static void ReadMeshElements(MeshData data, ImportOptions importOptions, ref Matrix4 transform)
{
ReadUvSets(data);
//flip with disabled FlipUVs, no flip when enabled
if (!importOptions.ImportPostProcessFlags.HasFlag(ImportPostProcessFlags.FlipUVs))
{
CalcMiscProcess.FlipUVs(data.Vertices, data.VertexComponents);
//ToDo : !!! Доделать FlipUV для Materials - там тоже Flip для Transform текстуры .... tex->UVScaling(); tex->UVTranslation();
}
ReadColor(data);
TransformVertices(data, transform);
int uvSetIndexForNormalsAndTangents = 0; //ToDo : пока 0, может не всегда?
if (3 <= data.PolygonSize)
{
ReadNormals(data, importOptions, uvSetIndexForNormalsAndTangents, data.CalcCache, ref transform);
if (importOptions.ImportPostProcessFlags.HasFlag(ImportPostProcessFlags.FixInfacingNormals) && data.NormalsSource != TangentsAndNormalsSource.None)
{
if (CalcNormalsProcess.FixInfacingNormals(data.Vertices))
{
FbxImportLog.LogMessage(data.Node, "Infacing Normals Fixed");
}
}
ReadTangents(data, importOptions, uvSetIndexForNormalsAndTangents, data.CalcCache, ref transform);
}
}
//const float DefaultSmoothingAngleInRadians = (float)( 175f * Math.PI / 180 );
public static void CalculateNormals(VertexInfo[] vertices, bool normalizeVectorNormal)
{
if (vertices.Length == 0)
{
return;
}
foreach (var polygonIndexRange in CalcMiscProcess.EnumeratePolygons(vertices))
{
CalculateNormalForFace(vertices, polygonIndexRange, normalizeVectorNormal);
}
}
/// <summary>
/// Requirements : normals and UV coordinates must be present.
/// </summary>
/// <param name="vertices"></param>
/// <param name="tangents"></param>
/// <param name="bitangents"></param>
/// <param name="getTextureCoord">if null then texCoord0 is used, if not null this delegete than takes the necessary texCoord</param>
public static void CalculateTangents(VertexInfo[] vertices, out Vector3F[] tangents, out Vector3F[] bitangents, GetTextureCoord getTextureCoord = null)
{
tangents = new Vector3F[vertices.Length];
bitangents = new Vector3F[vertices.Length];
if (vertices.Length == 0)
{
return;
}
foreach (var polygonIndexRange in CalcMiscProcess.EnumeratePolygons(vertices))
{
CalculateTangentForFace(vertices, polygonIndexRange, tangents, bitangents, getTextureCoord);
}
//SmoothTangents( vertices, tangents, bitangents, FbxMath.ComputePositionEpsilon( vertices ), maxSmoothingAngleInRadians );
}
