// this function will count the number of quads for our terrain
int Primitive_Count(CVolumeBuffer volume)
{
int count = 0;
int size = volume.Size;
for (int z = 0; z < size; ++z)
{
for (int y = 0; y < size; ++y)
{
for (int x = 0; x < size; ++x)
{
int value = volume.GetData(new Vector3(x, y, z));
// if we are in the blank space check and see if there is any valid terrain around us
if (value == 0)
{
if (volume.GetData_BoundarySafe(new Vector3(x + 1, y, z)) > 0)
{
count++;
}
if (volume.GetData_BoundarySafe(new Vector3(x - 1, y, z)) > 0)
{
count++;
}
if (volume.GetData_BoundarySafe(new Vector3(x, y + 1, z)) > 0)
{
count++;
}
if (volume.GetData_BoundarySafe(new Vector3(x, y - 1, z)) > 0)
{
count++;
}
if (volume.GetData_BoundarySafe(new Vector3(x, y, z + 1)) > 0)
{
count++;
}
if (volume.GetData_BoundarySafe(new Vector3(x, y, z - 1)) > 0)
{
count++;
}
}
}
}
}
return(count);
}
public void Generate(CVolumeBuffer volume)
{
int quad_count = Primitive_Count(volume);
int tri_count = quad_count * 2;
int vert_count = tri_count * 3;
// calculate total vertices we need
List <FatVertex> verts = new List <FatVertex>(vert_count);
int size = volume.Size;
for (int z = 0; z < size; ++z)
{
for (int y = 0; y < size; ++y)
{
for (int x = 0; x < size; ++x)
{
int value = volume.GetData(new Vector3(x, y, z));
if (value == 0)
{
if (volume.GetData_BoundarySafe(new Vector3(x + 1, y, z)) > 0)
{
CQuad newQuad = m_LookupMesh[1].Clone();
newQuad.Translate(new Vector3(x + 1, y, z));
verts.AddRange(newQuad.verts);
}
if (volume.GetData_BoundarySafe(new Vector3(x - 1, y, z)) > 0)
{
CQuad newQuad = m_LookupMesh[0].Clone();
newQuad.Translate(new Vector3(x - 1, y, z));
verts.AddRange(newQuad.verts);
}
if (volume.GetData_BoundarySafe(new Vector3(x, y + 1, z)) > 0)
{
CQuad newQuad = m_LookupMesh[3].Clone();
newQuad.Translate(new Vector3(x, y + 1, z));
verts.AddRange(newQuad.verts);
}
if (volume.GetData_BoundarySafe(new Vector3(x, y - 1, z)) > 0)
{
CQuad newQuad = m_LookupMesh[2].Clone();
newQuad.Translate(new Vector3(x, y - 1, z));
verts.AddRange(newQuad.verts);
}
if (volume.GetData_BoundarySafe(new Vector3(x, y, z + 1)) > 0)
{
CQuad newQuad = m_LookupMesh[5].Clone();
newQuad.Translate(new Vector3(x, y, z + 1));
verts.AddRange(newQuad.verts);
}
if (volume.GetData_BoundarySafe(new Vector3(x, y, z - 1)) > 0)
{
CQuad newQuad = m_LookupMesh[4].Clone();
newQuad.Translate(new Vector3(x, y, z - 1));
verts.AddRange(newQuad.verts);
}
}
}
}
}
var vb = Engine.Global.Device3d.CreateBuffer(new Device3dD3d11.SCreateBufferCmd()
{
Name = "VolumeDataVB",
SizeInBytes = (int)vert_count * m_VertDesc.SizeInBytes,
BufferBindFlags = BindFlags.VertexBuffer
});
m_MeshDesc.VBBinding = new VertexBufferBinding(vb, m_VertDesc.SizeInBytes, 0);
// update data buffer
Engine.Global.Device3d.UpdateBufferData("VolumeDataVB", new DataStream(verts.ToArray(), false, false));
m_MeshDesc.VertexCount = vert_count;
