHulls.size();
mHasBeenTested = HACD_NEW(TestedMap)(count*count);
mSmallClusterThreshold = smallClusterThreshold;
mMaxHullVertices = maxHullVertices;
mMergeNumHulls = mergeHullCount;
mTotalVolume = 0;
for (HaU32 i=0; i<inputHulls.size(); i++)
{
const MergeHull &h = inputHulls[i];
ChUll *ch = HACD_NEW(ChUll)(h.mVertexCount,h.mVertices,h.mTriangleCount,h.mIndices,mGuid++);
mChulls.push_back(ch);
mTotalVolume+=ch->mVolume;
}
for(;;)
{
bool combined = combineHulls(); // mege smallest hulls first, up to the max merge count.
if ( !combined ) break;
}
// return results..
for (HaU32 i=0; i<mChulls.size(); i++)
{
ChUll *ch = mChulls[i];
MergeHull mh;
mh.mVertexCount = ch->mVertexCount;
mh.mTriangleCount = ch->mTriangleCount;
mh.mIndices = ch->mIndices;
mh.mVertices = ch->mVertices;
outputHulls.push_back(mh);
}
delete mHasBeenTested;
return (HaU32)outputHulls.size();
}
// Merge these input hulls.
virtual hacd::HaU32 mergeHulls(const MergeHullVector &inputHulls,
MergeHullVector &outputHulls,
hacd::HaU32 mergeHullCount,
hacd::HaF32 smallClusterThreshold,
hacd::HaU32 maxHullVertices,
hacd::ICallback *callback,
JOB_SWARM_STANDALONE::JobSwarmContext *jobSwarmContext)
{
mGuid = 0;
HaU32 count = (HaU32)inputHulls.size();
mHasBeenTested = HACD_NEW(TestedMap)(count*count);
mSmallClusterThreshold = smallClusterThreshold;
mMaxHullVertices = maxHullVertices;
mMergeNumHulls = mergeHullCount;
mTotalVolume = 0;
for (HaU32 i=0; i<inputHulls.size(); i++)
{
const MergeHull &h = inputHulls[i];
CHull *ch = HACD_NEW(CHull)(h.mVertexCount,h.mVertices,h.mTriangleCount,h.mIndices,mGuid++);
mChulls.push_back(ch);
mTotalVolume+=ch->mVolume;
if ( callback )
{
HaF32 fraction = (HaF32)i / (HaF32)inputHulls.size();
callback->ReportProgress("Gathering Hulls To Merge", fraction );
}
}
//
hacd::HaU32 mergeCount = count - mergeHullCount;
hacd::HaU32 mergeIndex = 0;
for(;;)
{
if ( callback )
{
hacd::HaF32 fraction = (hacd::HaF32)mergeIndex / (hacd::HaF32)mergeCount;
callback->ReportProgress("Merging", fraction );
}
bool combined = combineHulls(jobSwarmContext); // mege smallest hulls first, up to the max merge count.
if ( !combined ) break;
mergeIndex++;
}
// return results..
for (HaU32 i=0; i<mChulls.size(); i++)
{
CHull *ch = mChulls[i];
MergeHull mh;
mh.mVertexCount = ch->mVertexCount;
mh.mTriangleCount = ch->mTriangleCount;
mh.mIndices = ch->mIndices;
mh.mVertices = ch->mVertices;
outputHulls.push_back(mh);
if ( callback )
{
HaF32 fraction = (HaF32)i / (HaF32)mChulls.size();
callback->ReportProgress("Gathering Merged Hulls Output", fraction );
}
}
delete mHasBeenTested;
return (HaU32)outputHulls.size();
}
virtual hacd::HaU32 performHACD(const Desc &desc)
{
hacd::HaU32 ret = 0;
releaseHACD();
if ( desc.mVertexCount )
{
{
dgMeshEffect mesh(true);
float normal[3] = { 0,1,0 };
float uv[2] = { 0,0 };
hacd::HaI32 *faceIndexCount = (hacd::HaI32 *)HACD_ALLOC(sizeof(hacd::HaI32)*desc.mTriangleCount);
hacd::HaI32 *dummyIndex = (hacd::HaI32 *)HACD_ALLOC(sizeof(hacd::HaI32)*desc.mTriangleCount*3);
for (hacd::HaU32 i=0; i<desc.mTriangleCount; i++)
{
faceIndexCount[i] = 3;
dummyIndex[i*3+0] = 0;
dummyIndex[i*3+1] = 0;
dummyIndex[i*3+2] = 0;
}
mesh.BuildFromVertexListIndexList(desc.mTriangleCount,faceIndexCount,dummyIndex,
desc.mVertices,sizeof(hacd::HaF32)*3,(const hacd::HaI32 *const)desc.mIndices,
normal,sizeof(hacd::HaF32)*3,dummyIndex,
uv,sizeof(hacd::HaF32)*2,dummyIndex,
uv,sizeof(hacd::HaF32)*2,dummyIndex);
dgMeshEffect *result = mesh.CreateConvexApproximation(desc.mConcavity,desc.mMaxHullCount, desc.mCallback);
if ( result )
{
// now we build hulls for each connected surface...
