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

markhuang2007

In Mali GPU, FPK will also be disabled, if early-z is disabled?

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  • 0 Arm Employee Badge

    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

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  • 0 Arm Employee Badge

    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

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