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<p>Alright, that is good to know. I also ran the d3d12 build in a
Hyper-V Windows 11 VM, which are known to cause issues. For
example, this issue happens in those VMs with StageStyle.UNIFIED:
<a class="moz-txt-link-freetext" href="https://bugs.openjdk.org/browse/JDK-8154847">https://bugs.openjdk.org/browse/JDK-8154847</a> (kickstartfx uses the
unified stage style unless you turn on performance mode in the
settings menu)</p>
<p>On that system, the app sometimes froze completely, sometimes,
the rendered image got stuck. Changing the performance mode
setting and the property -Dprism.forceUploadingPainter=true
changed the behavior, but it was broken in some way in all
configurations.</p>
<p>You should be able to reproduce these issues easily with the
Windows Sandbox feature:
<a class="moz-txt-link-freetext" href="https://learn.microsoft.com/en-us/windows/security/application-security/application-isolation/windows-sandbox/windows-sandbox-install">https://learn.microsoft.com/en-us/windows/security/application-security/application-isolation/windows-sandbox/windows-sandbox-install</a></p>
<div class="moz-cite-prefix">On 21/01/2026 13:48, Lukasz Kostyra
wrote:<br>
</div>
<blockquote type="cite"
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<p class="MsoNormal"><span lang="PL">Thanks for checking.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="PL"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I ran the KickstartFX
build one more time, it failed but I found some leftover
global gradle.properties file which defined older JDK which
broke the build. Changing JDK to 25.0.1 everything built and
works fine.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I also found a way to
build KickstartFX using custom JFX (customJavaFxLibsPath in
build.gradle) and can reproduce your font issues locally on
D3D12. I’ll report back when I solve them on my end. :)<br>
<br>
-Lukasz<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">From:</span></b><span
lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">
Christopher Schnick <a class="moz-txt-link-rfc2396E" href="mailto:crschnick@xpipe.io"><crschnick@xpipe.io></a>
<br>
<b>Sent:</b> Tuesday, 20 January 2026 16:24<br>
<b>To:</b> Lukasz Kostyra
<a class="moz-txt-link-rfc2396E" href="mailto:lukasz.kostyra@oracle.com"><lukasz.kostyra@oracle.com></a><br>
<b>Cc:</b> OpenJFX <a class="moz-txt-link-rfc2396E" href="mailto:openjfx-dev@openjdk.org"><openjfx-dev@openjdk.org></a><br>
<b>Subject:</b> [External] : Re: JavaFX Direct3D 12 -
Second EA release<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p>In our main application I am getting the following error
spammed in the logs:<o:p></o:p></p>
<p><span
style="font-size:10.0pt;font-family:"Courier New"">16:18:08:571
- error: java.lang.NullPointerException: Cannot invoke
"com.sun.prism.Texture.getPixelFormat()" because "tex" is
null<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.prism.impl.BaseGraphics.drawTexture"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.prism.impl.BaseGraphics.drawTexture</a>(BaseGraphics.java:464)<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.prism.impl.ps.BaseShaderGraphics.drawTexture"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.prism.impl.ps.BaseShaderGraphics.drawTexture</a>(BaseShaderGraphics.java:159)<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGImageView.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGImageView.renderContent</a>(NGImageView.java:123)<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGImageView.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGImageView.doRender</a>(NGImageView.java:103)<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:571 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderForClip"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderForClip</a>(NGNode.java:2279)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderRectClip"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderRectClip</a>(NGNode.java:2186)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderClip"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderClip</a>(NGNode.java:2213)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.CacheFilter.renderNodeToCache"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.CacheFilter.renderNodeToCache</a>(CacheFilter.java:682)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.CacheFilter.