private static void SetVerticalAndHorizontalType(IESData iesData)
{
if ((iesData.VerticalAngles[0] == 0f && iesData.VerticalAngles[iesData.VerticalAngles.Count - 1] == 90f) || (iesData.VerticalAngles[0] == -90f && iesData.VerticalAngles[iesData.VerticalAngles.Count - 1] == 0f))
{
iesData.VerticalType = VerticalType.Bottom;
}
else if (iesData.VerticalAngles[iesData.VerticalAngles.Count - 1] == 180f && iesData.VerticalAngles[0] == 90f)
{
iesData.VerticalType = VerticalType.Top;
}
else
{
iesData.VerticalType = VerticalType.Full;
}
if (iesData.HorizontalAngles.Count == 1)
{
iesData.HorizontalType = HorizontalType.None;
return;
}
if (iesData.HorizontalAngles[iesData.HorizontalAngles.Count - 1] - iesData.HorizontalAngles[0] == 90f)
{
iesData.HorizontalType = HorizontalType.Quadrant;
return;
}
if (iesData.HorizontalAngles[iesData.HorizontalAngles.Count - 1] - iesData.HorizontalAngles[0] == 180f)
{
iesData.HorizontalType = HorizontalType.Half;
return;
}
iesData.HorizontalType = HorizontalType.Full;
if (iesData.HorizontalAngles[iesData.HorizontalAngles.Count - 1] != 360f)
{
ParseIES.StitchHorizontalAssymetry(iesData);
}
}
/// <summary>
/// Converts an IES file to either a point or spot light cookie.
/// </summary>
public void ConvertIES(string filePath, string targetPath, bool createSpotlightCookies, bool rawImport, bool applyVignette, out Cubemap pointLightCookie, out Texture2D spotlightCookie, out EXRData exrData, out string targetFilename)
{
// Parse the ies data.
IESData iesData = ParseIES.Parse(filePath, rawImport ? NormalizationMode.Linear : NormalizationMode);
// Create a texture from the normalized IES data.
_iesTexture = IESToTexture.ConvertIesData(iesData);
// Regular import - creates cookies that are directly usable within Unity.
if (!rawImport)
{
exrData = default(EXRData);
RegularImport(filePath, targetPath, createSpotlightCookies, applyVignette, out pointLightCookie, out spotlightCookie, out targetFilename, iesData);
}
// Raw import - creates a .exr import of the IES data instead, to give the user full control.
else
{
pointLightCookie = null;
spotlightCookie = null;
RawImport(iesData, filePath, targetPath, createSpotlightCookies, out exrData, out targetFilename);
}
// Clean up.
if (_iesTexture != null)
{
#if UNITY_EDITOR
DestroyImmediate(_iesTexture);
#else
Destroy(_iesTexture);
#endif
}
}
private static void ReadProperties(string[] lines, ref int lineNumber, out int numberOfVerticalAngles, out int numberOfHorizontalAngles, out PhotometricType photometricType)
{
List <float> list = ParseIES.ReadValues(lines, 13, ref lineNumber);
numberOfVerticalAngles = (int)list[3];
numberOfHorizontalAngles = (int)list[4];
photometricType = (PhotometricType)list[5];
}
private static float CalculateHalfSpotFov(IESData iesData)
{
if (iesData.VerticalType == VerticalType.Bottom && iesData.VerticalAngles[0] == 0f)
{
return(ParseIES.CalculateHalfSpotlightFovForBottomHalf(iesData));
}
if (iesData.VerticalType == VerticalType.Top || (iesData.VerticalType == VerticalType.Bottom && iesData.VerticalAngles[0] == -90f))
{
return(ParseIES.CalculateHalfSpotlightFovForTopHalf(iesData));
}
return(-1f);
}
private static void DiscardBottomHalf(IESData iesData)
{
int num = 0;
int num2 = 0;
while (num2 < iesData.VerticalAngles.Count && iesData.VerticalAngles[num2] != 90f)
{
num++;
num2++;
}
ParseIES.DiscardHalf(iesData, 0, num);
}
private static void PadToSquare(IESData iesData)
{
if (Mathf.Abs(iesData.HorizontalAngles.Count - iesData.VerticalAngles.Count) <= 1)
{
return;
}
int num = Mathf.Max(iesData.HorizontalAngles.Count, iesData.VerticalAngles.Count);
if (iesData.HorizontalAngles.Count < num)
{
ParseIES.PadHorizontal(iesData, num);
return;
}
ParseIES.PadVertical(iesData, num);
}
public static IESData Parse(string path, NormalizationMode normalizationMode)
{
string[] array = File.ReadAllLines(path);
int num = 0;
ParseIES.FindNumberOfAnglesLine(array, ref num);
if (num == array.Length - 1)
{
throw new IESParseException("No line containing number of angles found.");
}
int numberOfValuesToFind;
int num2;
PhotometricType photometricType;
ParseIES.ReadProperties(array, ref num, out numberOfValuesToFind, out num2, out photometricType);
