/// <summary>
/// Normal のテクスチャを変換し index を確定させる
/// </summary>
/// <param name="normalTexture"></param>
/// <returns></returns>
public int ExportNormal(Texture src)
{
if (src == null)
{
return(-1);
}
// cache
if (m_exportMap.TryGetValue(new ExportKey(src, glTFTextureTypes.Normal), out var index))
{
return(index);
}
// get Texture2D
index = Exported.Count;
var texture2D = src as Texture2D;
if (UseAsset(texture2D))
{
// EditorAsset を使うので変換不要
}
else
{
// 後で Bitmap を使うために変換する
texture2D = NormalConverter.Export(src);
}
Exported.Add(texture2D);
m_exportMap.Add(new ExportKey(src, glTFTextureTypes.Normal), index);
return(index);
}
/// <summary>
///
/// </summary>
/// <param name="prop"></param>
/// <param name="smoothness">used only when converting MetallicRoughness maps</param>
/// <returns></returns>
public Texture2D ConvertTexture(string prop, float smoothnessOrRoughness = 1.0f)
{
var convertedTexture = Converts.FirstOrDefault(x => x.Key == prop);
if (convertedTexture.Value != null)
{
return(convertedTexture.Value);
}
if (prop == "_BumpMap")
{
if (Application.isPlaying)
{
var converted = new NormalConverter().GetImportTexture(Texture);
m_converts.Add(prop, converted);
return(converted);
}
else
{
#if UNITY_EDITOR
var textureAssetPath = AssetDatabase.GetAssetPath(Texture);
if (!string.IsNullOrEmpty(textureAssetPath))
{
TextureIO.MarkTextureAssetAsNormalMap(textureAssetPath);
}
else
{
Debug.LogWarningFormat("no asset for {0}", Texture);
}
#endif
return(Texture);
}
}
if (prop == "_MetallicGlossMap")
{
var converted = new MetallicRoughnessConverter(smoothnessOrRoughness).GetImportTexture(Texture);
m_converts.Add(prop, converted);
return(converted);
}
if (prop == "_OcclusionMap")
{
var converted = new OcclusionConverter().GetImportTexture(Texture);
m_converts.Add(prop, converted);
return(converted);
}
return(null);
}