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.CacheFilter.render</a>(CacheFilter.java:586)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderCached"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderCached</a>(NGNode.java:2343)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2054)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderForClip"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderForClip</a>(NGNode.java:2279)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderRectClip"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderRectClip</a>(NGNode.java:2186)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderClip"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderClip</a>(NGNode.java:2213)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.CacheFilter.renderNodeToCache"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.CacheFilter.renderNodeToCache</a>(CacheFilter.java:682)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.CacheFilter.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.CacheFilter.render</a>(CacheFilter.java:586)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderCached"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.renderCached</a>(NGNode.java:2343)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2054)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGGroup.renderContent</a>(NGGroup.java:266)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGRegion.renderContent</a>(NGRegion.java:579)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.doRender</a>(NGNode.java:2063)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.sg.prism.NGNode.render</a>(NGNode.java:1955)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.tk.quantum.ViewPainter.doPaint"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.ViewPainter.doPaint</a>(ViewPainter.java:481)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.tk.quantum.ViewPainter.paintImpl"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.ViewPainter.paintImpl</a>(ViewPainter.java:329)<br>
16:18:08:572 - error: at <a
href="mailto:javafx.graphics@26-internal/com.sun.javafx.tk.quantum.UploadingPainter.run"
moz-do-not-send="true" class="moz-txt-link-freetext">
javafx.graphics@26-internal/com.sun.javafx.tk.quantum.UploadingPainter.run</a>(UploadingPainter.java:143)<br>
16:18:08:572 - error: at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:545)<br>
16:18:08:572 - error: at
java.base/java.util.concurrent.FutureTask.runAndReset$$$capture(FutureTask.java:369)<br>
16:18:08:572 - error: at
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java)</span><o:p></o:p></p>
<p>In kickstartfx, I still get the font rendering issues. Can
you share the problems you encountered? I tried to build it on
a blank VM with git clone, setting a JDK25 in the PATH, and
running gradlew.bat run without issues.<o:p></o:p></p>
<div>
<p class="MsoNormal">On 20/01/2026 15:40, Lukasz Kostyra
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span lang="EN-US">Hi Christopher,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">After Christmas break
I came back to this issue with some new patches. There
were some problems I found with the clear optimization, I
just submitted
<a
href="https://urldefense.com/v3/__https:/github.com/openjdk/jfx-sandbox/commit/8d3ec1deff714caa4eab779581a341e18dd78f31__;!!ACWV5N9M2RV99hQ!Js1REsWcDjMJTtd7_06jSspPNfrXAhmcztgQtVr7IH0e7xUQW51OhBZ-P9O6TfdB0v6e7Brk7yYlHI7mq363A1sg$"
moz-do-not-send="true">
https://github.com/openjdk/jfx-sandbox/commit/8d3ec1deff714caa4eab779581a341e18dd78f31</a>
and according to my local testing everything seems to be
fine now.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">When you have a
moment, could you check out the changes above and let me
know if everything works correctly in your app?</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">If there are still
problems I would like to find a way to build your app and
test it locally. I tried doing that earlier via
</span><a
href="https://urldefense.com/v3/__https:/github.com/xpipe-io/kickstartfx__;!!ACWV5N9M2RV99hQ!K0ztYeDtYFyIwxlmMB-9MDuvY7Xyd60-LuJK99hex3mclCWl29MJfnxkz2mmECxINzNr5bAdKvQ64O9Xn9_QfENu$"
moz-do-not-send="true">https://github.com/xpipe-io/kickstartfx</a>
<span lang="EN-US">you linked earlier but encountered some
problems when building, so I’m going to need your help or
some instructions on how to build the app.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">-Lukasz</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">From:</span></b><span
lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">
openjfx-dev
<a href="mailto:openjfx-dev-retn@openjdk.org"
moz-do-not-send="true"><openjfx-dev-retn@openjdk.org></a>
<b>
