From 7d49dff0747f69e96ab83a98b97ece96d4268b36 Mon Sep 17 00:00:00 2001
From: anthops <32993852+anthops@users.noreply.github.com>
Date: Wed, 23 Apr 2025 16:32:52 +0000
Subject: [PATCH] fix: prefer webgl for devices with webgpu and no float32-blendable feature flag #1899 (#1933)

---
 quartz/components/scripts/graph.inline.ts |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/quartz/components/scripts/graph.inline.ts b/quartz/components/scripts/graph.inline.ts
index a669b05..87e2958 100644
--- a/quartz/components/scripts/graph.inline.ts
+++ b/quartz/components/scripts/graph.inline.ts
@@ -68,6 +68,15 @@
   stop: () => void
 }
 
+async function determineGraphicsAPI(): Promise<"webgpu" | "webgl"> {
+  const adapter = await navigator.gpu?.requestAdapter().catch(() => null)
+  if (!adapter) {
+    return "webgl"
+  }
+  // Devices with WebGPU but no float32-blendable feature fail to render the graph
+  return adapter.features.has("float32-blendable") ? "webgpu" : "webgl"
+}
+
 async function renderGraph(graph: HTMLElement, fullSlug: FullSlug) {
   const slug = simplifySlug(fullSlug)
   const visited = getVisited()
@@ -349,6 +358,7 @@
   tweens.forEach((tween) => tween.stop())
   tweens.clear()
 
+  const pixiPreference = await determineGraphicsAPI()
   const app = new Application()
   await app.init({
     width,
@@ -357,7 +367,7 @@
     autoStart: false,
     autoDensity: true,
     backgroundAlpha: 0,
-    preference: "webgpu",
+    preference: pixiPreference,
     resolution: window.devicePixelRatio,
     eventMode: "static",
   })

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