private LineMaterial CreateLineMaterial(bool isPolyLine, Color lineColor)
{
var lineMaterial = new LineMaterial()
{
LineColor = lineColor.ToColor4(),
LineThickness = 10,
IsPolyLine = isPolyLine
};
return(lineMaterial);
}
private ScreenSpaceLineNode CreateLinesWithLineMesh(Vector3[] linePositions, bool isLineStrip, bool isLineClosed, Color lineColor, float xOffset, out ScreenSpaceLineMesh screenSpaceLineMesh)
{
if (linePositions == null || linePositions.Length < 2)
{
screenSpaceLineMesh = null;
return(null);
}
// If line is closed but the first position is not the same as the last position, then add the first position as the last one
if (isLineClosed && linePositions[0] != linePositions[linePositions.Length - 1])
{
Array.Resize(ref linePositions, linePositions.Length + 1);
linePositions[linePositions.Length - 1] = linePositions[0];
}
// If we can easily calculate the bounding box from line positions
// it is recommended to specify it in the ScreenSpaceLineMesh constructor.
// If boundingBox is not specified, it will be calculated in the ScreenSpaceLineMesh constructor with checking all the positions.
//
// NOTE: If bounding box is not correct then camera's near and far planes can be invalid and this can cut some 3D objects at near or far plane (when DXScene.OptimizeNearAndFarCameraPlanes is true - by default)
//var boundingBox = new BoundingBox(new Vector3(startX, 0, startZ), new Vector3(startX + linesCount * margin, 0, endZ));
// Create ScreenSpaceLineMesh - it is used to create DirectX vertex buffer from positions
screenSpaceLineMesh = new ScreenSpaceLineMesh(linePositions, isLineStrip);
// When the line positions are changed many times, it is recommended to set CreateDynamicVertexBuffer to true.
screenSpaceLineMesh.CreateDynamicVertexBuffer = true;
var lineMaterial = new LineMaterial()
{
LineColor = lineColor.ToColor4(),
LineThickness = 2
};
var screenSpaceLineNode = new ScreenSpaceLineNode(screenSpaceLineMesh, lineMaterial);
screenSpaceLineNode.Transform = new Transformation(SharpDX.Matrix.Translation(xOffset, 0, 0));
// To show ScreenSpaceLineNode in DXViewportView we need to put it inside a SceneNodeVisual3D
var sceneNodeVisual3D = new SceneNodeVisual3D(screenSpaceLineNode);
MainViewport.Children.Add(sceneNodeVisual3D);
_disposables.Add(screenSpaceLineMesh);
_disposables.Add(screenSpaceLineNode);
_disposables.Add(lineMaterial);
return(screenSpaceLineNode);
}
private void ResetBurshes(RenderContainer renderContainer)
{
_selectedColorBrush?.Dispose();
_spacingColorBrush?.Dispose();
_notMappedColorBrush?.Dispose();
_gridColorBrush?.Dispose();
RenderTarget target2D = renderContainer.BackBuffer.Target2D;
_selectedColorBrush = new SolidColorBrush(target2D, SelectedColor.ToColor4(), null);
_spacingColorBrush = new SolidColorBrush(target2D, SpacingColor.ToColor4(), null);
_notMappedColorBrush = new SolidColorBrush(target2D, NotMappedColor.ToColor4(), null);
_gridColorBrush = new SolidColorBrush(target2D, GridColor.ToColor4(), null);
}
private void AddLines(Point3D startPosition, int positionsCount, Color lineColor, bool readZBuffer = true, bool writeZBuffer = true, RenderingQueue customRenderingQueue = null)
{
Vector3[] positions = new Vector3[positionsCount * 2];
Vector3 position = startPosition.ToVector3();
int index = 0;
for (int i = 0; i < positionsCount; i++)
{
positions[index] = position;
positions[index + 1] = position + new Vector3(40, 0, 0);
index += 2;
position += new Vector3(0, 0, 10);
}
// ThickLineEffect that renders the 3D lines can use the ReadZBuffer and WriteZBuffer values from LineMaterial.
//
// When ReadZBuffer is false (true by default), then line is rendered without checking the depth buffer -
// so it is always rendered even it is is behind some other 3D object and should not be visible from the camera).
//
// When WriteZBuffer is false (true by default), then when rendering the 3D line, the depth of the line is not
// written to the depth buffer. So No other object will be made hidden by the line even if that object is behind the line.
var lineMaterial = new LineMaterial()
{
LineColor = lineColor.ToColor4(),
LineThickness = 2,
ReadZBuffer = readZBuffer,
WriteZBuffer = writeZBuffer
};
_disposables.Add(lineMaterial);
var screenSpaceLineNode = new ScreenSpaceLineNode(positions, isLineStrip: false, isLineClosed: false, lineMaterial: lineMaterial);
// It is also needed that the 3D line is put to the Background or Overlay rendering queue so that it is rendered before or after other 3D objects.
screenSpaceLineNode.CustomRenderingQueue = customRenderingQueue;
var sceneNodeVisual3D = new SceneNodeVisual3D(screenSpaceLineNode);
MainViewport.Children.Add(sceneNodeVisual3D);
}
private ScreenSpaceLineNode CreateLinesWithPositions(Vector3[] linePositions, bool isLineStrip, bool isLineClosed, Color lineColor, float xOffset)
{
var lineMaterial = new LineMaterial()
{
LineColor = lineColor.ToColor4(),
LineThickness = 2
};
var screenSpaceLineNode = new ScreenSpaceLineNode(linePositions, isLineStrip, isLineClosed, lineMaterial);
screenSpaceLineNode.Transform = new Transformation(SharpDX.Matrix.Translation(xOffset, 0, 0));
// To show ScreenSpaceLineNode in DXViewportView we need to put it inside a SceneNodeVisual3D
var sceneNodeVisual3D = new SceneNodeVisual3D(screenSpaceLineNode);
MainViewport.Children.Add(sceneNodeVisual3D);
_disposables.Add(screenSpaceLineNode);
_disposables.Add(lineMaterial);
return(screenSpaceLineNode);
}
private void ChangeInstanceColor(int instanceIndex, System.Windows.Media.Color color)
{
if (_selectedInstanceIndex == -1)
{
return;
}
_instancedMeshGeometryVisual3D.InstancesData[instanceIndex].DiffuseColor = color.ToColor4();
_instancedMeshGeometryVisual3D.Update(instanceIndex, 1, updateBounds: false);
}
