public static bool GenerateTangentSpace(int faceCount, VerticesPerFaceHandler getVerticesPerFace,
VertexPositionHandler getPosition, VertexNormalHandler getNormal, VertexUVHandler getUV,
TangentHandler setTangent, float angularThreshold = 180)
{
var context = new MikktspaceContext(faceCount, getVerticesPerFace, getPosition, getNormal, getUV,
null, setTangent);
return(GenerateTangentSpace(context, angularThreshold));
}
public MikktspaceContext(int faceCount, VerticesPerFaceHandler getVerticesPerFace,
VertexPositionHandler getVertexPosition, VertexNormalHandler getVertexNormal, VertexUVHandler getVertexUV,
BasicTangentHandler setTangentBasic = null, TangentHandler setTangent = null)
{
if (faceCount <= 0)
{
throw new ArgumentOutOfRangeException(nameof(faceCount), "Face Count must be larger than 0");
}
if (getVerticesPerFace == null)
{
throw new ArgumentNullException(nameof(getVerticesPerFace), "All mesh data callbacks must be provided");
}
if (getVertexNormal == null)
{
throw new ArgumentNullException(nameof(getVerticesPerFace), "All mesh data callbacks must be provided");
}
if (getVertexUV == null)
{
throw new ArgumentNullException(nameof(getVerticesPerFace), "All mesh data callbacks must be provided");
}
if (setTangentBasic == null && setTangent == null)
{
throw new ArgumentException($"Both {nameof(setTangentBasic)} and {nameof(setTangent)} are null");
}
if (setTangentBasic != null && setTangent != null)
{
throw new ArgumentException($"{nameof(setTangentBasic)} and {nameof(setTangent)} cannot be used at the same time");
}
this.FaceCount = faceCount;
this.GetVerticesPerFace = getVerticesPerFace;
this.GetVertexPosition = getVertexPosition;
this.GetVertexNormal = getVertexNormal;
this.GetVertexUV = getVertexUV;
this.SetTangentBasic = setTangentBasic;
this.SetTangent = setTangent;
}