public KHR_materials_pbrSpecularGlossinessExtension(Color diffuseFactor, TextureInfo diffuseTexture, Vector3 specularFactor, double glossinessFactor, TextureInfo specularGlossinessTexture)
{
DiffuseFactor = diffuseFactor;
DiffuseTexture = diffuseTexture;
SpecularFactor = specularFactor;
GlossinessFactor = glossinessFactor;
SpecularGlossinessTexture = specularGlossinessTexture;
}
public static GLTF.Math.Color[] ToNumericsColorLinear(this UnityEngine.Color[] inColorArr)
{
GLTF.Math.Color[] outColorArr = new GLTF.Math.Color[inColorArr.Length];
for (int i = 0; i < inColorArr.Length; ++i)
{
outColorArr[i] = inColorArr[i].ToNumericsColorLinear();
}
return(outColorArr);
}
public static UnityEngine.Color ToUnityColor(this GLTF.Math.Color color)
{
return(new UnityEngine.Color(color.R, color.G, color.B, color.A));
}
public static Color ImportColor(GLTF.Math.Color color)
{
return(ImportColor(new Color(color.R, color.G, color.B, color.A)));
}
private static GLTF.Schema.Material ConvertSeinPBRMaterial(UnityEngine.Material mat, ExporterEntry entry)
{
var material = new GLTF.Schema.Material();
material.Name = mat.name;
bool isMetal = mat.GetInt("workflow") == 0;
bool isUnlit = mat.GetInt("unlit") == 1;
if (!isMetal)
{
// special
entry.AddExtension("KHR_materials_pbrSpecularGlossiness");
material.Extensions = new Dictionary <string, Extension>();
}
else
{
material.PbrMetallicRoughness = new PbrMetallicRoughness();
}
bool hasTransparency = ProcessTransparency(mat, material);
if (isUnlit || isMetal)
{
if (mat.GetTexture("_baseColorMap") != null)
{
var id = entry.SaveTexture((Texture2D)mat.GetTexture("_baseColorMap"), hasTransparency);
material.PbrMetallicRoughness.BaseColorTexture = new TextureInfo {
Index = id
};
}
if (mat.GetColor("_baseColor") != null)
{
Color c = mat.GetColor("_baseColor");
material.PbrMetallicRoughness.BaseColorFactor = Utils.ExportColor(c);
}
}
if (isUnlit)
{
if (material.Extensions == null)
{
material.Extensions = new Dictionary <string, Extension>();
}
ExtensionManager.Serialize(ExtensionManager.GetExtensionName(typeof(KHR_materials_unlitExtensionFactory)), entry, material.Extensions);
}
else if (isMetal)
{
bool hasPBRMap = mat.GetTexture("_metallicMap") != null;
if (hasPBRMap)
{
Texture2D metallicTexture = (Texture2D)mat.GetTexture("_metallicMap");
Texture2D roughnessTexture = (Texture2D)mat.GetTexture("_roughnessMap");
Texture2D occlusion = (Texture2D)mat.GetTexture("_occlusionMap");
var metalRoughTextureAo = CreateOcclusionMetallicRoughnessTexture(
ref metallicTexture, ref roughnessTexture, ref occlusion
);
var assetPath = AssetDatabase.GetAssetPath(metallicTexture);
var ext = Path.GetExtension(assetPath);
var id = entry.SaveTexture(metalRoughTextureAo, hasTransparency, assetPath.Replace(ext, "-orm") + ext);
material.PbrMetallicRoughness.MetallicRoughnessTexture = new TextureInfo {
Index = id
};
if (occlusion != null)
{
material.OcclusionTexture = new OcclusionTextureInfo
{
Index = id,
Strength = mat.GetFloat("_occlusionStrength")
};
}
}
material.PbrMetallicRoughness.MetallicFactor = mat.GetFloat("_metallic");
material.PbrMetallicRoughness.RoughnessFactor = mat.GetFloat("_roughness");
}
else
{
TextureInfo specGlossMap = null;
TextureInfo diffuseMap = null;
var diffuseColor = new GLTF.Math.Color();
if (mat.GetTexture("_baseColorMap") != null)
{
var id = entry.SaveTexture((Texture2D)mat.GetTexture("_baseColorMap"), hasTransparency);
diffuseMap = new TextureInfo {
Index = id
};
}
if (mat.GetColor("_baseColor") != null)
{
Color c = mat.GetColor("_baseColor");
diffuseColor = Utils.ExportColor(c);
}
bool hasPBRMap = mat.GetTexture("_specularGlossinessMap") != null;
if (hasPBRMap)
{
specGlossMap = new TextureInfo {
Index = entry.SaveTexture((Texture2D)mat.GetTexture("_specularGlossinessMap"), true)
};
}
var specularFactor = hasPBRMap ? Color.white : (Color)Utils.ExportColorVec4(mat.GetColor("_specular"));
var glossinessFactor = hasPBRMap ? 1.0f : mat.GetFloat("_glossiness");
if (material.Extensions == null)
{
material.Extensions = new Dictionary <string, Extension>();
}
material.Extensions.Add(
"KHR_materials_pbrSpecularGlossiness",
new KHR_materials_pbrSpecularGlossinessExtension(
diffuseColor, diffuseMap,
new GLTF.Math.Vector3(specularFactor.r, specularFactor.g, specularFactor.b),
glossinessFactor, specGlossMap
)
);
Texture2D occlusion = (Texture2D)mat.GetTexture("_occlusionMap");
if (occlusion != null)
{
material.OcclusionTexture = new OcclusionTextureInfo
{
Index = entry.SaveTexture((Texture2D)mat.GetTexture("_occlusionMap"), false),
Strength = mat.GetFloat("_occlusionStrength")
};
}
}
if (mat.GetTexture("_normalMap") != null)
{
material.NormalTexture = new NormalTextureInfo
{
Index = entry.SaveTexture((Texture2D)mat.GetTexture("_normalMap"), false),
};
}
if (mat.GetTexture("_emissionMap") != null)
{
material.EmissiveTexture = new TextureInfo
{
Index = entry.SaveTexture((Texture2D)mat.GetTexture("_emissionMap"), false),
};
}
var emissive = mat.GetColor("_emission");
if (!emissive.Equals(new Color(0, 0, 0)))
{
material.EmissiveFactor = Utils.ExportColor(emissive);
}
if (mat.GetInt("envReflection") != (int)SeinPBRShaderGUI.EnvReflection.Off || (ExporterSettings.Lighting.ambient && (RenderSettings.ambientMode == UnityEngine.Rendering.AmbientMode.Skybox || RenderSettings.ambientMode == UnityEngine.Rendering.AmbientMode.Trilight)))
{
if (material.Extensions == null)
{
material.Extensions = new Dictionary <string, Extension>();
}
ExtensionManager.Serialize(ExtensionManager.GetExtensionName(typeof(Sein_imageBasedLightingExtensionFactory)), entry, material.Extensions, mat);
}
return(material);
}
public static UnityEngine.Color ToUnityColorLinear(this GLTF.Math.Color color)
{
var c = new UnityEngine.Color(color.R, color.G, color.B, color.A);
return(c);
}
public static Color ToUnityColorRaw(this GLTF.Math.Color color)
{
return(new Color(color.R, color.G, color.B, color.A));
}