On Behalf Of </b>Lukasz Kostyra<br>
<b>Sent:</b> Wednesday, 10 December 2025 13:29<br>
<b>To:</b> Christopher Schnick <a
href="mailto:crschnick@xpipe.io"
moz-do-not-send="true"><crschnick@xpipe.io></a><br>
<b>Cc:</b> OpenJFX <a
href="mailto:openjfx-dev@openjdk.org"
moz-do-not-send="true"><openjfx-dev@openjdk.org></a><br>
<b>Subject:</b> RE: Re: JavaFX Direct3D 12 - Second EA
release</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">It should work fine
without the property. Thanks for your help, I’ll keep
searching.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">-Lukasz</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">From:</span></b><span
lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">
Christopher Schnick <<a
href="mailto:crschnick@xpipe.io"
moz-do-not-send="true" class="moz-txt-link-freetext">crschnick@xpipe.io</a>>
<br>
<b>Sent:</b> Tuesday, 9 December 2025 17:10<br>
<b>To:</b> Lukasz Kostyra <<a
href="mailto:lukasz.kostyra@oracle.com"
moz-do-not-send="true" class="moz-txt-link-freetext">lukasz.kostyra@oracle.com</a>><br>
<b>Cc:</b> OpenJFX <<a
href="mailto:openjfx-dev@openjdk.org"
moz-do-not-send="true" class="moz-txt-link-freetext">openjfx-dev@openjdk.org</a>><br>
<b>Subject:</b> [External] : Re: JavaFX Direct3D 12 -
Second EA release</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p>I tried this commit, but the problem shows up again. I
tested the previous commit with the passed property again,
and that one still works.<o:p></o:p></p>
<p>Or should I still pass the property in this commit as well?<o:p></o:p></p>
<div>
<p class="MsoNormal">On 09/12/2025 4:36 PM, Lukasz Kostyra
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span lang="PL">Hi Christopher,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="PL"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I updated the
direct3d12 branch with the fix -
<a
href="https://urldefense.com/v3/__https:/github.com/openjdk/jfx-sandbox/commit/ffc078b9593c44a8ed0629a74b8bda18357f93a8__;!!ACWV5N9M2RV99hQ!OLgt8HGQc2SZQqycgcFI2bUPgQXEdES6FZw0Gn_bo_kiS2WoY4A68Z3JxY-ElC_58HSF12FXKCoat4MrrESK9ceD$"
moz-do-not-send="true">
https://github.com/openjdk/jfx-sandbox/commit/ffc078b9593c44a8ed0629a74b8bda18357f93a8</a>
. Let me know how it works and if the problem has been
resolved.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">-Lukasz</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">From:</span></b><span
lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00"> openjfx-dev
<a href="mailto:openjfx-dev-retn@openjdk.org"
moz-do-not-send="true"><openjfx-dev-retn@openjdk.org></a>
<b>
On Behalf Of </b>Lukasz Kostyra<br>
<b>Sent:</b> Thursday, 4 December 2025 11:52<br>
<b>To:</b> Christopher Schnick <a
href="mailto:crschnick@xpipe.io"
moz-do-not-send="true"><crschnick@xpipe.io></a><br>
<b>Cc:</b> OpenJFX <a
href="mailto:openjfx-dev@openjdk.org"
moz-do-not-send="true"><openjfx-dev@openjdk.org></a><br>
<b>Subject:</b> RE: Re: JavaFX Direct3D 12 - Second
EA release</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Thanks for checking.
I filed <a
href="https://bugs.openjdk.org/browse/JDK-8373088"
moz-do-not-send="true" class="moz-txt-link-freetext">
https://bugs.openjdk.org/browse/JDK-8373088</a> to
track this since this is unrelated to specifically text,
will probably get to it in a few days.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">-Lukasz</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">From:</span></b><span
lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00"> Christopher
Schnick <<a href="mailto:crschnick@xpipe.io"
moz-do-not-send="true"
class="moz-txt-link-freetext">crschnick@xpipe.io</a>>
<br>
<b>Sent:</b> Wednesday, 3 December 2025 18:53<br>
<b>To:</b> Lukasz Kostyra <<a
href="mailto:lukasz.kostyra@oracle.com"
moz-do-not-send="true"
class="moz-txt-link-freetext">lukasz.kostyra@oracle.com</a>><br>
<b>Cc:</b> OpenJFX <<a
href="mailto:openjfx-dev@openjdk.org"
moz-do-not-send="true"
class="moz-txt-link-freetext">openjfx-dev@openjdk.org</a>><br>
<b>Subject:</b> [External] : Re: JavaFX Direct3D 12
- Second EA release</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p>This commit fixes the problem when the property is set to
false and it shows up again if the property is not set to
false<o:p></o:p></p>
<div>
<p class="MsoNormal">On 03/12/2025 5:54 PM, Lukasz Kostyra
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span lang="EN-US">Hi Christopher,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I did not find the
way to reproduce this locally, but I found a problem
with one of the optimizations that is in the backend.
