<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>239599</bug_id>
          
          <creation_ts>2022-04-21 05:35:40 -0700</creation_ts>
          <short_desc>Crash or or no rendering when antialiasing is enabled</short_desc>
          <delta_ts>2022-04-21 21:28:24 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>ANGLE</component>
          <version>Safari 15</version>
          <rep_platform>All</rep_platform>
          <op_sys>All</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>DUPLICATE</resolution>
          <dup_id>238196</dup_id>
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Major</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Philip Taylor">philip.taylor</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>dino</cc>
    
    <cc>geofflang</cc>
    
    <cc>gman</cc>
    
    <cc>jonahr</cc>
    
    <cc>kbr</cc>
    
    <cc>kkinnunen</cc>
    
    <cc>kpiddington</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1863266</commentid>
    <comment_count>0</comment_count>
    <who name="Philip Taylor">philip.taylor</who>
    <bug_when>2022-04-21 05:35:40 -0700</bug_when>
    <thetext>I have noticed several people online saying that antialiasing has been causing problems recently on Safari, but I couldn&apos;t find a bug related to it...

This page loads, because antialiasing is disabled.
https://docs.zea.live/Safari-Crash-Test/?grid

This page crashes because antialiasing is enabled.
https://docs.zea.live/Safari-Crash-Test/?grid&amp;antialias


Note: we also have the same behavior in Chrome on Apple devices, so I am guessing that the issues is in the ANGLE/Metal layer that they both use.


Note2: this bug is using the same repro scene as this other issue: https://bugs.webkit.org/show_bug.cgi?id=239015</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1863539</commentid>
    <comment_count>1</comment_count>
    <who name="Kenneth Russell">kbr</who>
    <bug_when>2022-04-21 21:19:15 -0700</bug_when>
    <thetext>This is a duplicate of the other WebGL MSAA bugs. The test case loads in Safari Technology Preview Release 143 (Safari 15.4, WebKit 17614.1.7.7) on an M1 Mac and  doesn&apos;t load on Safari Version 15.4 (17613.1.17.1.13).

*** This bug has been marked as a duplicate of bug 238196 ***</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>