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    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
    </build-info>


<item>
            <title>[MC-3998] Chunks dont display under certain circumstances</title>
                <link>https://bugs.mojang.com/browse/MC-3998</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Like bug &lt;a href=&quot;https://bugs.mojang.com/browse/MC-129&quot; title=&quot;Chunks not loading surface, revealing caves, etc.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-129&quot;&gt;&lt;del&gt;MC-129&lt;/del&gt;&lt;/a&gt; I have a chunk that does not display properly (See screenshot). See bug &lt;a href=&quot;https://mojang.atlassian.net/browse/MC-129?focusedCommentId=25701&amp;amp;page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-25701&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;MC-129 comment 25701&lt;/a&gt; why this is not a duplicate.&lt;/p&gt;

&lt;p&gt;Attached are two screenshots I can reproduce both views repeatedly by moving one tile forwards/backwards. So the chunk appears/disappears depending on my position. (It may be necessary to keep the crosshair on the blocks right in front on the same ledge)&lt;/p&gt;

&lt;p&gt;This is reproduceable on SMP even after quiting and reopening the world. I have a savegame if someone is interested&lt;/p&gt;

&lt;p&gt;This is with advanced OpenGL On, turning that of also toggles the bug&lt;/p&gt;</description>
                <environment>OSX 10.7.5</environment>
        <key id="16312">MC-3998</key>
            <summary>Chunks dont display under certain circumstances</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="hmvp">Hiram</reporter>
                        <labels>
                            <label>chunk</label>
                            <label>rendering</label>
                    </labels>
                <created>Fri, 30 Nov 2012 13:22:09 +0100</created>
                <updated>Sun, 15 Nov 2015 21:34:59 +0100</updated>
                            <resolved>Sat, 26 Jul 2014 12:13:41 +0200</resolved>
                                    <version>Minecraft 1.4.5</version>
                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Minecraft 1.5</version>
                    <version>Minecraft 1.5.1</version>
                    <version>Minecraft 1.5.2</version>
                    <version>Minecraft 1.6</version>
                    <version>Minecraft 1.6.1</version>
                                                                        <votes>13</votes>
                                    <watches>4</watches>
                                                                            <comments>
                            <comment id="180142" author="kumasasa" created="Sat, 26 Jul 2014 12:13:41 +0200"  >&lt;p&gt;This ticket got superseeded by &lt;a href=&quot;https://bugs.mojang.com/browse/MC-63020&quot; title=&quot;Some chunks are not rendered in first person from some angles in certain situations (incorrect frustum culling)&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-63020&quot;&gt;&lt;del&gt;MC-63020&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="178558" author="bmenrigh" created="Wed, 23 Jul 2014 21:28:04 +0200"  >&lt;p&gt;Yes I saw &lt;a href=&quot;https://twitter.com/Dinnerbone/status/491953005776748544&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://twitter.com/Dinnerbone/status/491953005776748544&lt;/a&gt; this morning &quot;We&apos;ll release a &apos;b&apos; snapshot soon to fix the chunk-vanishing issue (and some crashes)&quot;.  I will test and report back in a day or two.&lt;/p&gt;</comment>
                            <comment id="178540" author="garyclosse" created="Wed, 23 Jul 2014 21:11:47 +0200"  >&lt;p&gt;Advanced OpenGL has been removed in 14w30a.&lt;/p&gt;</comment>
                            <comment id="137452" author="JIRAUSER45280" created="Sun, 2 Feb 2014 07:52:11 +0100"  >&lt;p&gt;As long as #42310 is a duplicate version 1.7.4 is still affected.&lt;/p&gt;</comment>
                            <comment id="133376" author="galaxy_2alex" created="Tue, 21 Jan 2014 23:56:09 +0100"  >&lt;p&gt;Is this still a concern in the &lt;em&gt;current Minecraft version&lt;/em&gt; &lt;b&gt;1.7.4&lt;/b&gt; / Launcher version &lt;b&gt;1.3.8&lt;/b&gt; or later? If so, please &lt;em&gt;update the affected versions&lt;/em&gt; in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="105535" author="bmenrigh" created="Sun, 22 Sep 2013 19:00:47 +0200"  >&lt;p&gt;This is still easily reproducible in the latest snapshot (13w38c) in the same location as my screenshot and previous tests.  &quot;Advanced OpenGL&quot; still toggles it.  The other changes in rendering don&apos;t seem to have any effect.&lt;/p&gt;</comment>
                            <comment id="81091" author="bmenrigh" created="Wed, 3 Jul 2013 01:32:35 +0200"  >&lt;p&gt;This is still happening in 1.6.1 in the same place as my screen shot.&lt;/p&gt;</comment>
                            <comment id="55105" author="bmenrigh" created="Mon, 18 Mar 2013 19:00:25 +0100"  >&lt;p&gt;I&apos;m pretty sure the issue you&apos;re seeing has to do with chunks not loading or being processed by your client fast enough.  For example, if you&apos;re playing on a server and your client cant download chunks fast enough you&apos;ll see holes like this.&lt;/p&gt;

