Hey I'm using the CIDepthBlurEffect Core Image Filter in my app. It seems to work ok but I get these errors in the console when calling the class.
CoreImage Metal library does not contain function for name: sparserendering_xhlrb_scan
CoreImage Metal library does not contain function for name: sparserendering_xhlrb_diffuse
CoreImage Metal library does not contain function for name: sparserendering_xhlrb_copy_back
CoreImage Metal library does not contain function for name: plain_or_sRGB_copy
Am I missing some sort of import to gain these Metal functions? I am using my own custom shaders but I assume you'd be able to use them along side the built in ones.