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WPF Provides us a Feature of WPF 3D Graphics

Posted by Mahak Gupta Articles | WPF February 26, 2012
In this article we see many things we can create as a three dimentional image.
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Introduction

In this article we see many things we can create as a three dimentional image.

The followiong are the few multimedia objects.

Camera

We define a Camera for this, because our screen is basically two dimensional. So the camera takes the picture of the object.
The camera defines the Position and the LookDirection and the UpDirection of the viewer.

Script tags

 <Viewport3D.Camera>
<
PerspectiveCamera Position="-30,40,50" LookDirection="30,-40,-50 " UpDirection="0,2,1" />
</Viewport3D.Camera>

Mesh

A Mesh is basically defining the surface of a 3D object. The Mesh is defined by a number of 3D Points. These 3D points are called vertices.

Viewport3D

It is used to differentiate between 2D and 3D.

3DModels

It defines the object in a particular sense.  I
t has a Geometry, it describes the Mesh and a Material that can be a diffuse, specular or emmisive material. The material itself has a brush.

Script of  <GeometryModel3D>  tag.

       <GeometryModel3D>
                   <GeometryModel3D.Geometry>
               <MeshGeometry3D Positions="0,0,1 10,10,0 10,10,0 0,10,0 0,0,10
                        10,0,10 10,10,10 0,10,10"
            TriangleIndices="0 1 2 1 3 5  0 4 3 4 7 3  4 6 7 4 5 6
                                    0 4 1 1 4 5  1 2 6 6 5 1  2 3 7 7 6 2"/>
                   </GeometryModel3D.Geometry>
                        <GeometryModel3D.Material>
                             <DiffuseMaterial Brush="BlueViolet"/>
                         </GeometryModel3D.Material>
       </GeometryModel3D>

Lights

Light is the compulsory item; without any light we see nothing. So we need to place at least one light to our scenes. WPF supports many kinds of lights.

  • AmbientLight
  • DirectionalLight
  • PointLight
  • SpotLight

Full Script

<Window x:Class="A_simple_WPF_3D_Example.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300">
    <Grid>
        <Viewport3D>
            <Viewport3D.Camera>
          <PerspectiveCamera Position="-30,40,50" LookDirection="30,-30,-50 " UpDirection="0,2,1" />
            </Viewport3D.Camera>
            <ModelVisual3D>
                <ModelVisual3D.Content>
                    <Model3DGroup>
             <DirectionalLight Color="BlanchedAlmond" Direction="-2,-3,-5" />
                        <GeometryModel3D>
                            <GeometryModel3D.Geometry>
              <MeshGeometry3D Positions="0,0,1 10,10,0 10,10,0 0,10,0 0,0,10,0,10 10,10,10 0,10,10"
            TriangleIndices="0 1 2 1 3 5  0 4 3 4 7 3  4 6 7 4 5 6
                                    0 4 1 1 4 5  1 2 6 6 5 1  2 3 7 7 6 2"/>
                            </GeometryModel3D.Geometry>
                            <GeometryModel3D.Material>
                                <DiffuseMaterial Brush="BlueViolet"/>
                            </GeometryModel3D.Material>
                        </GeometryModel3D>
                    </Model3DGroup>
                </ModelVisual3D.Content>
            </ModelVisual3D>
        </Viewport3D
    </Grid>
</
Window>

Output of the given script

Clipboard01.gif

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