dgPolyhedra segment;
result->BeginConectedSurface();
if ( result->GetConectedSurface(segment))
{
dgMeshEffect *solid = HACD_NEW(dgMeshEffect)(segment,*result);
while ( solid )
{
dgConvexHull3d *hull = solid->CreateConvexHull(0.00001,desc.mMaxHullVertices);
if ( hull )
{
Hull h;
h.mVertexCount = hull->GetVertexCount();
h.mVertices = (hacd::HaF32 *)HACD_ALLOC( sizeof(hacd::HaF32)*3*h.mVertexCount);
for (hacd::HaU32 i=0; i<h.mVertexCount; i++)
{
hacd::HaF32 *dest = (hacd::HaF32 *)&h.mVertices[i*3];
const dgBigVector &source = hull->GetVertex(i);
dest[0] = (hacd::HaF32)source.m_x;
dest[1] = (hacd::HaF32)source.m_y;
dest[2] = (hacd::HaF32)source.m_z;
}
h.mTriangleCount = hull->GetCount();
hacd::HaU32 *destIndices = (hacd::HaU32 *)HACD_ALLOC(sizeof(hacd::HaU32)*3*h.mTriangleCount);
h.mIndices = destIndices;
dgList<dgConvexHull3DFace>::Iterator iter(*hull);
for (iter.Begin(); iter; iter++)
{
dgConvexHull3DFace &face = (*iter);
destIndices[0] = face.m_index[0];
destIndices[1] = face.m_index[1];
destIndices[2] = face.m_index[2];
destIndices+=3;
}
mHulls.push_back(h);
// save it!
delete hull;
}
delete solid;
solid = NULL;
dgPolyhedra nextSegment;
hacd::HaI32 moreSegments = result->GetConectedSurface(nextSegment);
if ( moreSegments )
{
solid = HACD_NEW(dgMeshEffect)(nextSegment,*result);
}
else
{
result->EndConectedSurface();
}
}
}
delete result;
}
ret= (HaU32)mHulls.size();
}
}
//if (desc.mCallback)
// desc.mCallback->ReportProgress("+ Merging Hulls\n", 99.0f);
if ( ret && ((ret > desc.mMaxMergeHullCount) ||
(desc.mSmallClusterThreshold != 0.0f)) )
{
MergeHullsInterface *mhi = createMergeHullsInterface();
if ( mhi )
{
MergeHullVector inputHulls;
MergeHullVector outputHulls;
for (hacd::HaU32 i=0; i<ret; i++)
{
Hull &h = mHulls[i];
MergeHull mh;
mh.mTriangleCount = h.mTriangleCount;
mh.mVertexCount = h.mVertexCount;
mh.mVertices = h.mVertices;
mh.mIndices = h.mIndices;
inputHulls.push_back(mh);
}
ret = mhi->mergeHulls(inputHulls,outputHulls,desc.mMaxMergeHullCount, desc.mSmallClusterThreshold + FLT_EPSILON, desc.mMaxHullVertices);
for (HaU32 i=0; i<ret; i++)
{
Hull &h = mHulls[i];
releaseHull(h);
}
mHulls.clear();
for (hacd::HaU32 i=0; i<outputHulls.size(); i++)
{
Hull h;
const MergeHull &mh = outputHulls[i];
h.mTriangleCount = mh.mTriangleCount;
h.mVertexCount = mh.mVertexCount;
h.mIndices = (HaU32 *)HACD_ALLOC(sizeof(HaU32)*3*h.mTriangleCount);
h.mVertices = (HaF32 *)HACD_ALLOC(sizeof(HaF32)*3*h.mVertexCount);
memcpy((HaU32 *)h.mIndices,mh.mIndices,sizeof(HaU32)*3*h.mTriangleCount);
memcpy((HaF32 *)h.mVertices,mh.mVertices,sizeof(HaF32)*3*h.mVertexCount);
mHulls.push_back(h);
}
ret = (HaU32)mHulls.size();
mhi->release();
}
}
return ret;
}
