Portal 2 : une mise à jour surprise ajoute Vulkan pour de meilleures performances

<p class="long">Valve a ses raisons que la raison ignore, et Valve a d&eacute;cid&eacute; de publier une mise &agrave; jour majeure pour <img alt="" height="16" src="https://static.anvelia.net/cache/steam/img/type/1687.png" width="16" /> <a href="https://www.vossey.com/jeu/Portal-2--i1687.htm">Portal 2</a> en 2021.</p>

<p>C&#39;est donc presque 10 ans apr&egrave;s la sortie du titre que les d&eacute;veloppeurs ont d&eacute;cid&eacute; d&#39;impl&eacute;menter le moteur de rendu Vulkan qui devrait booster les performances du jeu. Int&eacute;gr&eacute; d&#39;office dans le moteur Source 2, Portal 2 est le premier jeu Source 1 &agrave; b&eacute;n&eacute;ficier de cette technologie. Si l&#39;int&eacute;r&ecirc;t sur Portal 2 est plut&ocirc;t limit&eacute;, il est probable qu&#39;il s&#39;agisse d&#39;un coup d&#39;essai pour Valve avant de d&eacute;ployer une mise &agrave; jour similaire sur un jeu Source pour lequel les performances sont capitales : Counter-Strike: Global Offensive. Pour activer Vulkan, il vous suffit d&#39;ajouter -vulkan dans vos options de lancement : attention toutefois puisque cela entra&icirc;nerait quelques bugs et micro-freeze pour certains joueurs.</p>

<p>Pour rappel, Vulkan est une API graphique comme DirectX qui est cens&eacute; mieux exploiter les composants de votre ordinateur en utilisant mieux les multiples coeurs de votre processeur par exemple.&nbsp;</p>

<div style="text-align:center">
<figure class="image" style="display:inline-block"><img alt="" height="338" src="https://static.anvelia.net/userfiles/images/steamgames/portal2/maxresdefault.jpg" width="600" />
<figcaption>Elles nous manquent ces petites tourelles</figcaption>
</figure>
</div>

<p>Revenons un peu sur Portal 2 qui b&eacute;n&eacute;ficie gr&acirc;ce &agrave; cette mise &agrave; jour de nombreuses corrections de bugs et am&eacute;liorations mineures comme une meilleure compatibilit&eacute; avec les p&eacute;riph&eacute;riques Hi-DPI. On notera que la mention &quot;&Eacute;changes bient&ocirc;t disponible&quot; a &eacute;galement &eacute;t&eacute; supprim&eacute; de l&#39;inventaire, il &eacute;tait grand temps ! Le changelog en Anglais est disponible ci-dessous :</p>

<p>Improvements:</p>

<ul>
	<li>Implemented a Vulkan render backend (currently accessible through the -vulkan command line parameter).</li>
	<li>Improved compile time for Perpetual Training Initiative puzzles.</li>
	<li>Improved advanced video settings descriptions.</li>
	<li>Made the game Hi-DPI aware.</li>
	<li>Smarter default video settings.</li>
	<li>Improved resolution of player avatars throughout the game.</li>
	<li>Players can now be invited to play co-op on controller.</li>
	<li>Button text contrast and padding has been improved when using a controller.</li>
	<li>Implemented a 360&deg; Spin action.</li>
	<li>The portalgun is now correctly affected by dynamic lights (projected textures) in the scene.</li>
	<li>Improved client-side prediction for coop play.</li>
	<li>Added the ability for workshop levels to pack particles into their map with a particles/map_manifest.txt</li>
	<li>Misc. rendering optimizations.</li>
	<li>Added an icon to the game on Linux.</li>
	<li>Removed the &quot;Trading Coming Soon&quot; button.</li>
</ul>

<p><br />
Bug Fixes:</p>

<ul>
	<li>Fixed a crash on startup that could happen on Linux.</li>
	<li>Fixed a crash that could occur in some community test chambers using BEEMod on Linux.</li>
	<li>Fixed the credits being corrupted on Linux.</li>
	<li>Fixed the intro videos for acts 2 and 3 not playing on Linux.</li>
	<li>Fixed the game starting in the top left corner of the screen on Linux.</li>
	<li>Fixed a crash in the PeTI if you placed a light strip above a laser catcher on the floor and linked it to a fizzler.</li>
	<li>Fixed the fizzler not playing the retract animation when turned off in new PeTI maps.</li>
	<li>Fixed being able to copy &#39;uncopyable&#39; items in the PeTI leading to invalid/broken levels.</li>
	<li>Fixed some items in PeTI not maintaining their portalability state when expanding the chamber boundaries.</li>
	<li>Fixed a crash if PeTI avatars could not be retrieved.</li>
	<li>Fixed Cave Johnson&#39;s lines not progressing when playing queued workshop levels.</li>
	<li>Fixed a memory leak that could occur when changing levels.</li>
	<li>Fixed a bug where you could no longer ping/taunt via mouse/keyboard if you have ever used a controller.</li>
	<li>Fixed the ping menu being visible when quick pinging on controller.</li>
	<li>Fixed the game instructor not respecting input types for respective players in split-screen mode.</li>
	<li>Fixed rumble not being respected for respective players in split-screen mode.</li>
	<li>Fixed the wrong avatar being used if playing coop after playing a workshop level.</li>
	<li>Fixed the OnFiredPortal2 output not firing.</li>
	<li>Fixed some text being duplicated on the screen multiple times.</li>
</ul>