Sky glitches on Samsung Galaxy Tab 4 7.0

I made a trip to a local supermarket and, based on your bug reports, got myself yet another testing tablet, a Samsung Galaxy Tab 4 7.0.

Here’s how the sky looks on its screen:

Survivalcraft 2015-03-29 22-44-19-

First of all, this is not a new problem. Survivalcraft 1.26 looks exactly the same. This is not a problem with the game at all, it’s the rubbish GPU they put into this thing. It cannot clip polygons properly, all polygons which cross the near clipping plane get distorted.

Please do not buy this tablet, or indeed any tablet that uses shady GPUs. This one has Marvell PXA1088 CPU + some “Vivante GT” GPU. A combination from hell, names alone should set the warning bells ringing.

Samsung

It is pretty, but stay away!

Most Samsungs are good, this one sadly is an exception. Reliable CPUs come from nVidia (Tegra), Qualcomm (Adreno), Samsung (Exynos), PowerVR, Mali, maybe a few others. Anything else and you’re getting yourself in for trouble.

What can I do to workaround this? I will cut the sky into small polygons, hurting performance, so that you do not see when GPU makes a hash out of clipping them, because they will be (mostly) outside of the screen.

Please stay tuned for 1.27.4.

61 Comments

  1. Posted March 29, 2015 at 16:06 | Permalink | Reply

    Lol. Nice one kaalus!

    • MTB adventures/RCs to the limit
      Posted March 29, 2015 at 16:10 | Permalink | Reply

      so close! i came just so close!

      • Posted March 29, 2015 at 16:26 | Permalink | Reply

        4 minutes :D
        I could have typed a lengthy reply in that time :(

        • MTB adventures/RCs to the limit
          Posted March 29, 2015 at 16:27 | Permalink

          oh i guess…. DARN.

  2. MTB adventures/RCs to the limit
    Posted March 29, 2015 at 16:09 | Permalink | Reply

    2nd!

  3. Posted March 29, 2015 at 16:09 | Permalink | Reply

    Oh and for tradition sake, 1st

    • MTB adventures/RCs to the limit
      Posted March 29, 2015 at 16:10 | Permalink | Reply

      i know right?

  4. MTB adventures/RCs to the limit
    Posted March 29, 2015 at 16:15 | Permalink | Reply

    Keep up the good work! Kaalus please have an option to turn body temperature off in adventure mode) I need it desperately!

  5. MTB adventures/RCs to the limit
    Posted March 29, 2015 at 16:17 | Permalink | Reply

    5th i had too!

  6. Posted March 29, 2015 at 16:26 | Permalink | Reply

    Sucks that many opportunities for new things are lost and many problems arise because you have to make the game compatible with junk like this. Ah well…

    • Posted March 29, 2015 at 16:47 | Permalink | Reply

      Hey I saw your video! Thanks for the review of 1.27. Still waiting @lumia1520

      • Posted March 29, 2015 at 16:48 | Permalink | Reply

        Thanks for watching! Can’t wait to do some more Survivalcraft videos :-D

        • Posted March 29, 2015 at 16:53 | Permalink

          Maybe when I release my map are you up for doing a lets play of it? I spent 5 months building It so far.
          Mrshots.wordpress.com has images.

          I’ll go subscribe to your channel now :D

        • Posted March 29, 2015 at 16:55 | Permalink

          Sure! If someone works for 5 months on something they deserve an award heheh. I don’t have the patience for that, though I have tried many a time.

  7. Posted March 29, 2015 at 16:28 | Permalink | Reply

    could you make baby animals, maybe some cats and pigs,and dogs

    • MTB adventures/RCs to the limit
      Posted March 29, 2015 at 16:29 | Permalink | Reply

      errrrrrrrrr…………………………

  8. Posted March 29, 2015 at 16:29 | Permalink | Reply

    I think that if samsung finds out,
    you will be skinned alive.

    • MTB adventures/RCs to the limit
      Posted March 29, 2015 at 16:32 | Permalink | Reply

      I don’t think so….. samsung and mojang would fight each other 1st to see who would. :)

      Kaalus is ALIVE!!!

      • Posted March 29, 2015 at 16:51 | Permalink | Reply

        I’m Notch in disguise. Since losing Minecraft to Microsoft, I have devoted my time into plotting kaalus’ murder. It will happen on April 1st

        • Posted March 29, 2015 at 17:14 | Permalink


          That does sound quite threatening…
          LOL

        • MTB adventures/RCs to the limit
          Posted March 29, 2015 at 18:53 | Permalink

          HA HA!

  9. esurlet
    Posted March 29, 2015 at 16:36 | Permalink | Reply

    I think a lot people take developers’ hard work for granted. I think it’s awesome that you pick up different devices just to make sure the game runs smoothly on them. Kudos for your devotion, man.

  10. Posted March 29, 2015 at 16:51 | Permalink | Reply

    WOW kaalus, this is so insane :P. But funnh anyway :D

  11. Posted March 29, 2015 at 17:00 | Permalink | Reply

    Stop supporting android and ios! Windows phone ftw! No dumb bugs or stuff.
    I’m sure nobody would be angry.
    (jk)

    • MTB adventures/RCs to the limit
      Posted March 29, 2015 at 17:15 | Permalink | Reply

      Wow you are mrshots.

      • Posted March 29, 2015 at 17:25 | Permalink | Reply

        What do you mean? I’m mrshots? Lol. Dunno who he is…

        • MTB adventures/RCs to the limit
          Posted March 29, 2015 at 18:53 | Permalink

          get it “shots”? BAD PUN.

        • Posted March 29, 2015 at 19:24 | Permalink

          Shots have been fired.

