方法 : 3-D モデルに描画を適用する

DrawingBrush を、3-D モデルに適用された Material として使用する方法を次の例に示します。

次のコードは、DrawingGroup を DrawingBrush のコンテンツとして定義しています。 DrawingBrush は、3-D 平面に適用された DiffuseMaterial の Brush プロパティとして設定されています。

メモ : 下記の描画のように複雑なオブジェクトや値は、再利用が可能なリソースとして定義して、コードを簡略化することを推奨します。 詳細については、「リソースの概要」を参照してください。

<!-- The material specifies the material applied to the 3D object. In this sample a tiled drawing   
     covers the surface of the 3D object.-->
<GeometryModel3D.Material>
  <DiffuseMaterial>
    <DiffuseMaterial.Brush>
      <DrawingBrush Viewport="0,0,0.1,0.1" TileMode="Tile">
        <DrawingBrush.Drawing>
          <DrawingGroup>
            <DrawingGroup.Children>
              <GeometryDrawing Geometry="M0,0.1 L0.1,0 1,0.9, 0.9,1z"
                Brush="Gray" />
              <GeometryDrawing Geometry="M0.9,0 L1,0.1 0.1,1 0,0.9z"
                Brush="Gray" />
              <GeometryDrawing Geometry="M0.25,0.25 L0.5,0.125 0.75,0.25 0.5,0.5z"
                Brush="#FFFF00" />
              <GeometryDrawing Geometry="M0.25,0.75 L0.5,0.875 0.75,0.75 0.5,0.5z"
                Brush="Black" />
              <GeometryDrawing Geometry="M0.25,0.75 L0.125,0.5 0.25,0.25 0.5,0.5z"
                Brush="#FF0000" />
              <GeometryDrawing Geometry="M0.75,0.25 L0.875,0.5 0.75,0.75 0.5,0.5z"
                Brush="MediumBlue" />
            </DrawingGroup.Children>
          </DrawingGroup>
        </DrawingBrush.Drawing>
      </DrawingBrush>
    </DiffuseMaterial.Brush>
  </DiffuseMaterial>
</GeometryModel3D.Material>

使用例

サンプル全体を次のコードに示します。

<Page xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml" >
  <DockPanel>
    <Viewbox>
      <Canvas Width="321" Height="201">

        <!-- The Viewport3D provides a rendering surface for 3-D visual content. -->
        <Viewport3D ClipToBounds="True" Width="150" Height="150" Canvas.Left="0" Canvas.Top="10">

          <!-- Defines the camera used to view the 3D object. -->
          <Viewport3D.Camera>
            <PerspectiveCamera Position="0,0,2" LookDirection="0,0,-1" FieldOfView="60" />
          </Viewport3D.Camera>

          <!-- The ModelVisual3D children contain the 3D models -->
          <Viewport3D.Children>

            <!-- This ModelVisual3D defines the light cast in the scene. Without light, the 3D 
                 object cannot be seen. Also, the direction of the lights affect shadowing. If desired,
                 you can create multiple lights with different colors that shine from different directions. -->
            <ModelVisual3D>
              <ModelVisual3D.Content>
                <DirectionalLight Color="#FFFFFF" Direction="-0.612372,-0.5,-0.612372" />
              </ModelVisual3D.Content>
            </ModelVisual3D>
            <ModelVisual3D>
              <ModelVisual3D.Content>
                <GeometryModel3D>

                  <!-- The geometry specifes the shape of the 3D plane. In this sample, a flat sheet is created. -->
                  <GeometryModel3D.Geometry>
                    <MeshGeometry3D
                     TriangleIndices="0,1,2 3,4,5 "
                     Normals="0,0,1 0,0,1 0,0,1 0,0,1 0,0,1 0,0,1 "
                     TextureCoordinates="0,0 1,0 1,1 1,1 0,1 0,0 "
                     Positions="-0.5,-0.5,0.5 0.5,-0.5,0.5 0.5,0.5,0.5 0.5,0.5,0.5 -0.5,0.5,0.5 -0.5,-0.5,0.5 " />
                  </GeometryModel3D.Geometry>
                  <!-- The material specifies the material applied to the 3D object. In this sample a tiled drawing   
                       covers the surface of the 3D object.-->
                  <GeometryModel3D.Material>
                    <DiffuseMaterial>
                      <DiffuseMaterial.Brush>
                        <DrawingBrush Viewport="0,0,0.1,0.1" TileMode="Tile">
                          <DrawingBrush.Drawing>
                            <DrawingGroup>
                              <DrawingGroup.Children>
                                <GeometryDrawing Geometry="M0,0.1 L0.1,0 1,0.9, 0.9,1z"
                                  Brush="Gray" />
                                <GeometryDrawing Geometry="M0.9,0 L1,0.1 0.1,1 0,0.9z"
                                  Brush="Gray" />
                                <GeometryDrawing Geometry="M0.25,0.25 L0.5,0.125 0.75,0.25 0.5,0.5z"
                                  Brush="#FFFF00" />
                                <GeometryDrawing Geometry="M0.25,0.75 L0.5,0.875 0.75,0.75 0.5,0.5z"
                                  Brush="Black" />
                                <GeometryDrawing Geometry="M0.25,0.75 L0.125,0.5 0.25,0.25 0.5,0.5z"
                                  Brush="#FF0000" />
                                <GeometryDrawing Geometry="M0.75,0.25 L0.875,0.5 0.75,0.75 0.5,0.5z"
                                  Brush="MediumBlue" />
                              </DrawingGroup.Children>
                            </DrawingGroup>
                          </DrawingBrush.Drawing>
                        </DrawingBrush>
                      </DiffuseMaterial.Brush>
                    </DiffuseMaterial>
                  </GeometryModel3D.Material>
                  <!-- Apply a transform to the object. In this sample, a rotation transform is applied, rendering the 
                       3D object rotated. -->
                  <GeometryModel3D.Transform>
                    <RotateTransform3D>
                      <RotateTransform3D.Rotation>
                        <AxisAngleRotation3D Axis="0,3,0" Angle="40" />
                      </RotateTransform3D.Rotation>
                    </RotateTransform3D>
                  </GeometryModel3D.Transform>
                </GeometryModel3D>
              </ModelVisual3D.Content>
            </ModelVisual3D>
          </Viewport3D.Children>
        </Viewport3D>
      </Canvas>
    </Viewbox>
  </DockPanel>
</Page>

参照

処理手順

方法 : 3-D シーンを作成する

概念

リソースの概要

Drawing オブジェクトの概要

3-D グラフィックスの概要