internal static GraphParameterData[] InitGraphParameters(IEnumerable <MaterialParameter> parameters, Material material)
{
int count = parameters.Count();
var data = new GraphParameterData[count];
int i = 0;
// Load material surface parameters meta to use it for material instance parameters editing
SurfaceParameter[] surfaceParameters = null;
try
{
Profiler.BeginEvent("Init Material Parameters UI Data");
if (material != null && !material.WaitForLoaded())
{
var surfaceData = material.LoadSurface(false);
if (surfaceData != null && surfaceData.Length > 0)
{
using (var memoryStream = new MemoryStream(surfaceData))
using (var stream = new BinaryReader(memoryStream))
{
// IMPORTANT! This must match C++ Graph format
// Magic Code
int tmp = stream.ReadInt32();
if (tmp != 1963542358)
{
// Error
throw new Exception("Invalid Graph format version");
}
// Version
var version = stream.ReadUInt32();
var guidBytes = new byte[16];
if (version < 7000)
{
// Time saved (not used anymore to prevent binary diffs after saving unmodified surface)
stream.ReadInt64();
// Nodes count
int nodesCount = stream.ReadInt32();
// Parameters count
int parametersCount = stream.ReadInt32();
// For each node
for (int j = 0; j < nodesCount; j++)
{
// ID
stream.ReadUInt32();
// Type
stream.ReadUInt16();
stream.ReadUInt16();
}
// For each param
surfaceParameters = new SurfaceParameter[parametersCount];
for (int j = 0; j < parametersCount; j++)
{
// Create param
var param = new SurfaceParameter();
surfaceParameters[j] = param;
// Properties
param.Type = new ScriptType(VisjectSurfaceContext.GetGraphParameterValueType((VisjectSurfaceContext.GraphParamType_Deprecated)stream.ReadByte()));
stream.Read(guidBytes, 0, 16);
param.ID = new Guid(guidBytes);
param.Name = stream.ReadStr(97);
param.IsPublic = stream.ReadByte() != 0;
var isStatic = stream.ReadByte() != 0;
var isUIVisible = stream.ReadByte() != 0;
var isUIEditable = stream.ReadByte() != 0;
// References [Deprecated]
int refsCount = stream.ReadInt32();
for (int k = 0; k < refsCount; k++)
{
stream.ReadUInt32();
}
// Value
stream.ReadCommonValue(ref param.Value);
// Meta
param.Meta.Load(stream);
}
}
else if (version == 7000)
{
// Nodes count
int nodesCount = stream.ReadInt32();
// Parameters count
int parametersCount = stream.ReadInt32();
// For each node
for (int j = 0; j < nodesCount; j++)
{
// ID
stream.ReadUInt32();
// Type
stream.ReadUInt16();
stream.ReadUInt16();
}
// For each param
surfaceParameters = new SurfaceParameter[parametersCount];
for (int j = 0; j < parametersCount; j++)
{
// Create param
var param = new SurfaceParameter();
surfaceParameters[j] = param;
// Properties
param.Type = stream.ReadVariantScriptType();
stream.Read(guidBytes, 0, 16);
param.ID = new Guid(guidBytes);
param.Name = stream.ReadStr(97);
param.IsPublic = stream.ReadByte() != 0;
// Value
param.Value = stream.ReadVariant();
// Meta
param.Meta.Load(stream);
}
}
}
}
}
}
catch (Exception ex)
{
Editor.LogError("Failed to get material parameters metadata.");
Editor.LogWarning(ex);
}
finally
{
Profiler.EndEvent();
}
foreach (var parameter in parameters)
{
var surfaceParameter = surfaceParameters?.FirstOrDefault(x => x.ID == parameter.ParameterID);
var attributes = surfaceParameter?.Meta.GetAttributes() ?? FlaxEngine.Utils.GetEmptyArray <Attribute>();
data[i] = new GraphParameterData(null, parameter.Name, parameter.IsPublic, ToType(parameter.ParameterType), attributes, parameter);
i++;
}
Array.Sort(data, GraphParameterData.Compare);
return(data);
}
