Bug: FBX roughness texture is not found with aiTextureType_DIFFUSE_ROUGHNESS

[ftedoldi]

I have a problem when loading FBX objects, in particular the roughness texture is not found. To get the texture i use the following code:

if(material->GetTextureCount(aiTextureType_DIFFUSE_ROUGHNESS) > 0)
{
    mat.hasRoughnessTexture = true;
    std::cout << "Has texture roughness" << std::endl;
    this->_gammaCorrect = false;
    std::vector<Texture2D> roughnessMap = loadTexture(material, aiTextureType_DIFFUSE_ROUGHNESS, this->_gammaCorrect);
    mat.PBR_textures.insert(mat.PBR_textures.end(), roughnessMap.begin(), roughnessMap.end());
}

"Has texture roughness" never get printed. The FBX object i use is a simple sphere with albedo, normal, metallic and roughness maps, exported from blender. gltf and obj objects works fine, the only problem i get is this one with FBX.

[redsigma]

Try to look for aiTextureType_SHININESS . The roughness should be there. Not sure how correct this is but that's how it works from what I tested.