public static PCache FromFile(string filename)
{
PCache data = new PCache();
List <string> header;
long offset;
using (var stream = File.OpenRead(filename))
{
GetHeader(stream, out offset, out header);
}
if (header == null || header[0] != "pcache")
{
throw new Exception("Invalid header : missing magic number");
}
Format format = (Format)int.MaxValue;
data.elementCount = 0;
data.properties = new List <PropertyDesc>();
foreach (string line in header)
{
var words = line.Split(' ');
switch (words[0].ToLower())
{
case "comment": //do nothing
break;
case "format":
if (words.Length != 3)
{
throw new Exception("Invalid format description :" + line);
}
switch (words[1])
{
case "ascii": format = Format.Ascii; break;
case "binary": format = Format.Binary; break;
default: throw new Exception("Invalid Format :" + words[1]);
}
break;
case "elements":
if (words.Length != 2)
{
throw new Exception("Invalid element description :" + line);
}
if (!int.TryParse(words[1], out data.elementCount))
{
throw new Exception("Invalid element count :" + words[1]);
}
break;
case "property":
if (words.Length != 3)
{
throw new Exception("Invalid property description :" + line);
}
string property = words[2];
string component = GetComponentName(property);
int idx = GetComponentIndex(property);
string type = words[1];
int stride = GetPropertySize(type);
if (stride == 0)
{
throw new Exception("Invalid Type for " + property + " property : " + type);
}
PropertyDesc prop = new PropertyDesc()
{
Name = property,
Type = type,
ComponentName = component,
ComponentIndex = idx,
Stride = stride
};
data.properties.Add(prop);
break;
case "end_header":
if (words.Length != 1)
{
throw new Exception("Invalid end_header description :" + line);
}
break;
}
}
data.buckets = new List <List <object> >();
foreach (var property in data.properties)
{
data.buckets.Add(new List <object>(data.elementCount));
}
if (format == Format.Binary)
{
using (var binaryReader = new BinaryReader(File.OpenRead(filename)))
{
binaryReader.BaseStream.Seek(offset, SeekOrigin.Begin);
for (int i = 0; i < data.elementCount; i++)
{
for (int j = 0; j < data.properties.Count; j++)
{
var prop = data.properties[j];
switch (prop.Type)
{
case "short": data.buckets[j].Add(binaryReader.ReadInt16()); break;
case "ushort": data.buckets[j].Add(binaryReader.ReadUInt16()); break;
case "int": data.buckets[j].Add(binaryReader.ReadInt32()); break;
case "uint": data.buckets[j].Add(binaryReader.ReadUInt32()); break;
case "char": data.buckets[j].Add(binaryReader.ReadSByte()); break;
case "uchar": data.buckets[j].Add(binaryReader.ReadByte()); break;
case "float": data.buckets[j].Add(binaryReader.ReadSingle()); break;
case "double": data.buckets[j].Add(binaryReader.ReadDouble()); break;
}
}
}
}
}
else if (format == Format.Ascii)
{
string[] lines = null;
using (var reader = new StreamReader(File.OpenRead(filename)))
{
reader.BaseStream.Seek(offset, SeekOrigin.Begin);
lines = reader.ReadToEnd().Replace("\r", "").Split(new char[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
}
if (lines.Length != data.elementCount)
{
throw new InvalidOperationException(string.Format("Bad item amount, {0} expected in header, found {1}", data.elementCount, lines.Length));
}
for (int i = 0; i < data.elementCount; i++)
{
string line = lines[i];
string[] elements = line.Split(' ');
for (int j = 0; j < data.properties.Count; j++)
{
var prop = data.properties[j];
switch (prop.Type)
{
case "short": data.buckets[j].Add(short.Parse(elements[j], CultureInfo.InvariantCulture)); break;
case "ushort": data.buckets[j].Add(ushort.Parse(elements[j], CultureInfo.InvariantCulture)); break;
