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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. Warren Moore‏ @warrenm 15 Oct 2014

      I will be presenting the basics of 3D rendering with Metal in Swift on Nov. 4th at Realm! http://meetu.ps/2BxpX6 pic.twitter.com/jnEvPY9Hjk

      1 reply 3 retweets 14 likes
    2. haawa‏ @haawa799 16 Oct 2014
      Replying to @warrenm

      @warrenm will there be video version, for non US?

      1 reply 0 retweets 0 likes
    3. Warren Moore‏ @warrenm 16 Oct 2014
      Replying to @haawa799

      .@haawa799 Yes, video and slides will be available shortly after the event. I’ll tweet a link.

      1 reply 0 retweets 1 like
    4. haawa‏ @haawa799 20 Oct 2014
      Replying to @warrenm

      @warrenm Hi, was wondering what are the options to create texture from .png with few mipmap levels? So far I used only mipmap level 0

      1 reply 0 retweets 0 likes
    5. Warren Moore‏ @warrenm 20 Oct 2014
      Replying to @haawa799

      @haawa799 Although you can generate them on the CPU with CG, the best way is to use a blit command encoder. See generateMipmapsForTexture:

      1 reply 0 retweets 0 likes
    6. haawa‏ @haawa799 20 Oct 2014
      Replying to @warrenm

      @warrenm Oops, I just made a project in which I generate mipmap layers using Metal kernel functions xD Check it out!http://tinyurl.com/otv3gns 

      1 reply 0 retweets 0 likes
    7. Warren Moore‏ @warrenm 20 Oct 2014
      Replying to @haawa799

      @haawa799 Haha, impeccable timing! Now that you have that, I’d be really curious to know whether/how much faster it is to use blitting :)

      2 replies 0 retweets 0 likes
    8. haawa‏ @haawa799 22 Oct 2014
      Replying to @warrenm

      @warrenm Just found out that my manual mipmap generator is 100x slower then generateMipmapsForTexture :( Good experience tho.

      1 reply 0 retweets 1 like
      Warren Moore‏ @warrenm 22 Oct 2014
      Replying to @haawa799

      @haawa799 Yeah, that’s a great point of reference. I’ll have to write a quick article on mipmap generation…

      10:51 AM - 22 Oct 2014 from Pacific Heights, San Francisco
      2 replies 0 retweets 0 likes
        1. New conversation
        1. haawa‏ @haawa799 27 Oct 2014
          Replying to @warrenm

          @warrenm Just found out, that I made an error with calculations, my method is 4x slower, not 100x. Now I will sleep better :)

          1 reply 0 retweets 0 likes
        2. Warren Moore‏ @warrenm 27 Oct 2014
          Replying to @haawa799

          @haawa799 That seems more plausible 😀

          0 replies 0 retweets 0 likes
          3. End of conversation
        1. haawa‏ @haawa799 23 Oct 2014
          Replying to @warrenm

          @warrenm I’m pretty sure I would be hundreds times faster if I could write to the same texture I’m reading from

          0 replies 0 retweets 0 likes
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