Moto G6 by Motorola.
This is one of those rare cases where I don't have a camera profile. You can either capture a raw photo with a mobile app and we can extract the camera profile from the raw image. Or you can generate an optimal camera profile with an Xrite, and then we can linearize the generated profile.
I hope to be more active online soon, proper linear profile guide is one of my top priories.
what is the correct way to getting the accurate IOR values?
My generator is based on IOR 1.5 and will high pass all input maps. I will port my code to 3dsMax and post it here, that way you guys can make adjustments if you want. Instead of having a static LUT.
I rarely use LUTs nowadays. Most stuff can be done with Coronas Curve editor in combination with hacky stuff between the two VFB tonemappers.
Best result would be:
#1 Specular Scan (Photo real result). (Look at your TV plastic controller, when you rotate it, it will give you micro spectacular results. But when you view it direct on, it will look diffuse. This effect can not be captured with a normal map.)
#2 Normal Map (Height Based, better than nothing.)
#3 Old Reflection custom fantasy maps (Nothing to do with real world values. 99% of online stores)
I began porting the code, and where the hell has the Corona Bitmap Blur property gone ? It was the only reason for me to use Corona Bitmap, as it behaved as a super blur for highpass.
We need a corona map that has gaussian blur, this missing feature is killing a lot of dynamic and procedural map generation ideas.
edit: typo = port -> post