    • Posted March 29, 2015 at 17:57 | Permalink | Reply

      While I do agree WP UI is the best, it lags WAY BEHIND in apps. Also, everyone has their choice while buying a phone. I have all three and they are great in their own right.

  12. Posted March 29, 2015 at 17:08 | Permalink | Reply

    It’s a shame that you have to decrease performance just to support junk like this or any other. In my opinion 2.3 Android should already be unsupported.

    • Posted March 29, 2015 at 17:58 | Permalink | Reply

      Uhh, I have that same tablet and it shipped with 4.4.2 KitKat.

      • Posted March 29, 2015 at 18:14 | Permalink | Reply

        Obviously. I never said it shipped with 2.3. Did I ever write that, no

  13. Posted March 29, 2015 at 17:17 | Permalink | Reply

    Good thing I’ll never buy a Samsung becuase im an IOS person

  14. Posted March 29, 2015 at 17:27 | Permalink | Reply

    He read my email! He really does read them!

  15. Posted March 29, 2015 at 17:49 | Permalink | Reply

    I have this same tablet along with a Lumia 525. But I have never tested SC on it. My friend though who has a HP Slate 8 inch tablet while playing SC faces this same exact issue. Glad to see you are fixing it :).

  16. Posted March 29, 2015 at 17:50 | Permalink | Reply

    Is the update out on Amazon? Boy, it’s been a couple of years since I commented here!

  17. Posted March 29, 2015 at 17:55 | Permalink | Reply

    My cousin had same problem on his samsung galaxy tab.
    When i saw it, i told him that i should try to fix it.

    I went to settings then performance and then turned the sky rendering mode disable.

    The problem was solved and he was happy by my work.

    • Posted March 29, 2015 at 18:02 | Permalink | Reply

      I’ll tell my friend with the HP slate that I mentioned right above your comment to try that. Thanks :D

  18. Posted March 29, 2015 at 18:29 | Permalink | Reply

    I don’t understand…
    I have a Samsung Galaxy S3 mini and there isn’t this graphical bug…
    Is that a problem for new Samsung devices?
    Someone can explain to me better?

    • Posted March 30, 2015 at 05:49 | Permalink | Reply

      There are apparently BAD internals inside this specific device which screw up Survivalcraft. Nothing to worry, they are pretty cheap and if you spend more you get better :)

  19. DrSmCraft
    Posted March 29, 2015 at 18:33 | Permalink | Reply

    Since no one called first, I’m first!

    • MTB adventures/RCs to the limit
      Posted March 29, 2015 at 18:54 | Permalink | Reply

      no mrshots did. i got 2nd!!!!! HE HEHEHEHE HEFJOJOH)………………

  20. Posted March 29, 2015 at 18:41 | Permalink | Reply

    Hello , I had a doubt about it, you Kaalus refers to all models TAB4 7.0, or only some variant ?

    I have the tab 4 , SMT230NT model , it does not show any graphic bug so far .

    If you tell me that it is not good , I immediately break = D .

    Sorry for my English , I use translator.

    • Posted March 29, 2015 at 21:57 | Permalink | Reply

      It is SM-T230 with Android 4.4.2. If you look in Settings/Compatibility/Game Log, GLES Renderer should read Vivante GC1000.

      • Posted March 29, 2015 at 23:43 | Permalink | Reply

        Hello Kaalus
        Gles Renderer = Adreno ( tm) 305
        That’s good?
        the manufacturing South America , it is generally not good option. I’m lucky, I’ll have no problems in playing SC .
        Thank Kaalus the good work .

        Sorry for my English , I use translator.

      • Posted March 30, 2015 at 01:06 | Permalink | Reply

        Kaalus. Since you have this tablet (as I do) can you do me a favor? Can you grab the calendar storage apk off of it and send it to me? I accidentally deleted mine (I’m rooted).

      • Posted March 30, 2015 at 02:30 | Permalink | Reply

        glitches are worse now.

  21. Posted March 29, 2015 at 18:57 | Permalink | Reply

    Dear Kaalus.
    Thank you for trying to fix this.
    I have this tablet and I have this glitch.
    All I can say is:
    Please don’t decrease performance.
    I will better buy a better device and have a very great version of survivalcraft as a downscaled game.
    I can live with this bug. All I have to do is deactive the clouds in the settings.

    Would you please make an option to deactivate sensors (hunger, temparature and health) ?
    I think without sensors the game is more immersive.

    Thank you!

  22. Posted March 29, 2015 at 19:36 | Permalink | Reply

    Indeed, devices are so cheap nowadays and easy to replace, there are probably hundreds of app not woking on these devices, I have a Samsung Galaxy Tab Pro 8.4 myself (Snapdragon800/Adreno330) so it is easy for me to talk…But…Can people not turn off the sky in settings, or create an option to select an “alternative devices” option under a new settings tab like “experimental features”?
    Or that people can create their own sky textures? (Like a gigantic other planet dooming up from the horizon.)
    But it is probably easier said than done I’m sure! (-:
    Or perhaps create a poll on the Lefora forums on how many people are troubled by it?
    Perhaps people are not really troubled at all?

  23. Posted March 29, 2015 at 19:39 | Permalink | Reply

    Uhm… About my previous comment; I don’t think sky textures would not work though for this glitch…

  24. Posted March 29, 2015 at 19:49 | Permalink | Reply

    …And there is already a “compatibility” tab, hahaha! Sorry ’bout that!
    But perhaps turning off multithreading will fix the problem?

  25. Posted March 29, 2015 at 20:21 | Permalink | Reply

    Twenty-Second!!!

  26. Posted March 29, 2015 at 20:34 | Permalink | Reply

    QUESTION – can you make this workaround optional in the UI?

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