private Ab3d.DirectX.Material GeneratePositionColorMaterial(Color4[] positionColorsArray, DXDevice dxDevice)
{
Ab3d.DirectX.Material dxMaterial;
if (positionColorsArray != null)
{
dxMaterial = new Ab3d.DirectX.Materials.VertexColorMaterial()
{
PositionColors = positionColorsArray, // The PositionColors property is used to specify colors for each vertex
CreateDynamicBuffer = false, // We will not update the colors frequently
// To show specular effect set the specular data here:
//SpecularPower = 16,
//SpecularColor = Color3.White,
//HasSpecularColor = true
};
}
else
{
// Solid color material:
var diffuseMaterial = new DiffuseMaterial(Brushes.Green);
// Texture material:
//var imageBrush = new ImageBrush();
//imageBrush.ImageSource = new BitmapImage(new Uri("pack://application:,,,/Resources/GrassTexture.jpg"));
//var diffuseMaterial = new DiffuseMaterial(imageBrush);
dxMaterial = new Ab3d.DirectX.Materials.WpfMaterial(diffuseMaterial);
}
// If DXDevice is already initialized, then we can also initialize (create DirectX resources) for the SimpleMesh.
// This will create the DirectX resources and send them to the GPU
if (dxDevice != null)
{
dxMaterial.InitializeResources(dxDevice);
}
return(dxMaterial);
}
private void GenerateHeightMapObject(float[,] heightData, Color4[] positionColorsArray)
{
PositionNormalTexture[] vertexBuffer;
int[] indexBuffer;
CreateHeightVertexAndIndexBuffer(heightData,
centerPosition: new Vector3(0, 0, 0),
size: new Vector3(1000, 20, 200),
vertexBuffer: out vertexBuffer,
indexBuffer: out indexBuffer);
var simpleMesh = new SimpleMesh <PositionNormalTexture>(vertexBuffer,
indexBuffer,
inputLayoutType: InputLayoutType.Position | InputLayoutType.Normal | InputLayoutType.TextureCoordinate,
name: "HeightSimpleMesh");
_disposables.Add(simpleMesh);
Ab3d.DirectX.Material dxMaterial;
if (positionColorsArray != null)
{
dxMaterial = new Ab3d.DirectX.Materials.VertexColorMaterial()
{
PositionColors = positionColorsArray, // The PositionColors property is used to specify colors for each vertex
CreateDynamicBuffer = false, // We will not update the colors frequently
// To show specular effect set the specular data here:
//SpecularPower = 16,
//SpecularColor = Color3.White,
//HasSpecularColor = true
};
}
else
{
// Solid color material:
var diffuseMaterial = new DiffuseMaterial(Brushes.Green);
// Texture material:
//var imageBrush = new ImageBrush();
//imageBrush.ImageSource = new BitmapImage(new Uri("pack://application:,,,/Resources/GrassTexture.jpg"));
//var diffuseMaterial = new DiffuseMaterial(imageBrush);
dxMaterial = new Ab3d.DirectX.Materials.WpfMaterial(diffuseMaterial);
}
_disposables.Add(dxMaterial);
var meshObjectNode = new Ab3d.DirectX.MeshObjectNode(simpleMesh, dxMaterial);
meshObjectNode.Name = "HeightMeshObjectNode";
_disposables.Add(meshObjectNode);
var sceneNodeVisual3D = new SceneNodeVisual3D(meshObjectNode);
MainViewport.Children.Add(sceneNodeVisual3D);
// If you also want to render back faces of the height map you need to create another MeshObjectNode and set its IsBackFaceMaterial to true.
// You can reuse the mesh. But this still requires almost twice the GPU power.
var backDiffuseMaterial = new DiffuseMaterial(Brushes.Gray);
var backDXMaterial = new Ab3d.DirectX.Materials.WpfMaterial(backDiffuseMaterial);
meshObjectNode = new Ab3d.DirectX.MeshObjectNode(simpleMesh, backDXMaterial);
meshObjectNode.IsBackFaceMaterial = true;
meshObjectNode.Name = "HeightBackMeshObjectNode";
_disposables.Add(meshObjectNode);
sceneNodeVisual3D = new SceneNodeVisual3D(meshObjectNode);
MainViewport.Children.Add(sceneNodeVisual3D);
}