HI there,
consider this PG: https://playground.babylonjs.com/#H09AM2#23
I’m using a specular .dds file produced with IBLBaker from an HDRI file: this one.
As you can see the colors seems to be all in negative.
When i import the HDRI in IBLBaker i can see the correct environment, but when i save it in .dds ad use the specular one, as stated in this guide, i have the result you can see in the PG.
Where do am i mistaking?
Hello @Mercurio , how are you doing?
Thanks for your question! I will take a look at your files to check what is going wrong.
I would recommend to rely on .env instead whenever you can for accuracy perf and size: Using An HDR Environment For PBR | Babylon.js Documentation
The idea in the end is to use .env produced with sandbox from a .dss file to reduce the file size. But in the beginning i would like to test directly .dds file and go with .env only when i’ve chosen the right HDRI to use. Thank’s 
why not testing .hdr directly instead as this is supported as well ?
If i use directly the HDR file it works, the problem seems to occur when i convert it in .dds with IBLBaker.
As stated in the guide, i though that in Sandbox was mandatory to use .dds file, but i’ve discovered that i can load also hdri file and then convert it to .env with success (https://playground.babylonjs.com/#H09AM2#25). So, i think this is the solution. Thank’s!