RenderTargetTexture Water Sphere | Babylon.js Playground (babylonjs.com)
HDRFiltering does not work on Android phones. windows and IOS are normal.
Android：
I’m not sure I see a difference between the first picture and the other two?
The first image has a reflective roof that is more noticeable from all angles if you use an Android phone to access the page above. I tested it with different browsers on several Android phones of different models, and the results were the same.
Ah yes, I was looking at the car hood and couldn’t see a difference!
edge：
QQ
The above browsers are the latest version, and the operating system is Android 11. These browsers can see visible reflections of ambient light from the roof, which I think is why HDRFilting is not working properly.
This PR will fix the warnings about readPixels:
However, it does not solve the problem on my Samsung… It seems that rendering to a cubemap mipmap doesn’t work, because the HDR cube mipmaps are not the right ones (although the code to generate them is correctly executed), they are still the auto-generated mipmaps…
We should do more testing, but that will have to wait a bit because of the release of version 6.0 next week.
Until then, turning on material realTimeFiltering still results correctly.
It is a mistake to use real-time filtering with a reflection texture that is already pre-filtered: the purpose of real-time filtering is to apply the correct filtering when using a non-prefiltered texture as an environment map.
