feat: add vulkan runtime for window installer

scripts/download-lib.mjs

@@ -96,6 +96,23 @@ async function main() {
     }
   }
 
+  // Download Vulkan Runtime Installer
+    const vulkanRtFilename = 'VulkanRT-X64-1.4.321.0-Installer.exe'
+    const vulkanRtUrl = 'https://sdk.lunarg.com/sdk/download/1.4.321.0/windows/VulkanRT-X64-1.4.321.0-Installer.exe'
+
+    console.log(`Downloading Vulkan Runtime Installer...`)
+    const vulkanRtSavePath = path.join(tempDir, vulkanRtFilename)
+    if (!fs.existsSync(vulkanRtSavePath)) {
+      await download(vulkanRtUrl, vulkanRtSavePath)
+    }
+
+    // copy to tauri resources
+    try {
+      copySync(vulkanRtSavePath, libDir)
+    } catch (err) {
+      // Expect EEXIST error
+    }
+
   console.log('Downloads completed.')
 }
 

src-tauri/tauri.windows.conf.json

@@ -1,7 +1,13 @@
 {
   "bundle": {
     "targets": ["nsis"],
-    "resources": ["resources/pre-install/**/*", "resources/lib/vulkan-1.dll", "resources/lib/vc_redist.x64.exe", "resources/LICENSE"],
+    "resources": [
+      "resources/pre-install/**/*", 
+      "resources/lib/vulkan-1.dll", 
+      "resources/lib/vc_redist.x64.exe",
+      "resources/lib/VulkanRT-X64-1.4.321.0-Installer.exe",
+      "resources/LICENSE"
+    ],
     "externalBin": ["resources/bin/bun", "resources/bin/uv"],
     "windows": {
       "nsis": {

src-tauri/windows/hooks.nsh

@@ -38,6 +38,36 @@
     DetailPrint "Visual C++ Redistributable already installed (version: $0)"
   ${EndIf}
 
+  ; ---- Install Vulkan Runtime if not present ----
+  ; Check if Vulkan Runtime is installed (registry key exists)
+  ReadRegStr $2 HKLM "SOFTWARE\Khronos\Vulkan\InstalledVersions" ""
+  ${If} $2 == ""
+    ReadRegStr $2 HKLM "SOFTWARE\WOW6432Node\Khronos\Vulkan\InstalledVersions" ""
+  ${EndIf}
+
+  ${If} $2 == ""
+    DetailPrint "Vulkan Runtime not found, installing from bundled file..."
+
+    ${If} ${FileExists} "$INSTDIR\resources\lib\VulkanRT-X64-1.4.321.0-Installer.exe"
+      DetailPrint "Installing Vulkan Runtime..."
+      CopyFiles "$INSTDIR\resources\lib\VulkanRT-X64-1.4.321.0-Installer.exe" "$TEMP\VulkanRT-X64-1.4.321.0-Installer.exe"
+      ExecWait '"$TEMP\VulkanRT-X64-1.4.321.0-Installer.exe" /quiet /norestart' $3
+
+      ${If} $3 == 0
+        DetailPrint "Vulkan Runtime installed successfully"
+      ${Else}
+        DetailPrint "Vulkan Runtime installation failed with exit code: $3"
+      ${EndIf}
+
+      Delete "$TEMP\VulkanRT-X64-1.4.321.0-Installer.exe"
+      Delete "$INSTDIR\resources\lib\VulkanRT-X64-1.4.321.0-Installer.exe"
+    ${Else}
+      DetailPrint "Vulkan Runtime installer not found at expected location: $INSTDIR\resources\lib\VulkanRT-X64-1.4.321.0-Installer.exe"
+    ${EndIf}
+  ${Else}
+    DetailPrint "Vulkan Runtime already installed"
+  ${EndIf}
+
   ; ---- Copy LICENSE to install root ----
   ${If} ${FileExists} "$INSTDIR\resources\LICENSE"
     CopyFiles /SILENT "$INSTDIR\resources\LICENSE" "$INSTDIR\LICENSE"