unsafe private void ProcessMesh(hkaiNavMesh mesh)
{
var verts = mesh.m_vertices;
int indexCount = 0;
foreach (var f in mesh.m_faces)
{
// Simple formula for indices count for a triangulation of a poly
indexCount += (f.m_numEdges - 2) * 3;
}
var MeshIndices = new int[indexCount * 3];
var MeshVertices = new NavmeshLayout[indexCount * 3];
PickingVertices = new Vector3[indexCount * 3];
PickingIndices = new int[indexCount * 3];
var factory = Scene.Renderer.Factory;
int idx = 0;
int maxcluster = 0;
for (int id = 0; id < mesh.m_faces.Count; id++)
{
if (mesh.m_faces[id].m_clusterIndex > maxcluster)
{
maxcluster = mesh.m_faces[id].m_clusterIndex;
}
var sedge = mesh.m_faces[id].m_startEdgeIndex;
var ecount = mesh.m_faces[id].m_numEdges;
// Use simple algorithm for convex polygon trianglization
for (int t = 0; t < ecount - 2; t++)
{
if (ecount > 3)
{
//ecount = ecount;
}
var end = (t + 2 >= ecount) ? sedge : sedge + t + 2;
var vert1 = mesh.m_vertices[mesh.m_edges[sedge].m_a];
var vert2 = mesh.m_vertices[mesh.m_edges[sedge + t + 1].m_a];
var vert3 = mesh.m_vertices[mesh.m_edges[end].m_a];
MeshVertices[idx] = new NavmeshLayout();
MeshVertices[idx + 1] = new NavmeshLayout();
MeshVertices[idx + 2] = new NavmeshLayout();
MeshVertices[idx].Position = new Vector3(vert1.X, vert1.Y, vert1.Z);
MeshVertices[idx + 1].Position = new Vector3(vert2.X, vert2.Y, vert2.Z);
MeshVertices[idx + 2].Position = new Vector3(vert3.X, vert3.Y, vert3.Z);
PickingVertices[idx] = new Vector3(vert1.X, vert1.Y, vert1.Z);
PickingVertices[idx + 1] = new Vector3(vert2.X, vert2.Y, vert2.Z);
PickingVertices[idx + 2] = new Vector3(vert3.X, vert3.Y, vert3.Z);
var n = Vector3.Normalize(Vector3.Cross(MeshVertices[idx + 2].Position - MeshVertices[idx].Position, MeshVertices[idx + 1].Position - MeshVertices[idx].Position));
MeshVertices[idx].Normal[0] = (sbyte)(n.X * 127.0f);
MeshVertices[idx].Normal[1] = (sbyte)(n.Y * 127.0f);
MeshVertices[idx].Normal[2] = (sbyte)(n.Z * 127.0f);
MeshVertices[idx + 1].Normal[0] = (sbyte)(n.X * 127.0f);
MeshVertices[idx + 1].Normal[1] = (sbyte)(n.Y * 127.0f);
MeshVertices[idx + 1].Normal[2] = (sbyte)(n.Z * 127.0f);
MeshVertices[idx + 2].Normal[0] = (sbyte)(n.X * 127.0f);
MeshVertices[idx + 2].Normal[1] = (sbyte)(n.Y * 127.0f);
MeshVertices[idx + 2].Normal[2] = (sbyte)(n.Z * 127.0f);
MeshVertices[idx].Color[0] = (byte)(157);
MeshVertices[idx].Color[1] = (byte)(53);
MeshVertices[idx].Color[2] = (byte)(255);
MeshVertices[idx].Color[3] = (byte)(255);
MeshVertices[idx + 1].Color[0] = (byte)(157);
MeshVertices[idx + 1].Color[1] = (byte)(53);
MeshVertices[idx + 1].Color[2] = (byte)(255);
MeshVertices[idx + 1].Color[3] = (byte)(255);
MeshVertices[idx + 2].Color[0] = (byte)(157);
MeshVertices[idx + 2].Color[1] = (byte)(53);
MeshVertices[idx + 2].Color[2] = (byte)(255);
MeshVertices[idx + 2].Color[3] = (byte)(255);
MeshVertices[idx].Barycentric[0] = (byte)(0);
MeshVertices[idx].Barycentric[1] = (byte)(0);
MeshVertices[idx + 1].Barycentric[0] = (byte)(1);
MeshVertices[idx + 1].Barycentric[1] = (byte)(0);
MeshVertices[idx + 2].Barycentric[0] = (byte)(0);
MeshVertices[idx + 2].Barycentric[1] = (byte)(1);
MeshIndices[idx] = idx;
MeshIndices[idx + 1] = idx + 1;
MeshIndices[idx + 2] = idx + 2;
PickingIndices[idx] = idx;
PickingIndices[idx + 1] = idx + 1;
PickingIndices[idx + 2] = idx + 2;
idx += 3;
}
}
VertexCount = MeshVertices.Length;
IndexCount = MeshIndices.Length;
uint buffersize = (uint)IndexCount * 4u;
if (VertexCount > 0)
{
fixed(void *ptr = PickingVertices)
{
Bounds = BoundingBox.CreateFromPoints((Vector3 *)ptr, PickingVertices.Count(), 12, Quaternion.Identity, Vector3.Zero, Vector3.One);
}
}
else
{
Bounds = new BoundingBox();
}
