If early-z is disabled, FPK is also disabled?

Hi Mark

This forum is for questions about how to use the community. Please look at https://community.arm.com/developer/f and let me know which product forum I can move this question to.

Thanks

Oli from the Community team

Hi Mark, 

Hidden surface removal requires guarantees that the occluder is opaque before fragment shading occurs. Opacity meaning both not using the destination color (not using blending, framebuffer fetch), and with a known sample coverage (either ZS test disabled, so always passes, or a resolved ZS test, so no discards, no alpha-to-coverage). 

HTH, 
Pete