&lt;p&gt;The issue Hiram and I are describing is always reproducible, can be toggled back and forth by minor changes in a players position and view, and goes away when Advanced OpenGL is turned off.  As long as the player&apos;s perspective stays the same portions of the chunks will not be rendered.  The issue won&apos;t go away by waiting.&lt;/p&gt;

&lt;p&gt;You should try pressing F3 and a to reload chunks to see if that makes your issue go away.&lt;/p&gt;</comment>
                            <comment id="55079" author="kami_no_yari" created="Mon, 18 Mar 2013 17:09:00 +0100"  >&lt;p&gt;If I turning off Avanced OpenGL the issue continue but is faster. It means that the issue lasts less than a second. In multiplayer mode, if someone make any action, the issue happend and lasts longer.&lt;/p&gt;</comment>
                            <comment id="55035" author="bmenrigh" created="Mon, 18 Mar 2013 15:33:36 +0100"  >&lt;p&gt;&#211;scar does turning off Advanced OpenGL toggle that issue on and of?  Also, does slightly changing your view or the location you stand toggle the issue?&lt;/p&gt;</comment>
                            <comment id="55013" author="kami_no_yari" created="Mon, 18 Mar 2013 14:33:35 +0100"  >&lt;p&gt;In this screenshots can see that my problem is so close.&lt;/p&gt;</comment>
                            <comment id="53890" author="bmenrigh" created="Sat, 16 Mar 2013 06:07:26 +0100"  >&lt;p&gt;Crash report taken while tree top was missing.&lt;/p&gt;</comment>
                            <comment id="53889" author="bmenrigh" created="Sat, 16 Mar 2013 06:06:29 +0100"  >&lt;p&gt;I just tested in 1.5 and indeed the same portion of the tree disappears in the same location in the same way.  Advanced OpenGL still toggles the bug.  Note that I&apos;m using Linux even though the OS for this bug is set to OS X.  I will attach a crash report when the tree top is missing however I perused the crash report and don&apos;t see much of anything useful.&lt;/p&gt;</comment>
                            <comment id="53842" author="bljat" created="Sat, 16 Mar 2013 01:48:50 +0100"  >&lt;p&gt;Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.&lt;/p&gt;</comment>
                            <comment id="49423" author="bmenrigh" created="Sun, 3 Mar 2013 19:46:58 +0100"  >&lt;p&gt;Added screenshot where tree top in back left has disappeared.  The trunk of the tree is still visible implying that at least some of the chunk is still being rendered.&lt;/p&gt;</comment>
                            <comment id="49422" author="bmenrigh" created="Sun, 3 Mar 2013 19:46:16 +0100"  >&lt;p&gt;Added screenshot where tree top in back left is visible.&lt;/p&gt;</comment>
                            <comment id="49421" author="bmenrigh" created="Sun, 3 Mar 2013 19:44:58 +0100"  >&lt;p&gt;The description that an entire chunk doesn&apos;t display is not completely accurate.  The screenshots of this bug that look down at the ground and can see through to caves make it look as though an entire chunk isn&apos;t rendering.  If you look at the screenshots I provided in &lt;a href=&quot;https://bugs.mojang.com/browse/MC-10846&quot; title=&quot;Advanced OpenGL causing some regions to not render in certain views&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-10846&quot;&gt;&lt;del&gt;MC-10846&lt;/del&gt;&lt;/a&gt; you can see that sometimes it&apos;s just a portion of a chunk that disappears.  The top of the tree goes away but the trunk and everything below the top that is all part of the same chunk are still drawn.&lt;/p&gt;

