Detangle all this from Cubemapper, make it able to render inline rather than on a render block
Redo update strategies from envmapprobe, much simpler, works everywhere now
Change dynamic envmapprobe to use 7 mips which is the calibrated value for Cubemapper, change default feathering value to a tighter .25f
Use parallax for ambient envmap lighting https://files.facepunch.com/sam/1b1511b1/sbox-dev_a6lt3mNtWW.mp4