}
public void Generate(CVolumeBuffer volume)
{
int quad_count = Primitive_Count(volume);
int tri_count = quad_count * 2;
int vert_count = tri_count * 3;
// calculate total vertices we need
List<FatVertex> verts = new List<FatVertex>(vert_count);
int size = volume.Size;
for (int z = 0; z < size; ++z)
{
for (int y = 0; y < size; ++y)
{
for (int x = 0; x < size; ++x)
{
int value = volume.GetData(new Vector3(x, y, z));
if (value == 0)
{
if (volume.GetData_BoundarySafe(new Vector3(x + 1, y, z)) > 0)
{
CQuad newQuad = m_LookupMesh[1].Clone();
newQuad.Translate(new Vector3(x + 1, y, z));
verts.AddRange(newQuad.verts);
}
if (volume.GetData_BoundarySafe(new Vector3(x - 1, y, z)) > 0)
{
CQuad newQuad = m_LookupMesh[0].Clone();
newQuad.Translate(new Vector3(x - 1, y, z));
verts.AddRange(newQuad.verts);
}
if (volume.GetData_BoundarySafe(new Vector3(x, y + 1, z)) > 0)
{
CQuad newQuad = m_LookupMesh[3].Clone();
newQuad.Translate(new Vector3(x, y + 1, z));
verts.AddRange(newQuad.verts);
}
if (volume.GetData_BoundarySafe(new Vector3(x, y - 1, z)) > 0)
{
CQuad newQuad = m_LookupMesh[2].Clone();
newQuad.Translate(new Vector3(x, y - 1, z));
verts.AddRange(newQuad.verts);
}
if (volume.GetData_BoundarySafe(new Vector3(x, y, z + 1)) > 0)
{
CQuad newQuad = m_LookupMesh[5].Clone();
newQuad.Translate(new Vector3(x, y, z + 1));
verts.AddRange(newQuad.verts);
}
if (volume.GetData_BoundarySafe(new Vector3(x, y, z - 1)) > 0)
{
CQuad newQuad = m_LookupMesh[4].Clone();
newQuad.Translate(new Vector3(x, y, z - 1));
verts.AddRange(newQuad.verts);
}
}
}
}
}
var vb = Engine.Global.Device3d.CreateBuffer(new Device3dD3d11.SCreateBufferCmd()
{
Name = "VolumeDataVB",
SizeInBytes = (int)vert_count * m_VertDesc.SizeInBytes,
BufferBindFlags = BindFlags.VertexBuffer
});
m_MeshDesc.VBBinding = new VertexBufferBinding(vb, m_VertDesc.SizeInBytes, 0);
// update data buffer
Engine.Global.Device3d.UpdateBufferData("VolumeDataVB", new DataStream(verts.ToArray(), false, false));
m_MeshDesc.VertexCount = vert_count;
}
// this function will count the number of quads for our terrain
int Primitive_Count(CVolumeBuffer volume)
{
int count = 0;
int size = volume.Size;
for (int z = 0; z < size; ++z)
{
for (int y = 0; y < size; ++y)
{
for (int x = 0; x < size; ++x)
{
int value = volume.GetData(new Vector3(x, y, z));
// if we are in the blank space check and see if there is any valid terrain around us
if (value == 0)
{
if (volume.GetData_BoundarySafe(new Vector3(x + 1, y, z)) > 0) count++;
if (volume.GetData_BoundarySafe(new Vector3(x - 1, y, z)) > 0) count++;
if (volume.GetData_BoundarySafe(new Vector3(x, y + 1, z)) > 0) count++;
if (volume.GetData_BoundarySafe(new Vector3(x, y - 1, z)) > 0) count++;
if (volume.GetData_BoundarySafe(new Vector3(x, y, z + 1)) > 0) count++;
if (volume.GetData_BoundarySafe(new Vector3(x, y, z - 1)) > 0) count++;
}
}
}
}
return count;
}