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Mali 628 floating point precision

Maxim Mogilnitsky
Note: This was originally posted on 17th August 2013 at http://forums.arm.com

Could you please elaborate on a floating point precision of Mali-628?
What part of the IEEE754-2008 is supported in GPU? I.e. how many bits of precision we can get (medump) ?

Thank you in advance
Maxim

http://blogs.arm.com/multimedia/318-arm-mali-t604-new-gpu-architecture-for-highest-performance-flexibility/
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  • Note: This was originally posted on 26th August 2013 at http://forums.arm.com

    Thank you for the answer and for advice.
    Just to be sure let me dig a bit into the question.

    I understand that fp32 is a required and supported precision for the shaders.
    #1 Just to make it clear: Is it for both vertex and fragment shader?

    Let me also ask a question about HW itself:
    #2 Is fp32 means that the GPU HW actually uses at least 32 bits of floating point precision throughout an entire GPU pipe?

    Sorry for perhaps "blowing on water", but I got some "burns from milk".
    Best Wishes
    Maxim
Reply
  • Note: This was originally posted on 26th August 2013 at http://forums.arm.com

    Thank you for the answer and for advice.
    Just to be sure let me dig a bit into the question.

    I understand that fp32 is a required and supported precision for the shaders.
    #1 Just to make it clear: Is it for both vertex and fragment shader?

    Let me also ask a question about HW itself:
    #2 Is fp32 means that the GPU HW actually uses at least 32 bits of floating point precision throughout an entire GPU pipe?

    Sorry for perhaps "blowing on water", but I got some "burns from milk".
    Best Wishes
    Maxim
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