case "int": data.buckets[j].Add(int.Parse(elements[j], CultureInfo.InvariantCulture)); break;
case "uint": data.buckets[j].Add(uint.Parse(elements[j], CultureInfo.InvariantCulture)); break;
case "char": data.buckets[j].Add(sbyte.Parse(elements[j], CultureInfo.InvariantCulture)); break;
case "uchar": data.buckets[j].Add(byte.Parse(elements[j], CultureInfo.InvariantCulture)); break;
case "float": data.buckets[j].Add(float.Parse(elements[j], CultureInfo.InvariantCulture)); break;
case "double": data.buckets[j].Add(double.Parse(elements[j], CultureInfo.InvariantCulture)); break;
}
}
}
}
return(data);
}
void OnGUI_Texture()
{
GUILayout.Label("Texture baking", EditorStyles.boldLabel);
m_Texture = (Texture2D)EditorGUILayout.ObjectField("Texture", m_Texture, typeof(Texture2D), false);
m_DecimationThresholdMode = (DecimationThresholdMode)EditorGUILayout.EnumPopup("Decimation Threshold", m_DecimationThresholdMode);
if (m_DecimationThresholdMode != DecimationThresholdMode.None)
{
m_Threshold = EditorGUILayout.Slider("Threshold", m_Threshold, 0.0f, 1.0f);
}
m_RandomizePixels = EditorGUILayout.Toggle("Randomize Pixels Order", m_RandomizePixels);
if (m_RandomizePixels)
{
m_SeedPixels = EditorGUILayout.IntField("Seed", m_SeedPixels);
}
m_ExportColors = EditorGUILayout.Toggle("Export Colors", m_ExportColors);
m_OutputFormat = (PCache.Format)EditorGUILayout.EnumPopup("File Format", m_OutputFormat);
if (m_Texture != null)
{
if (GUILayout.Button("Save to pCache file..."))
{
string fileName = EditorUtility.SaveFilePanelInProject("pCacheFile", m_Texture.name, "pcache", "Save PCache");
if (fileName != null)
{
PCache file = new PCache();
file.AddVector3Property("position");
if (m_ExportColors)
{
file.AddColorProperty("color");
}
List <Vector3> positions = new List <Vector3>();
List <Vector4> colors = null;
if (m_ExportColors)
{
colors = new List <Vector4>();
}
ComputeTextureData(positions, colors);
file.SetVector3Data("position", positions);
if (m_ExportColors)
{
file.SetColorData("color", colors);
}
file.SaveToFile(fileName, m_OutputFormat);
}
}
using (new GUILayout.VerticalScope(EditorStyles.helpBox))
{
EditorGUILayout.LabelField("Texture Statistics", EditorStyles.boldLabel);
EditorGUI.indentLevel++;
EditorGUILayout.IntField("Width", m_Texture.width);
EditorGUILayout.IntField("Height", m_Texture.height);
EditorGUILayout.IntField("Pixels count", m_Texture.width * m_Texture.height);
EditorGUI.indentLevel--;
}
}
}
PCache ComputePCacheFromMesh()
{
var meshCache = ComputeDataCache(m_Mesh);
Picker picker = null;
if (m_Distribution == Distribution.Sequential)
{
if (m_MeshBakeMode == MeshBakeMode.Vertex)
{
picker = new SequentialPickerVertex(meshCache);
}
else if (m_MeshBakeMode == MeshBakeMode.Triangle)
{
picker = new SequentialPickerTriangle(meshCache);
}
}
else if (m_Distribution == Distribution.Random)
{
if (m_MeshBakeMode == MeshBakeMode.Vertex)
{
picker = new RandomPickerVertex(meshCache, m_SeedMesh);
}
else if (m_MeshBakeMode == MeshBakeMode.Triangle)
{
picker = new RandomPickerTriangle(meshCache, m_SeedMesh);
}
}
else if (m_Distribution == Distribution.RandomUniformArea)
{
picker = new RandomPickerUniformArea(meshCache, m_SeedMesh);
}
if (picker == null)
{
throw new InvalidOperationException("Unable to find picker");
}
var positions = new List <Vector3>();
var normals = m_ExportNormals ? new List <Vector3>() : null;
var colors = m_ExportColors ? new List <Vector4>() : null;
var uvs = m_ExportUV ? new List <Vector4>() : null;
for (int i = 0; i < m_OutputPointCount; ++i)
{
if (i % 64 == 0)
{
var cancel = EditorUtility.DisplayCancelableProgressBar("pCache bake tool", string.Format("Sampling data... {0}/{1}", i, m_OutputPointCount), (float)i / (float)m_OutputPointCount);
