private void ReadTextureCoord() { var parts = SplitLine(); if (parts.Length < 2 || parts.Length > 4) { ThrowInvalidModelFormatException("Wrong texture coordinate format"); } if (!TryStrictDoubleParse(parts[1], out var u)) { ThrowParseException("texture coord U"); } double v = 0; if (parts.Length > 2 && !TryStrictDoubleParse(parts[2], out v)) { ThrowParseException("texture coord V"); } double w = 0; if (parts.Length > 3 && !TryStrictDoubleParse(parts[3], out w)) { ThrowParseException("texture coord W"); } _model.AddTextureCoord(new TextureCoord { U = u, V = v, W = w }); }