/// <summary>
/// Creates a dynamic parameter key for texel size updated from the texture size.
/// </summary>
/// <param name="textureKey">Key of the texture to take the size from</param>
/// <returns>A dynamic TexelSize parameter key updated according to the specified texture</returns>
public static ParameterKey <Vector2> CreateDynamicTexelSizeParameterKey(ParameterKey <Texture> textureKey)
{
if (textureKey == null)
{
throw new ArgumentNullException("textureKey");
}
return(ParameterKeys.NewDynamic(ParameterDynamicValue.New <Vector2, Texture>(textureKey, UpdateTexelSize)));
}
static TransformationKeys()
{
View = ParameterKeys.New(Matrix.Identity);
Projection = ParameterKeys.New(Matrix.Identity);
World = ParameterKeys.New(Matrix.Identity);
WorldView = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Matrix, Matrix, Matrix>(World, View, Matrix.MultiplyRef));
WorldViewProjection = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Matrix, Matrix, Matrix>(World, ViewProjection, Matrix.MultiplyRef));
ProjScreenRay = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Vector2, Matrix>(Projection, ExtractProjScreenRay));
Eye = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Vector4, Matrix>(View, ViewToEye));
EyeMS = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Vector4, Matrix>(WorldView, WorldViewToEyeMS));
WorldInverse = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Matrix, Matrix>(World, InvertMatrix));
WorldInverseTranspose = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Matrix, Matrix>(WorldInverse, TransposeMatrix));
ViewInverse = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Matrix, Matrix>(View, InvertMatrix));
ProjectionInverse = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Matrix, Matrix>(Projection, InvertMatrix));
WorldViewInverse = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Matrix, Matrix>(WorldView, InvertMatrix));
WorldScale = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Vector3, Matrix>(World, ExtractScale));
}
static CameraKeys()
{
ZProjection = ParameterKeys.NewDynamic(ParameterDynamicValue.New <Vector2, float, float>(NearClipPlane, FarClipPlane, ZProjectionACalculate));
}