To double check if that is in fact the issue I pushed
<a
href="https://urldefense.com/v3/__https:/github.com/openjdk/jfx-sandbox/commit/7078d621dc282ab8439800b84b78377dec3eea89__;!!ACWV5N9M2RV99hQ!JFEGrvRPb5-P9TxSZen0sbWuRq_Go_lMwM3kO5m0u_RlMgJW1cDfe8HxdAlgEedAsg4aSm99IyDYzbsN8x-LMbPQ$"
moz-do-not-send="true">
https://github.com/openjdk/jfx-sandbox/commit/7078d621dc282ab8439800b84b78377dec3eea89</a>
to disable the optimization (it is on by default,
disabling it fixes that specific problem on my end)
and I’d like to double-check if this is the correct
lead.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">When you have a
moment, could you build JFX with that change and run
your app with “-Dprism.d3d12.clearOpts=false” added to
the command line?</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">If the problem
persists with prism.d3d12.clearOpts set to false I
would need some more information on how these labels
are rendered to track this down.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Thanks,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">-Lukasz</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">From:</span></b><span
lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00"> Christopher
Schnick
<a href="mailto:crschnick@xpipe.io"
moz-do-not-send="true"><crschnick@xpipe.io></a>
<br>
<b>Sent:</b> Friday, 28 November 2025 13:25<br>
<b>To:</b> Lukasz Kostyra <a
href="mailto:lukasz.kostyra@oracle.com"
moz-do-not-send="true"><lukasz.kostyra@oracle.com></a><br>
<b>Cc:</b> OpenJFX <a
href="mailto:openjfx-dev@openjdk.org"
moz-do-not-send="true"><openjfx-dev@openjdk.org></a><br>
<b>Subject:</b> [External] : Re: JavaFX Direct3D
12 - Second EA release</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p>I did not encounter the vanishing issue anymore with
that build, so at least it is usable.<o:p></o:p></p>
<p>However, the font rendering issue still exists for some
nodes:<o:p></o:p></p>
<p><img border="0" width="810" height="247"
style="width:8.4375in;height:2.5729in"
id="_x0000_i1026"
src="cid:part1.58DR9ES7.LG6754Mm@xpipe.io" class=""><o:p></o:p></p>
<p>It is not deterministic, meaning that if I just scroll
the scrollpane forward and back, the same text might get
rendered correctly.<o:p></o:p></p>
<p>Also, did you see the performance results I posted for
my AMD system? Performance was quite bad there, so this
is not in a stage where I can test this in production a
bit.<o:p></o:p></p>
<div>
<p class="MsoNormal">On 28/11/2025 12:41, Lukasz Kostyra
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span lang="PL">Hi Christopher,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="PL"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I just pushed a
fix for JDK-8371995 onto direct3d12 branch in the
sandbox -
<a
href="https://urldefense.com/v3/__https:/github.com/openjdk/jfx-sandbox/tree/direct3d12__;!!ACWV5N9M2RV99hQ!KuiGt3yDg1iNtCswOA3yLUbPKFpTnRKQE9clxnsd6xQRhnGJLoz7c697JC77xG2Q4qwsMWDePar6hRx9DY1uTPpy$"
moz-do-not-send="true">
https://github.com/openjdk/jfx-sandbox/tree/direct3d12</a> . If you find
a moment, could you build JFX from that branch and
check if your app works correctly?</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">-Lukasz</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">From:</span></b><span
lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00"> openjfx-dev
<a href="mailto:openjfx-dev-retn@openjdk.org"
moz-do-not-send="true"><openjfx-dev-retn@openjdk.org></a>
<b>
On Behalf Of </b>Lukasz Kostyra<br>
<b>Sent:</b> Monday, 17 November 2025 15:14<br>
<b>To:</b> Christopher Schnick <a
href="mailto:crschnick@xpipe.io"
moz-do-not-send="true"><crschnick@xpipe.io></a><br>
<b>Cc:</b> OpenJFX <a
href="mailto:openjfx-dev@openjdk.org"
moz-do-not-send="true"><openjfx-dev@openjdk.org></a><br>
<b>Subject:</b> RE: Re: JavaFX Direct3D 12 -
Second EA release</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I might’ve found
the problem, there is an assertion that triggers
when multiple text objects using different fonts are
drawn. It could be related (AFAIK Label controls
will eventually end up at the same text rendering
routines as Text nodes). Assertions are compiled out
on Release for performance, so there is a chance it
would corrupt the rendering without anything
meaningful shown on screen.<br>
<br>
To track this I just filed <a
href="https://bugs.openjdk.org/browse/JDK-8371995"
moz-do-not-send="true"
class="moz-txt-link-freetext">
https://bugs.openjdk.org/browse/JDK-8371995</a> .
