From c1200518140338d3784fe73331a277e97bb73aff Mon Sep 17 00:00:00 2001
From: Sascha Willems <webmaster@saschawillems.de>
Date: Sat, 29 Mar 2025 13:22:09 +0100
Subject: [PATCH] Slang shaders for descriptor indexing sample

---
 .../descriptorindexing.slang                  | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 shaders/slang/descriptorindexing/descriptorindexing.slang

diff --git a/shaders/slang/descriptorindexing/descriptorindexing.slang b/shaders/slang/descriptorindexing/descriptorindexing.slang
new file mode 100644
index 00000000..c647a2cd
--- /dev/null
+++ b/shaders/slang/descriptorindexing/descriptorindexing.slang
@@ -0,0 +1,43 @@
+/* Copyright (c) 2025, Sascha Willems
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+struct VSInput
+{
+	float3 Pos : POSITION0;
+	float2 UV;
+	int TextureIndex;
+};
+
+struct Matrices {
+	float4x4 projection;
+	float4x4 view;
+	float4x4 model;
+};
+ConstantBuffer<Matrices> matrices;
+Sampler2D textures[];
+
+struct VSOutput
+{
+	float4 Pos : SV_POSITION;
+	int TextureIndex;
+	float2 UV;
+};
+
+[shader("vertex")]
+VSOutput vertexMain(VSInput input)
+{
+	VSOutput output;
+	output.UV = input.UV;
+	output.TextureIndex = input.TextureIndex;
+	output.Pos = mul(matrices.projection, mul(matrices.view, mul(matrices.model, float4(input.Pos.xyz, 1.0))));
+	return output;
+}
+
+[shader("fragment")]
+float4 fragmentMain(VSOutput input) : SV_TARGET
+{
+    return textures[NonUniformResourceIndex(input.TextureIndex)].Sample(input.UV);
+}
\ No newline at end of file