Added slang shaders for ssao sample

shaders/slang/ssao/gbuffer.slang

@@ -0,0 +1,73 @@
+/* Copyright (c) 2025, Sascha Willems
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+struct VSInput
+{
+    float4 Pos;
+    float2 UV;
+    float3 Color;
+    float3 Normal;
+};
+
+struct VSOutput
+{
+    float4 Pos : SV_POSITION;
+    float3 Normal;
+    float2 UV;
+    float3 Color;
+    float3 WorldPos;
+};
+
+struct FSOutput
+{
+    float4 Position : SV_TARGET0;
+    float4 Normal : SV_TARGET1;
+    float4 Albedo : SV_TARGET2;
+};
+
+struct UBO
+{
+    float4x4 projection;
+    float4x4 model;
+    float4x4 view;
+    float nearPlane;
+    float farPlane;
+};
+ConstantBuffer<UBO> ubo;
+
+[[vk::binding(0, 1)]] Texture2D textureColorMap;
+[[vk::binding(0, 1)]] SamplerState samplerColorMap;
+
+[shader("vertex")]
+VSOutput vertexMain(VSInput input)
+{
+    VSOutput output;
+    output.Pos = mul(ubo.projection, mul(ubo.view, mul(ubo.model, input.Pos)));
+    output.UV = input.UV;
+    // Vertex position in view space
+    output.WorldPos = mul(ubo.view, mul(ubo.model, input.Pos)).xyz;
+    // Normal in view space
+    float3x3 normalMatrix = (float3x3)mul(ubo.view, ubo.model);
+    output.Normal = mul(normalMatrix, input.Normal);
+    output.Color = input.Color;
+    return output;
+}
+
+float linearDepth(float depth)
+{
+	float z = depth * 2.0f - 1.0f;
+	return (2.0f * ubo.nearPlane * ubo.farPlane) / (ubo.farPlane + ubo.nearPlane - z * (ubo.farPlane - ubo.nearPlane));
+}
+
+[shader("fragment")]
+FSOutput fragmentMain(VSOutput input)
+{
+	FSOutput output;
+	output.Position = float4(input.WorldPos, linearDepth(input.Pos.z));
+	output.Normal = float4(normalize(input.Normal) * 0.5 + 0.5, 1.0);
+	output.Albedo = textureColorMap.Sample(samplerColorMap, input.UV) * float4(input.Color, 1.0);
+	return output;
+}