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warrenm's profile
Warren Moore
Warren Moore
Warren Moore
@warrenm

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Warren Moore

@warrenm

Software engineer specializing in mobile graphics and augmented reality. Author of “Metal by Example”

San Francisco, CA
metalbyexample.com
Joined April 2008

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    1. Jmade‏ @Jmade 18 Dec 2015

      @warrenm Super Thanks to your site and Book! however I am stuck trying to subclass #MPSUnaryImageKernel in objC do you have any examples?

      1 reply 0 retweets 0 likes
    2. Warren Moore‏ @warrenm 18 Dec 2015
      Replying to @Jmade

      @Jmade What kind of difficulty are you encountering?

      1 reply 0 retweets 0 likes
    3. Jmade‏ @Jmade 18 Dec 2015
      Replying to @warrenm

      @warrenm with the encodeToCommandBuffer method and how to deal with if the in place operation fails. The guard statement in your sample

      1 reply 0 retweets 0 likes
    4. Warren Moore‏ @warrenm 18 Dec 2015
      Replying to @Jmade

      @Jmade I would think that would just turn into if (copyAllocator == nil) return NO; unless your kernel can operate in-place w/o allocations.

      2 replies 0 retweets 0 likes
    5. Jmade‏ @Jmade 20 Dec 2015
      Replying to @warrenm

      @warrenm Thanks for the help. What do would “texture.memory = destTexture” look like in objC?

      1 reply 0 retweets 0 likes
      Warren Moore‏ @warrenm 20 Dec 2015
      Replying to @Jmade

      @Jmade That would turn into an assignment to the out param, something like *texture = destTexture, I think.

      2:25 PM - 20 Dec 2015
      2 replies 0 retweets 0 likes
        1. New conversation
        1. Jmade‏ @Jmade 21 Dec 2015
          Replying to @warrenm

          @warrenm It’s seems that Swift’s Optionals were throwing me for a loop. How can you tell If the in-place operation succeeds or fails?

          1 reply 0 retweets 0 likes
        2. Warren Moore‏ @warrenm 21 Dec 2015
          Replying to @Jmade

          @Jmade Depends entirely on what you're doing; every operation has its own set of failure modes.

          0 replies 0 retweets 0 likes
          3. End of conversation
        1. Jmade‏ @Jmade 21 Dec 2015
          Replying to @warrenm

          @warrenm if I just return YES; everything works fine.

          0 replies 0 retweets 0 likes
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