1 files changed, 29 insertions, 0 deletions
diff --git a/tools/fetch-slang.sh b/tools/fetch-slang.sh
new file mode 100755
index 0000000..5229bf7
--- /dev/null
+++ b/tools/fetch-slang.sh
@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+#
+# Fetches the Slang shader-compiler toolchain into tools/slang (gitignored).
+# Slang is the single shader-authoring language for Donut; slangc cross-compiles
+# each assets/shaders/*.slang to GLSL (OpenGL), SPIR-V (Vulkan), and MSL (Metal).
+#
+# Re-run to (re)install. Pin the version here so builds are reproducible.
+set -euo pipefail
+
+VERSION="2026.14.1"
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+DEST="$ROOT/tools/slang"
+
+case "$(uname -s)-$(uname -m)" in
+  Darwin-arm64|Darwin-aarch64) ASSET="macos-aarch64" ;;
+  Darwin-x86_64)               ASSET="macos-x86_64" ;;
+  Linux-x86_64)                ASSET="linux-x86_64" ;;
+  Linux-aarch64|Linux-arm64)   ASSET="linux-aarch64" ;;
+  *) echo "fetch-slang: unsupported platform $(uname -s)-$(uname -m)"; exit 1 ;;
+esac
+
+URL="https://github.com/shader-slang/slang/releases/download/v${VERSION}/slang-${VERSION}-${ASSET}.tar.gz"
+
+echo "fetch-slang: downloading Slang ${VERSION} (${ASSET})..."
+rm -rf "$DEST"
+mkdir -p "$DEST"
+curl -fsSL "$URL" | tar -xz -C "$DEST"
+
+"$DEST/bin/slangc" -v >/dev/null 2>&1 && echo "fetch-slang: installed to $DEST (slangc $("$DEST/bin/slangc" -v))"