List <float> verticalAngles = ParseIES.ReadValues(array, numberOfValuesToFind, ref num);
List <float> horizontalAngles = ParseIES.ReadValues(array, num2, ref num);
List <List <float> > list = new List <List <float> >();
for (int i = 0; i < num2; i++)
{
list.Add(ParseIES.ReadValues(array, numberOfValuesToFind, ref num));
}
IESData iesdata = new IESData
{
VerticalAngles = verticalAngles,
HorizontalAngles = horizontalAngles,
CandelaValues = list,
PhotometricType = photometricType
};
ParseIES.NormalizeValues(iesdata, normalizationMode == NormalizationMode.Logarithmic);
if (normalizationMode == NormalizationMode.EqualizeHistogram)
{
ParseIES.EqualizeHistogram(iesdata);
}
if (photometricType != PhotometricType.TypeA)
{
ParseIES.DiscardUnusedVerticalHalf(iesdata);
ParseIES.SetVerticalAndHorizontalType(iesdata);
iesdata.HalfSpotlightFov = ParseIES.CalculateHalfSpotFov(iesdata);
}
else
{
ParseIES.PadToSquare(iesdata);
}
return(iesdata);
}
private static void DiscardTopHalf(IESData iesData)
{
int num = 0;
for (int i = 0; i < iesData.VerticalAngles.Count; i++)
{
if (iesData.VerticalAngles[i] == 90f)
{
num = i + 1;
break;
}
}
int range = iesData.VerticalAngles.Count - num;
ParseIES.DiscardHalf(iesData, num, range);
}
private static void DiscardUnusedVerticalHalf(IESData iesData)
{
if (iesData.VerticalAngles[0] != 0f || iesData.VerticalAngles[iesData.VerticalAngles.Count - 1] != 180f)
{
return;
}
int k = 0;
while (k < iesData.VerticalAngles.Count && !iesData.NormalizedValues.Any((List <float> slice) => slice[k] > 0.1f))
{
if (iesData.VerticalAngles[k] == 90f)
{
ParseIES.DiscardBottomHalf(iesData);
return;
}
if (iesData.VerticalAngles[k] > 90f)
{
iesData.VerticalAngles[k] = 90f;
ParseIES.DiscardBottomHalf(iesData);
return;
}
int j = k;
k = j + 1;
}
int i = iesData.VerticalAngles.Count - 1;
while (i >= 0 && !iesData.NormalizedValues.Any((List <float> slice) => slice[i] > 0.1f))
{
if (iesData.VerticalAngles[i] == 90f)
{
ParseIES.DiscardTopHalf(iesData);
return;
}
if (iesData.VerticalAngles[i] < 90f)
{
iesData.VerticalAngles[i] = 90f;
ParseIES.DiscardTopHalf(iesData);
return;
}
int j = i;
i = j - 1;
}
}
public void ConvertIES(string filePath, string targetPath, bool createSpotlightCookies, bool rawImport, bool applyVignette, out Cubemap pointLightCookie, out Texture2D spotlightCookie, out EXRData exrData, out string targetFilename)
{
IESData iesdata = ParseIES.Parse(filePath, rawImport ? NormalizationMode.Linear : this.NormalizationMode);
this._iesTexture = IESToTexture.ConvertIesData(iesdata);
if (!rawImport)
{
exrData = default(EXRData);
this.RegularImport(filePath, targetPath, createSpotlightCookies, applyVignette, out pointLightCookie, out spotlightCookie, out targetFilename, iesdata);
}
else
{
pointLightCookie = null;
spotlightCookie = null;
this.RawImport(iesdata, filePath, targetPath, createSpotlightCookies, out exrData, out targetFilename);
}
if (this._iesTexture != null)
{
UnityEngine.Object.Destroy(this._iesTexture);
}
}
/// <summary>
/// Converts an IES file to either a point or spot light cookie.
/// </summary>
public void ConvertIES(string filePath, string targetPath, bool createSpotlightCookies, out Cubemap pointLightCookie, out Texture2D spotlightCookie, out string targetFilename)
{
// Parse the ies data.
IESData iesData = ParseIES.Parse(filePath, SquashHistogram);
IesTexture = IESToTexture.ConvertIesData(iesData, Resolution);
// If spot light cookie creation is enabled, check if the ies data can be projected into a spot light cookie.
// Only half the sphere may be provided if the ies data is to fit inside a spot light cookie.
if (createSpotlightCookies && iesData.VerticalType != VerticalType.Full)
{
pointLightCookie = null;
GetComponent <IESToSpotlightCookie>().CreateSpotlightCookie(IesTexture, iesData, Resolution, out spotlightCookie);
}
// Create a point light cookie cubemap in all other cases.
else
{
spotlightCookie = null;
GetComponent <IESToCubemap>().CreateCubemap(IesTexture, iesData, Resolution, out pointLightCookie);
}
// Create the target file name and required folders.
BuildTargetFilename(Path.GetFileNameWithoutExtension(filePath), targetPath, pointLightCookie != null, SquashHistogram, out targetFilename);
}
