private void RecreateNormals()
{
_options = _optionsService.GetContentPreviewOptions();
if (_model == null)
return;
// Extract normals.
foreach (ModelMesh mesh in _model.Meshes)
foreach (ModelMeshPart meshPart in mesh.MeshParts)
meshPart.Tag = GetNormalBuffers(mesh, meshPart, _parentControl.GraphicsDevice, _options.NormalLengthPercentage);
}
private void RecreateBoundingBox()
{
_options = _optionsService.GetContentPreviewOptions();
if (_model == null)
return;
foreach (ModelMesh mesh in _model.Meshes)
{
BoundingBox boundingBox = new BoundingBox();
foreach (ModelMeshPart meshPart in mesh.MeshParts)
{
BoundingBox? bbox = GetBoundingBox(meshPart);
if (bbox != null)
boundingBox = BoundingBox.CreateMerged(boundingBox, bbox.Value);
}
mesh.Tag = CreateBoundingBoxBuffers(boundingBox, _parentControl.GraphicsDevice);
}
}
private void RecreateGrid(GraphicsDevice graphicsDevice, IOptionsService optionsService)
{
_options = optionsService.GetContentPreviewOptions();
_spacing = _options.GridSpacing;
_majorLines = _options.MajorLinesEveryNthGridLine;
_minorColor = ConvertUtility.ToXnaColor(_options.GridLineMinorColor);
_majorColor = ConvertUtility.ToXnaColor(_options.GridLineMajorColor);
_axisColor = ConvertUtility.ToXnaColor(_options.GridLineAxisColor);
int size = _options.GridSize;
_lineBuffer = new VertexBuffer(graphicsDevice, typeof(VertexPositionColor), size * 4, BufferUsage.WriteOnly);
VertexPositionColor[] vertices = new VertexPositionColor[size * 4];
int end = (size - 1) / 2;
int start = -end;
int index = 0;
// Lines along z.
for (int x = start; x <= end; ++x)
{
Color color = GetColor(x);
vertices[index++] = new VertexPositionColor(new Vector3(GetCoordinate(x), 0, GetCoordinate(start)), color);
vertices[index++] = new VertexPositionColor(new Vector3(GetCoordinate(x), 0, GetCoordinate(end)), color);
}
// Lines along x.
for (int z = start; z <= end; ++z)
{
Color color = GetColor(z);
vertices[index++] = new VertexPositionColor(new Vector3(GetCoordinate(start), 0, GetCoordinate(z)), color);
vertices[index++] = new VertexPositionColor(new Vector3(GetCoordinate(end), 0, GetCoordinate(z)), color);
}
_lineBuffer.SetData(vertices);
}
private void SetOptions()
{
_options = _optionsService.GetContentPreviewOptions();
}