/// <summary>
/// Reloads the VertexBuffer for the TerrainPage.
/// </summary>
public void RefreshVertexBuffer_Page()
{
if (_page != null)
{
if (!_colorByHeight)
{
// Determine which list of vertices to build
switch (_viewport.Device.DeviceCaps.MaxSimultaneousTextures)
{
case 0:
BuildVertices_PositionNormal();
break;
case 1:
BuildVertices_PositionNormalTextured1();
break;
case 2:
BuildVertices_PositionNormalTextured2();
break;
case 3:
BuildVertices_PositionNormalTextured3();
break;
case 4:
BuildVertices_PositionNormalTextured4();
break;
case 5:
BuildVertices_PositionNormalTextured5();
break;
case 6:
BuildVertices_PositionNormalTextured6();
break;
case 7:
BuildVertices_PositionNormalTextured7();
break;
case 8:
default:
BuildVertices_PositionNormalTextured8();
break;
}
}
else
{
// Build non-textured vertex buffer
GraphicsStream stream;
int vertColor;
D3D.CustomVertex.PositionNormalColored[] tri =
new D3D.CustomVertex.PositionNormalColored[_page.TerrainPatch.NumVertices];
for (int i = 0; i < tri.Length; i++)
{
tri[i].Position = _page.TerrainPatch.Vertices[i].Position;
tri[i].Normal = _page.TerrainPatch.Vertices[i].Normal;
vertColor = (int)((tri[i].Position.Y / _page.MaximumVertexHeight) * 255.0f);
tri[i].Color = Color.FromArgb(vertColor, vertColor, vertColor).ToArgb();
}
if (_vbByHeight == null)
{
_vbByHeight = new D3D.VertexBuffer(typeof(D3D.CustomVertex.PositionNormalColored),
tri.Length, _viewport.Device, D3D.Usage.Dynamic | D3D.Usage.WriteOnly,
D3D.CustomVertex.PositionNormalColored.Format, D3D.Pool.Default);
}
stream = _vbByHeight.Lock(0, 0, D3D.LockFlags.Discard);
stream.Write(tri);
_vbByHeight.Unlock();
_vbSize = tri.Length;
}
_page.TerrainPatch.RefreshBuffers = false;
}
else
{
if (_vb != null)
{
if (!_vb.Disposed)
{
_vb.Dispose();
}
_vb = null;
_vbSize = 0;
}
if (_vbByHeight != null)
{
if (!_vbByHeight.Disposed)
{
_vbByHeight.Dispose();
}
_vbByHeight = null;
_vbSize = 0;
}
}
}
/// <summary>
/// Reloads the VertexBuffer for the TerrainPage.
/// </summary>
public void RefreshVertexBuffer_Page()
{
if ( _page != null )
{
if ( !_colorByHeight )
{
// Determine which list of vertices to build
switch ( _viewport.Device.DeviceCaps.MaxSimultaneousTextures )
{
case 0:
BuildVertices_PositionNormal();
break;
case 1:
BuildVertices_PositionNormalTextured1();
break;
case 2:
BuildVertices_PositionNormalTextured2();
break;
case 3:
BuildVertices_PositionNormalTextured3();
break;
case 4:
BuildVertices_PositionNormalTextured4();
break;
case 5:
BuildVertices_PositionNormalTextured5();
break;
case 6:
BuildVertices_PositionNormalTextured6();
break;
case 7:
BuildVertices_PositionNormalTextured7();
break;
case 8:
default:
BuildVertices_PositionNormalTextured8();
break;
}
}
else
{
// Build non-textured vertex buffer
GraphicsStream stream;
int vertColor;
D3D.CustomVertex.PositionNormalColored[] tri =
new D3D.CustomVertex.PositionNormalColored[_page.TerrainPatch.NumVertices];
for ( int i = 0; i < tri.Length; i++ )
{
tri[i].Position = _page.TerrainPatch.Vertices[i].Position;
tri[i].Normal = _page.TerrainPatch.Vertices[i].Normal;
vertColor = (int) ( ( tri[i].Position.Y / _page.MaximumVertexHeight ) * 255.0f );
tri[i].Color = Color.FromArgb( vertColor, vertColor, vertColor ).ToArgb();
}
if ( _vbByHeight == null )
_vbByHeight = new D3D.VertexBuffer( typeof( D3D.CustomVertex.PositionNormalColored ),
tri.Length, _viewport.Device, D3D.Usage.Dynamic | D3D.Usage.WriteOnly,
D3D.CustomVertex.PositionNormalColored.Format, D3D.Pool.Default );
stream = _vbByHeight.Lock( 0, 0, D3D.LockFlags.Discard );
stream.Write( tri );
_vbByHeight.Unlock();
_vbSize = tri.Length;
}
_page.TerrainPatch.RefreshBuffers = false;
}
else
{
if ( _vb != null )
{
if ( !_vb.Disposed )
_vb.Dispose();
_vb = null;
_vbSize = 0;
}
if ( _vbByHeight != null )
{
if ( !_vbByHeight.Disposed )
_vbByHeight.Dispose();
_vbByHeight = null;
_vbSize = 0;
}
}
}
