41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
|
|
// SPDX-FileCopyrightText: 2021 Jorrit Rouwe
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
#include <Jolt/Jolt.h>
|
|
|
|
#include <Jolt/TriangleSplitter/TriangleSplitterMean.h>
|
|
|
|
JPH_NAMESPACE_BEGIN
|
|
|
|
TriangleSplitterMean::TriangleSplitterMean(const VertexList &inVertices, const IndexedTriangleList &inTriangles) :
|
|
TriangleSplitter(inVertices, inTriangles)
|
|
{
|
|
}
|
|
|
|
bool TriangleSplitterMean::Split(const Range &inTriangles, Range &outLeft, Range &outRight)
|
|
{
|
|
// Calculate mean value for these triangles
|
|
Vec3 mean = Vec3::sZero();
|
|
for (uint t = inTriangles.mBegin; t < inTriangles.mEnd; ++t)
|
|
mean += Vec3(mCentroids[mSortedTriangleIdx[t]]);
|
|
mean *= 1.0f / inTriangles.Count();
|
|
|
|
// Calculate deviation
|
|
Vec3 deviation = Vec3::sZero();
|
|
for (uint t = inTriangles.mBegin; t < inTriangles.mEnd; ++t)
|
|
{
|
|
Vec3 delta = Vec3(mCentroids[mSortedTriangleIdx[t]]) - mean;
|
|
deviation += delta * delta;
|
|
}
|
|
deviation *= 1.0f / inTriangles.Count();
|
|
|
|
// Calculate split plane
|
|
uint dimension = deviation.GetHighestComponentIndex();
|
|
float split = mean[dimension];
|
|
|
|
return SplitInternal(inTriangles, dimension, split, outLeft, outRight);
|
|
}
|
|
|
|
JPH_NAMESPACE_END
|