I will check it and let you know when I fix it.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">On your side It
might still be handy to build JFX in DebugNative, to
confirm if the triggered assertion is the same and
to later confirm if the fix is working for you too.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">-Lukasz</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">From:</span></b><span
lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00"> Christopher
Schnick <<a href="mailto:crschnick@xpipe.io"
moz-do-not-send="true"
class="moz-txt-link-freetext">crschnick@xpipe.io</a>>
<br>
<b>Sent:</b> Saturday, 15 November 2025 17:39<br>
<b>To:</b> Lukasz Kostyra <<a
href="mailto:lukasz.kostyra@oracle.com"
moz-do-not-send="true"
class="moz-txt-link-freetext">lukasz.kostyra@oracle.com</a>><br>
<b>Cc:</b> OpenJFX <<a
href="mailto:openjfx-dev@openjdk.org"
moz-do-not-send="true"
class="moz-txt-link-freetext">openjfx-dev@openjdk.org</a>><br>
<b>Subject:</b> Re: [External] : Re: JavaFX
Direct3D 12 - Second EA release</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p>Forgot to add, there is nothing out of the ordinary
printed in the verbose logs.<br>
<br>
If I find the time, I can look into compiling a debug
build.<o:p></o:p></p>
<p>But the problem should be reproducible somehow when
just automatically creating a lot of labels with
random styles, sizes, and text. Some of them should
break as they did for me.<o:p></o:p></p>
<div>
<p class="MsoNormal">On 15/11/2025 17:34, Christopher
Schnick wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p>Ok, so I had more time to debug it. The one weird
thing I observed when it was working was that some
labels have corrupted text rendering:<o:p></o:p></p>
<p><img border="0" width="810" height="501"
style="width:8.4375in;height:5.2187in"
id="Picture_x0020_1"
src="cid:part2.mWhPdeY0.0q2sUgSm@xpipe.io"
class=""><o:p></o:p></p>
<p><br>
Not all of them, most are fine. There are no
differences in terms of style classes etc. between
the labels. When scrolling, the rendering sometimes
switches between this corrupted and normal state
after some delay.<br>
<br>
After a while I also figured out that text rendering
is responsible for the issue of the nodes vanishing:
Certain label contents broke the renderer. For
example, in my application, the string "Password
manager" when assigned to a label broke it and
nothing was rendered anymore. I tried to find an
easy reproducer but was not able to. It's probably
very dependent on all the different style classes
that influence the text shape/size/etc.<o:p></o:p></p>
<div>
<p class="MsoNormal">On 13/11/2025 16:30, Lukasz
Kostyra wrote:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span lang="PL">Thanks for
checking.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="PL"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">It is very
possible the D3D12 runtime did not like
something, could be related to your specific
hardware. D3D12 by now has many extensions which
differ depending on hardware and can lift
certain restrictions - we already internally had
a case where one GPU had some restriction that
was not enforced on another GPU and we had to
accommodate that.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">The first
step would be to try running D3D12 with
“-Dprism.verbose=true -Dprism.debug=true”. These
should print additional logs that might have
some extra information.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">If there’s
nothing useful there, next step would be to
build JavaFX with -PCONF=DebugNative - this will
compile shaders in Debug, add assertions and
