public void Init(
Vector3 positionOffset, Vector3 positionScale,
Vector3[] positions, int vertexCount,
MyVoxelTriangle[] triangles, int triangleCount)
{
if (vertexCount == 0)
{
VoxelVerticesCount = 0;
VoxelTrianglesCount = 0;
m_octree = null;
m_positions = null;
return;
}
Debug.Assert(vertexCount <= Int16.MaxValue);
// copy voxel vertices
m_positionOffset = positionOffset;
m_positionScale = positionScale;
m_positions = new Vector3[vertexCount];
Array.Copy(positions, m_positions, vertexCount);
ProfilerShort.Begin("build octree");
if (m_octree == null)
m_octree = new MyOctree();
m_octree.Init(m_positions, vertexCount, triangles, triangleCount, out VoxelTriangles);
ProfilerShort.End();
// set size only after the arrays are fully allocated
VoxelVerticesCount = vertexCount;
VoxelTrianglesCount = triangleCount;
}
public void PrepareCache(
MyVoxelVertex[] vertices, int vertexCount,
MyVoxelTriangle[] triangles, int triangleCount,
float positionScale, Vector3 positionOffset,
bool createPhysicsShape)
{
using (m_syncRoot.AcquireExclusiveUsing())
{
if (vertexCount == 0)
{
VoxelVerticesCount = 0;
VoxelTrianglesCount = 0;
m_octree = null;
m_voxelVertices = null;
PositionOffset = new Vector3(0f);
PositionScale = 0f;
return;
}
Debug.Assert(vertexCount <= Int16.MaxValue);
// copy voxel vertices
m_voxelVertices = new MyPackedVoxelVertex[vertexCount];
for (int i = 0; i < vertexCount; i++)
m_voxelVertices[i] = (MyPackedVoxelVertex)vertices[i];
Profiler.Begin("build octree");
if (m_octree == null)
m_octree = new MyOctree();
m_octree.Init(ref m_voxelVertices, ref vertexCount, ref triangles, ref triangleCount, out VoxelTriangles);
Profiler.End();
// set size only after the arrays are fully allocated
VoxelVerticesCount = vertexCount;
VoxelTrianglesCount = triangleCount;
PositionOffset = positionOffset;
PositionScale = positionScale;
if (createPhysicsShape)
CreateMeshShape();
}
}
// This methods needs to be called after every cell cache released!! It releases vertex buffer. It's important,
// because when this cell cache will be associated to a new cell, not same material vertex buffer will be used so unused needs to be disposed!!
public void Reset()
{
using (m_syncRoot.AcquireExclusiveUsing())
{
if (!m_meshShape.Base.IsZero)
{
MyPhysics.AssertThread();
Debug.Assert(m_meshShape.Base.ReferenceCount > 0);
m_meshShape.Base.RemoveReference();
}
m_meshShape = (HkBvCompressedMeshShape)HkShape.Empty;
VoxelTrianglesCount = 0;
VoxelTriangles = null;
m_octree = null;
VoxelVerticesCount = 0;
m_voxelVertices = null;
Key = INVALID_KEY;
m_octree = null;
}
}