uint vbuffersize = (uint)MeshVertices.Length * NavmeshLayout.SizeInBytes;
GeomBuffer = Scene.Renderer.GeometryBufferAllocator.Allocate(vbuffersize, buffersize, (int)NavmeshLayout.SizeInBytes, 4, (h) =>
{
h.FillIBuffer(MeshIndices, () =>
{
MeshIndices = null;
});
h.FillVBuffer(MeshVertices, () =>
{
MeshVertices = null;
});
});
}
unsafe private void ProcessMesh(NVM mesh)
{
var verts = mesh.Vertices;
var MeshIndices = new int[mesh.Triangles.Count * 3];
var MeshVertices = new NavmeshLayout[mesh.Triangles.Count * 3];
PickingVertices = new Vector3[mesh.Triangles.Count * 3];
PickingIndices = new int[mesh.Triangles.Count * 3];
var factory = Scene.Renderer.Factory;
for (int id = 0; id < mesh.Triangles.Count; id++)
{
var i = id * 3;
var vert1 = mesh.Vertices[mesh.Triangles[id].VertexIndex1];
var vert2 = mesh.Vertices[mesh.Triangles[id].VertexIndex2];
var vert3 = mesh.Vertices[mesh.Triangles[id].VertexIndex3];
MeshVertices[i] = new NavmeshLayout();
MeshVertices[i + 1] = new NavmeshLayout();
MeshVertices[i + 2] = new NavmeshLayout();
MeshVertices[i].Position = new Vector3(vert1.X, vert1.Y, vert1.Z);
MeshVertices[i + 1].Position = new Vector3(vert2.X, vert2.Y, vert2.Z);
MeshVertices[i + 2].Position = new Vector3(vert3.X, vert3.Y, vert3.Z);
PickingVertices[i] = new Vector3(vert1.X, vert1.Y, vert1.Z);
PickingVertices[i + 1] = new Vector3(vert2.X, vert2.Y, vert2.Z);
PickingVertices[i + 2] = new Vector3(vert3.X, vert3.Y, vert3.Z);
var n = Vector3.Normalize(Vector3.Cross(MeshVertices[i + 2].Position - MeshVertices[i].Position, MeshVertices[i + 1].Position - MeshVertices[i].Position));
MeshVertices[i].Normal[0] = (sbyte)(n.X * 127.0f);
MeshVertices[i].Normal[1] = (sbyte)(n.Y * 127.0f);
MeshVertices[i].Normal[2] = (sbyte)(n.Z * 127.0f);
MeshVertices[i + 1].Normal[0] = (sbyte)(n.X * 127.0f);
MeshVertices[i + 1].Normal[1] = (sbyte)(n.Y * 127.0f);
MeshVertices[i + 1].Normal[2] = (sbyte)(n.Z * 127.0f);
MeshVertices[i + 2].Normal[0] = (sbyte)(n.X * 127.0f);
MeshVertices[i + 2].Normal[1] = (sbyte)(n.Y * 127.0f);
MeshVertices[i + 2].Normal[2] = (sbyte)(n.Z * 127.0f);
MeshVertices[i].Color[0] = (byte)(157);
MeshVertices[i].Color[1] = (byte)(53);
MeshVertices[i].Color[2] = (byte)(255);
MeshVertices[i].Color[3] = (byte)(255);
MeshVertices[i + 1].Color[0] = (byte)(157);
MeshVertices[i + 1].Color[1] = (byte)(53);
MeshVertices[i + 1].Color[2] = (byte)(255);
MeshVertices[i + 1].Color[3] = (byte)(255);
MeshVertices[i + 2].Color[0] = (byte)(157);
MeshVertices[i + 2].Color[1] = (byte)(53);
MeshVertices[i + 2].Color[2] = (byte)(255);
MeshVertices[i + 2].Color[3] = (byte)(255);
MeshVertices[i].Barycentric[0] = (byte)(0);
MeshVertices[i].Barycentric[1] = (byte)(0);
MeshVertices[i + 1].Barycentric[0] = (byte)(1);
MeshVertices[i + 1].Barycentric[1] = (byte)(0);
MeshVertices[i + 2].Barycentric[0] = (byte)(0);
MeshVertices[i + 2].Barycentric[1] = (byte)(1);
MeshIndices[i] = i;
MeshIndices[i + 1] = i + 1;
MeshIndices[i + 2] = i + 2;
PickingIndices[i] = i;
PickingIndices[i + 1] = i + 1;
PickingIndices[i + 2] = i + 2;
}
VertexCount = MeshVertices.Length;
IndexCount = MeshIndices.Length;
uint buffersize = (uint)IndexCount * 4u;
if (VertexCount > 0)
{
fixed(void *ptr = PickingVertices)
{
Bounds = BoundingBox.CreateFromPoints((Vector3 *)ptr, PickingVertices.Count(), 12, Quaternion.Identity, Vector3.Zero, Vector3.One);
}
}
else
{
Bounds = new BoundingBox();
}
uint vbuffersize = (uint)MeshVertices.Length * NavmeshLayout.SizeInBytes;
GeomBuffer = Scene.Renderer.GeometryBufferAllocator.Allocate(vbuffersize, buffersize, (int)NavmeshLayout.SizeInBytes, 4, (h) =>
{
h.FillIBuffer(MeshIndices, () =>
{
MeshIndices = null;
});
h.FillVBuffer(MeshVertices, () =>
{
MeshVertices = null;
});
});
}