debug logs to the backend - and then run your
app with D3D12 debug layers and GPU debugging
enabled by adding
“-Dprsim.d3d12.debugLayers=true
-Dprism.d3d12.gpuDebug=true”. Those will slow
down the app significantly, but will also tell
D3D12 to run additional API use and GPU use
checks.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">If the
problem happens during a render loop and debug
layers catch it, there is a chance it will
cascade into other errors and spam the console
output - you can tell D3D12 debug layers to
trigger an assertion on first encountered error
with “-Dprism.d3d12.breakOnError=true”.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I am running
out of time today to check this myself, but if
you find something let me know - I’ll try to
reproduce the problem myself and we’ll see where
we go from there.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Good luck!</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">- Lukasz</span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div
style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00">From:</span></b><span
lang="EN-US"
style="mso-ligatures:none;mso-fareast-language:#0C00"> Christopher
Schnick
<a href="mailto:crschnick@xpipe.io"
moz-do-not-send="true"><crschnick@xpipe.io></a>
<br>
<b>Sent:</b> Thursday, 13 November 2025
16:11<br>
<b>To:</b> Lukasz Kostyra <a
href="mailto:lukasz.kostyra@oracle.com"
moz-do-not-send="true"><lukasz.kostyra@oracle.com></a><br>
<b>Cc:</b> <a
href="mailto:openjfx-dev@openjdk.org"
moz-do-not-send="true"
class="moz-txt-link-freetext">openjfx-dev@openjdk.org</a><br>
<b>Subject:</b> [External] : Re: JavaFX
Direct3D 12 - Second EA release</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p>I just tried to run a project with provided jmods
and at some point, certain nodes are just not
rendered anymore and the window contents vanish.
But they render for a short period of time.<br>
<br>
There is no exception thrown as far as I can see,
so not sure what you need for debugging.<br>
<br>
For testing, this is the built application with
the d3d12 jmods that you can use to attempt to
reproduce the problem:
<a
href="https://urldefense.com/v3/__https:/we.tl/t-DJuX0BeqXm__;!!ACWV5N9M2RV99hQ!K0ztYeDtYFyIwxlmMB-9MDuvY7Xyd60-LuJK99hex3mclCWl29MJfnxkz2mmECxINzNr5bAdKvQ64O9Xn7hHbsl_$"
moz-do-not-send="true">
https://we.tl/t-DJuX0BeqXm</a> . It is built
from these sources: <a
href="https://urldefense.com/v3/__https:/github.com/xpipe-io/kickstartfx__;!!ACWV5N9M2RV99hQ!K0ztYeDtYFyIwxlmMB-9MDuvY7Xyd60-LuJK99hex3mclCWl29MJfnxkz2mmECxINzNr5bAdKvQ64O9Xn9_QfENu$"
moz-do-not-send="true">
https://github.com/xpipe-io/kickstartfx</a><o:p></o:p></p>
<div>
<p class="MsoNormal">On 13/11/2025 14:40, Lukasz
Kostyra wrote:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">Hello openjfx-dev,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">The second Early Access(EA)
build of JavaFX with the Windows Direct3D 12
rendering pipeline is now available at:
<a
href="https://urldefense.com/v3/__https:/jdk.java.net/javafxdirect3d12/__;!!ACWV5N9M2RV99hQ!K0ztYeDtYFyIwxlmMB-9MDuvY7Xyd60-LuJK99hex3mclCWl29MJfnxkz2mmECxINzNr5bAdKvQ64O9Xnw7Bj6i8$"
moz-do-not-send="true">
https://jdk.java.net/javafxdirect3d12/</a><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Please test this bundle and
share your feedback by:<o:p></o:p></p>
<p class="MsoNormal">- emailing <a
href="mailto:openjfx-dev@openjdk.java.net"
moz-do-not-send="true"
class="moz-txt-link-freetext">openjfx-dev@openjdk.java.net</a>
or<o:p></o:p></p>
<p class="MsoNormal">- reporting issues via JBS[<a