if (cancel)
{
return(null);
}
}
var vertex = picker.GetNext();
positions.Add(vertex.position);
if (m_ExportNormals)
{
normals.Add(vertex.normal);
}
if (m_ExportColors)
{
colors.Add(vertex.color);
}
if (m_ExportUV)
{
uvs.Add(vertex.uvs.Any() ? vertex.uvs[0] : Vector4.zero);
}
}
var file = new PCache();
file.AddVector3Property("position");
if (m_ExportNormals)
{
file.AddVector3Property("normal");
}
if (m_ExportColors)
{
file.AddColorProperty("color");
}
if (m_ExportUV)
{
file.AddVector4Property("uv");
}
EditorUtility.DisplayProgressBar("pCache bake tool", "Generating pCache...", 0.0f);
file.SetVector3Data("position", positions);
if (m_ExportNormals)
{
file.SetVector3Data("normal", normals);
}
if (m_ExportColors)
{
file.SetColorData("color", colors);
}
if (m_ExportUV)
{
file.SetVector4Data("uv", uvs);
}
EditorUtility.ClearProgressBar();
return(file);
}
public override void OnImportAsset(AssetImportContext ctx)
{
try
{
PCache pcache = PCache.FromFile(ctx.assetPath);
PointCacheAsset cache = ScriptableObject.CreateInstance <PointCacheAsset>();
cache.name = "PointCache";
ctx.AddObjectToAsset("PointCache", cache);
ctx.SetMainObject(cache);
List <InProperty> inProperties = new List <InProperty>();
Dictionary <string, OutProperty> outProperties = new Dictionary <string, OutProperty>();
Dictionary <OutProperty, Texture2D> surfaces = new Dictionary <OutProperty, Texture2D>();
foreach (var prop in pcache.properties)
{
OutProperty p_out;
if (outProperties.ContainsKey(prop.ComponentName))
{
p_out = outProperties[prop.ComponentName];
p_out.Size = Math.Max(p_out.Size, prop.ComponentIndex + 1);
}
else
{
p_out = new OutProperty(prop.Type, prop.ComponentName, prop.ComponentIndex + 1);
outProperties.Add(prop.ComponentName, p_out);
}
inProperties.Add(new InProperty(prop.Type, prop.Name, prop.ComponentIndex, p_out));
}
int width, height;
FindBestSize(pcache.elementCount, out width, out height);
// Output Surface Creation
foreach (var kvp in outProperties)
{
TextureFormat surfaceFormat = TextureFormat.Alpha8;
switch (kvp.Value.PropertyType)
{
case "byte":
if (kvp.Value.Size == 1)
{
surfaceFormat = TextureFormat.Alpha8;
}
else
{
surfaceFormat = TextureFormat.RGBA32;
}
break;
case "float":
if (kvp.Value.Size == 1)
{
surfaceFormat = TextureFormat.RHalf;
}
else
{
surfaceFormat = TextureFormat.RGBAHalf;
}
break;
default: throw new NotImplementedException("Types other than byte/float are not supported yet");
}
Texture2D surface = new Texture2D(width, height, surfaceFormat, false);
surface.name = kvp.Key;
surfaces.Add(kvp.Value, surface);
}
cache.PointCount = pcache.elementCount;
cache.surfaces = new Texture2D[surfaces.Count];
Dictionary <OutProperty, Color> outValues = new Dictionary <OutProperty, Color>();
foreach (var kvp in outProperties)
{
outValues.Add(kvp.Value, new Color());
}
for (int i = 0; i < pcache.elementCount; i++)
{
int idx = 0;
foreach (var prop in inProperties)
{
float val = 0.0f;
switch (prop.PropertyType)
{
case "byte":
val = Mathf.Clamp01(((int)pcache.buckets[idx][i]) / 256.0f);
break;
case "float":
val = ((float)pcache.buckets[idx][i]);
break;
default: throw new NotImplementedException("Types other than byte/float are not supported yet");
}
SetPropValue(prop.Index, outValues, prop.OutProperty, val);
idx++;
}
foreach (var kvp in outProperties)
{
surfaces[kvp.Value].SetPixel(i % width, i / width, outValues[kvp.Value]);
}
}
int k = 0;
foreach (var kvp in surfaces)
{
kvp.Value.Apply();
kvp.Value.hideFlags = HideFlags.HideInHierarchy;
ctx.AddObjectToAsset(kvp.Key.Name, kvp.Value);
cache.surfaces[k] = kvp.Value;
k++;
}
}
catch (System.Exception e)
{
Debug.LogException(e);
}
}