Heyo everyone!
I’m posting this to share my open source ISF and Metal shaders that make working in the okLAB colorspace easy in VDMX.
This includes:
- ISF “filter” shaders to convert to/from the RGB colorspace and okLAB.
- Metal shaders to place into the blending mode content folder that include a combination of operations on the L, A and B channels.
The Shaders:
https://github.com/doawoo/vdmx-oklab-isf
What is okLAB?
okLAB is a “perceptual” colorspace. Similar to LAB, it abstracts the concept of color “value” into a single channel and hue information into the other two. The difference with okLAB is that it ensures consistent value of a hue as you move across the space.
It’s a bit abstract to explain but you can observe the consistency in the gradients below, okLAB on the top vs HSV on the bottom:
Source: Mini: OkLab - by Xor - GM Shaders (this is a nice article on the issue!)
Anyways, hope these are useful to you, they’re totally free to use! :3