static void ApplyMaterialProperties(Material mat, NeoFurConfig config)
{
Type shaderParameterType = typeof(ShaderParameters);
FieldInfo[] shaderFields = shaderParameterType.GetFields();
string unityMappedFieldName;
foreach (FieldInfo field in shaderFields)
{
unityMappedFieldName = field.Name;
// handle special cases here until things are standardized between Unity and Unreal versions
// check for uv scale
// check for color maps since we let the user pick two (one for tip and root each) instead of one for both tip and root
if (unityMappedFieldName == "HMPMap")
{
unityMappedFieldName = "HeightMapUND";
}
if (unityMappedFieldName == "GradientMapScatter")
{
unityMappedFieldName = "GradientScatterMapUND";
}
string propertyName = "_" + unityMappedFieldName;
if (!mat.HasProperty(propertyName) && !unityMappedFieldName.Contains("_UVScale") &&
propertyName != "_ColorMapUND" && propertyName != "_ColorMapOVR")
{
LogWarning("Trying to set property " + propertyName +
" but material doesnt have that property");
continue;
}
// get the base type value from the config field
object configValue = field.GetValue(config.Shader);
if (configValue == null)
{
LogWarning("Null config value: " + unityMappedFieldName + " Type: " + field.FieldType);
continue;
}
// set texture properties
if (field.FieldType == typeof(string))
{
string fileName = (string)configValue;
if (fileName.StartsWith("./"))
{
fileName = fileName.Substring(fileName.IndexOf("/"));
}
string extension = fileName.Substring(fileName.LastIndexOf(".") + 1).ToLower();
// check the file extension
if (extension == "tga" || extension == "png" || extension == "jpg")
{
string assetPath = m_currentFolder + fileName;
//get texture
Texture2D value = (Texture2D)AssetDatabase.LoadAssetAtPath(assetPath, typeof(Texture2D));
if (value == null)
{
Debug.LogErrorFormat("Missing Texture: {0}", assetPath);
continue;
}
// convert from Unreal single color map style to Unity double color map style
if (propertyName == "_ColorMapOVR" || propertyName == "_ColorMapUND")
{
string tipString = propertyName.Replace("ColorMap", "ColorTipMap");
string rootString = propertyName.Replace("ColorMap", "ColorRootMap");
mat.SetTexture(tipString, value);
mat.SetTexture(rootString, value);
}
else
{
Log("Setting Texture: " + propertyName + " = " + value.name);
mat.SetTexture(propertyName, value);
if (propertyName == "_ColorTipMapUND" || propertyName == "_ColorTipMapOVR")
{
propertyName = propertyName.Replace("Tip", "Root");
Log("Setting Root Color Texture Manually: " + propertyName + " = " + value.name);
mat.SetTexture(propertyName, value);
}
}
}
}
// set float properties
if (field.FieldType == typeof(float) ||
field.FieldType == typeof(int))
{
float value = (float)configValue;
Log("Setting Float: " + propertyName + " = " + value);
mat.SetFloat(propertyName, value);
}
// set color properties
if (field.FieldType == typeof(Color))
{
Color value = (Color)configValue;
Log("Setting Color: " + propertyName + " = " + value);
mat.SetColor(propertyName, value);
}
if (field.FieldType == typeof(Vector2))
{
Vector2 value = (Vector2)configValue;
if (propertyName.EndsWith("_UVScale"))
{
string subName = propertyName.Substring(0, propertyName.IndexOf("_UVScale"));
if (!mat.HasProperty(subName))
{
LogWarning("Material is missing Texture UV property: " + subName + ". Not setting texture UV scale.");
continue;
}
Log("Setting Texture Scale: " + subName + " = " + value);
mat.SetTextureScale(subName, value);
if (subName == "_ColorTipMapUND" || subName == "_ColorTipMapOVR")
{
subName = subName.Replace("Tip", "Root");
Log("Setting Texture Scale Manually: " + subName + " = " + value);
mat.SetTextureScale(subName, value);
}
}
}
// set vector properties
if (field.FieldType == typeof(Vector4))
{
Vector4 value = (Vector4)configValue;
Log("Setting Vector4: " + propertyName + " = " + value);
mat.SetVector(propertyName, value);
}
}
//@HACK @TODO: hardcoding roughness/smoothness
mat.SetFloat("_RoughnessUND", .25f);
mat.SetFloat("_RoughnessOVR", .25f);
MaterialUtils.RebuildMaterialKeywords(mat);
EditorUtility.SetDirty(mat);
}