href="https://bugs.openjdk.org/"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://bugs.openjdk.org/</a>]
or at
<a
href="https://urldefense.com/v3/__https:/bugreport.java.com__;!!ACWV5N9M2RV99hQ!K0ztYeDtYFyIwxlmMB-9MDuvY7Xyd60-LuJK99hex3mclCWl29MJfnxkz2mmECxINzNr5bAdKvQ64O9Xn-g1RFIV$"
moz-do-not-send="true">
https://bugreport.java.com</a><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">This is the second EA
release. The backend is feature-complete
<span lang="EN-US">and went through a first
optimization pass</span>, but it <span
lang="EN-US">
still </span>requires <span lang="EN-US">some
</span>more testing <span lang="EN-US">
on more hardware variants </span>before we
can consider it complete. As such, with this
release we also would like to call for
<span lang="EN-US">help with </span>performance
<span lang="EN-US">testing the backend
</span>(more details on that will be sent in a
separate email thread).<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Known issues and pending
tasks are captured on JBS and can be accessed
using the filter provided on the Direct3D 12 EA
page [<a
href="https://urldefense.com/v3/__https:/jdk.java.net/javafxdirect3d12/__;!!ACWV5N9M2RV99hQ!K0ztYeDtYFyIwxlmMB-9MDuvY7Xyd60-LuJK99hex3mclCWl29MJfnxkz2mmECxINzNr5bAdKvQ64O9Xnw7Bj6i8$"
moz-do-not-send="true">https://jdk.java.net/javafxdirect3d12/</a>].
Before reporting a new bug, please review the
existing issues to avoid duplicates.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Important Notes:<o:p></o:p></p>
<p class="MsoNormal">1. This is a Windows-specific
feature, so only a Windows-specific bundle is
provided.<o:p></o:p></p>
<p class="MsoNormal">2. The default rendering
pipeline is set to d3d12. Use
"-Dprism.order=d3d" or "-Dprism.order=sw" to
select one of the other pipelines for comparison
testing.<o:p></o:p></p>
<p class="MsoNormal">3. It is recommended to use
JDK 25 or later.<o:p></o:p></p>
<p class="MsoNormal">4. At this stage D3D12
backend is feature-complete and went through the
first phase of optimization.
<span lang="EN-US">I</span>t is worth noting <span
lang="EN-US">that, while generally we noticed
performance improvements,</span> it might not
be
<span lang="EN-US">on par with D3D backend on
every machine combo - </span>we already
noted performance being worse on recent NVidia
discrete GPUs [<a
href="https://bugs.openjdk.org/browse/JDK-8370486"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://bugs.openjdk.org/browse/JDK-8370486</a>]
and are looking for solutions.<o:p></o:p></p>
<p class="MsoNormal">5. Issue behavior may vary
across different hardware<span lang="EN-US">, so
</span>please provide detailed information, such
as the output of "java -Dprism.verbose=true" or
used hardware, when reporting or discussing
issues.<o:p></o:p></p>
<p class="MsoNormal">6. Refer: Run HelloWorld
using JavaFX SDK [<a
href="https://urldefense.com/v3/__https:/openjfx.io/openjfx-docs/*install-javafx__;Iw!!ACWV5N9M2RV99hQ!K0ztYeDtYFyIwxlmMB-9MDuvY7Xyd60-LuJK99hex3mclCWl29MJfnxkz2mmECxINzNr5bAdKvQ64O9Xn8uMZKUY$"
moz-do-not-send="true">https://openjfx.io/openjfx-docs/#install-javafx</a>]<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">We look forward to your
feedback.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Lukasz<o:p></o:p></p>
<p class="MsoNormal"><span
style="mso-ligatures:none;mso-fareast-language:#0C00"> </span><o:p></o:p></p>
<p style="margin:5.0pt"><span
style="font-size:10.0pt;color:black">Confidential-
Oracle Internal</span><o:p></o:p></p>
</blockquote>
</blockquote>
</blockquote>
</blockquote>
</blockquote>
</blockquote>
</blockquote>
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