/// <summary>
/// Transforms the mesh by the specified transform.
/// </summary>
/// <param name="mesh">The mesh to transform.</param>
/// <param name="transform">The transformation.</param>
/// <returns></returns>
public static DefaultMesh Transform(this DefaultMesh mesh, Transformation3D transform)
{
if (transform is null)
{
throw new ArgumentNullException(nameof(transform));
}
var matrix = transform.CalcLocalToWorldRowMajorMatrix();
var newMesh = new DefaultMesh();
newMesh.TexCoord.AddRange(mesh.TexCoord);
newMesh.IDs.AddRange(mesh.IDs);
foreach (var pos in mesh.Position)
{
var newPos = Vector3.Transform(pos, matrix);
newMesh.Position.Add(newPos);
}
foreach (var n in mesh.Normal)
{
var newN = Vector3.Normalize(Vector3.TransformNormal(n, matrix));
newMesh.Normal.Add(newN);
}
return(newMesh);
}
/// <summary>
/// Initializes a new instance of the <see cref="Transformation3D"/> class.
/// </summary>
/// <param name="parent">The parent transformation.</param>
public Transformation3D(Transformation3D parent)
{
Parent = parent;
}
/// <summary>
/// Initializes a new instance of the <see cref="Scale3D"/> class.
/// </summary>
/// <param name="scaleVector">The scale vector.</param>
/// <param name="parent">The parent transformation</param>
public Scale3D(Vector3 scaleVector, Transformation3D parent = null) : base(parent)
{
matrix = Matrix4x4.CreateScale(scaleVector);
}
/// <summary>
/// Initializes a new instance of the <see cref="Scale3D"/> class.
/// </summary>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <param name="z">The z.</param>
/// <param name="parent">The parent transformation</param>
public Scale3D(float x, float y, float z, Transformation3D parent = null) : base(parent)
{
matrix = Matrix4x4.CreateScale(x, y, z);
}
/// <summary>
/// Initializes a new instance of the <see cref="Scale3D"/> class.
/// </summary>
/// <param name="uniformScale">The uniform scale factor.</param>
/// <param name="parent">The parent transformation</param>
public Scale3D(float uniformScale, Transformation3D parent = null) : base(parent)
{
matrix = Matrix4x4.CreateScale(uniformScale);
}
/// <summary>
/// Initializes a new instance of the <see cref="Translation3D"/> class.
/// </summary>
/// <param name="translation">The translation vector.</param>
/// <param name="parent">The parent transformation</param>
public Translation3D(Vector3 translation, Transformation3D parent = null) : base(parent)
{
matrix = Matrix4x4.CreateTranslation(translation);
}
/// <summary>
/// Initializes a new instance of the <see cref="Orbit"/> class.
/// </summary>
/// <param name="distance">The distance to the target.</param>
/// <param name="azimuth">The azimuth or heading.</param>
/// <param name="elevation">The elevation or tilt.</param>
/// <param name="parent">The parent transformation.</param>
public Orbit(float distance = 1f, float azimuth = 0f, float elevation = 0f, Transformation3D parent = null) : base(parent)
{
Azimuth = azimuth;
Distance = distance;
Elevation = elevation;
}
/// <summary>
/// Initializes a new instance of the <see cref="Rotation3D"/> class.
/// </summary>
/// <param name="axis"></param>
/// <param name="degrees">The degrees.</param>
/// <param name="parent">The parent transformation</param>
public Rotation3D(Axis axis, float degrees, Transformation3D parent = null) : base(parent)
{
Axis = axis;
Degrees = degrees;
}
