Imported Custom CubeTexture does not have pre-processed Irradiance Convolution

[TheOmnisimush]

This is an extension of this post

How to import Cube Textures from external texture file

@ftkguy I tried the NVIDIA tools you mentioned, and it works. Although there are still a few problems : The Tools need a special format of Texture to convert to Cube Texture which requires us to convert Equilateral texture (e.g : textures in PolyHaven) into Long strip of textures using this tool GitHub - matheowis/HDRI-to-CubeMap: Image converter from spherical map to cubemap → so my suggestion is, it will be better if Flax Engine can support importing CubeTexture without having to do …

where I finally succeed to import CubeTexture into Flax,
but faced with another problem, which I separate into this post because the topic is somewhat irrelevant to previous post

The problem :
The imported CubeTexture does not seem to have “Radiance Convolution” mip filtered textures in it.
For people unfamiliar with this term, in Unity and Unreal the imported CubeTexture has 6 blurred images, which is stored inside Mip channels. Then this textures will be rendered accrodingly to the Object’s roughness (smoother material shows clearer image like mirror, while rougher object will have more blurred reflection)

• Built-in Baked reflection probe (roughness = 0.1)
  

  

• Built-in Baked reflection probe (roughness=0.8)
  

  

• Custom Reflection using imported Custom CubeTexture (roughness=0.1)
  

  

• Custom Reflection using imported Custom CubeTexture (roughness=0.8)
  

  

As you see with the custom CubeTexture, there are no much different with different roughness value,
In Unity & Unreal we have options to change “Mip Filter process to Radiance Convolution” inside Texture importer settings.
Are there something similiar in Flax? Or is this not supported currently?

[mafiesto4]

I added Mip Filter process to Radiance Convolution option impl to the roadmap so we can add this feature too.