&lt;p&gt;Perhaps the game further subdivides chunks?  Possibly into 16x16x16 cubes?&lt;/p&gt;

&lt;p&gt;Also, this bug is not dependant on moving your position.  It&apos;s easiest to trigger moving back and forth but you can also trigger it by standing in a single location an moving your view.&lt;/p&gt;

&lt;p&gt;Reloading chunks with F3 + a has no effect on the bug.&lt;/p&gt;

&lt;p&gt;I suspect this bug is probably a failure in z-ordering and occlusion / culling of backfaces of an algorithm such as &quot;Painter&apos;s Algorithm&quot;: &lt;a href=&quot;https://en.wikipedia.org/wiki/Painter%27s_algorithm&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://en.wikipedia.org/wiki/Painter%27s_algorithm&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;This bug might just be an edge case in the algorithm where it incorrectly removes or incorrectly orders the drawing of regions because getting the z-ordering correct is difficult?&lt;/p&gt;</comment>
                            <comment id="26401" author="kude" created="Mon, 3 Dec 2012 03:38:28 +0100"  >&lt;p&gt;Try holding F3 and pressing &quot;a.&quot; That reloads your chunks. It works for me.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                        <issuelink>
            <issuekey id="90403">MC-63020</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="22832">MC-9263</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="24824">MC-10846</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="27020">MC-12270</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="27771">MC-12869</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="31019">MC-15310</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="32552">MC-16655</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="33306">MC-17277</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="66304">MC-42310</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="79247">MC-53058</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="82620">MC-56103</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="86272">MC-59068</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="106475">MC-77753</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="126879">MC-92786</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10103">
                    <name>Relates</name>
                                                                <inwardlinks description="relates to">
                                        <issuelink>
            <issuekey id="11375">MC-129</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="14495" name="2012-11-30_13.06.15.png" size="290250" author="hmvp" created="Fri, 30 Nov 2012 13:22:09 +0100"/>
                            <attachment id="14494" name="2012-11-30_13.06.21.png" size="300423" author="hmvp" created="Fri, 30 Nov 2012 13:22:09 +0100"/>
                            <attachment id="23302" name="2013-03-02_23.51.08.png" size="613224" author="bmenrigh" created="Sun, 3 Mar 2013 19:46:16 +0100"/>
                            <attachment id="23303" name="2013-03-02_23.51.10.png" size="605177" author="bmenrigh" created="Sun, 3 Mar 2013 19:46:58 +0100"/>
                            <attachment id="25067" name="crash-2013-03-16_04.59.47-client.txt" size="9552" author="bmenrigh" created="Sat, 16 Mar 2013 06:07:26 +0100"/>
                            <attachment id="25428" name="mine1.jpg" size="569823" author="kami_no_yari" created="Mon, 18 Mar 2013 14:33:35 +0100"/>
                            <attachment id="25429" name="mine2.jpg" size="541151" author="kami_no_yari" created="Mon, 18 Mar 2013 14:33:35 +0100"/>
                            <attachment id="25430" name="mine3.jpg" size="462835" author="kami_no_yari" created="Mon, 18 Mar 2013 14:33:35 +0100"/>
                            <attachment id="25431" name="mine4.jpg" size="537305" author="kami_no_yari" created="Mon, 18 Mar 2013 14:33:35 +0100"/>
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