Add slang shaders for additional samples

shaders/slang/inputattachments/attachmentwrite.slang

@@ -0,0 +1,56 @@
+/* Copyright (c) 2025, Sascha Willems
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+struct VSInput
+{
+    float3 Pos;
+    float3 Color;
+    float3 Normal;
+};
+
+struct VSOutput
+{
+    float4 Pos : SV_POSITION;
+    float3 Color;
+    float3 Normal;
+    float3 ViewVec;
+    float3 LightVec;
+};
+
+struct UBO {
+    float4x4 projection;
+    float4x4 model;
+    float4x4 view;
+};
+ConstantBuffer<UBO> ubo;
+
+[shader("vertex")]
+VSOutput vertexMain(VSInput input)
+{
+    VSOutput output;
+    output.Pos = mul(ubo.projection, mul(ubo.view, mul(ubo.model, float4(input.Pos, 1.0))));
+    output.Color = input.Color;
+    output.Normal = input.Normal;
+    output.LightVec = float3(0.0f, 5.0f, 15.0f) - input.Pos;
+    output.ViewVec = -input.Pos.xyz;
+    return output;
+}
+
+[shader("fragment")]
+float4 fragmentMain(VSOutput input)
+{
+	// Toon shading color attachment output
+	float intensity = dot(normalize(input.Normal), normalize(input.LightVec));
+	float shade = 1.0;
+	shade = intensity < 0.5 ? 0.75 : shade;
+	shade = intensity < 0.35 ? 0.6 : shade;
+	shade = intensity < 0.25 ? 0.5 : shade;
+	shade = intensity < 0.1 ? 0.25 : shade;
+
+	return float4(input.Color * 3.0 * shade, 1.0);
+
+	// Depth attachment does not need to be explicitly written
+}