Added slang shaders for additional compute samples

shaders/slang/computeshader/emboss.slang

@@ -0,0 +1,34 @@
+/* Copyright (c) 2025, Sascha Willems
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+import shared;
+
+[shader("compute")]
+[numthreads(16, 16, 1)]
+void computeMain(uint3 GlobalInvocationID : SV_DispatchThreadID)
+{
+	float imageData[9];
+	// Fetch neighbouring texels
+	int n = -1;
+	for (int i=-1; i<2; ++i)
+	{
+		for(int j=-1; j<2; ++j)
+		{
+			n++;
+			float3 rgb = inputImage[uint2(GlobalInvocationID.x + i, GlobalInvocationID.y + j)].rgb;
+			imageData[n] = (rgb.r + rgb.g + rgb.b) / 3.0;
+		}
+	}
+
+	float kernel[9];
+	kernel[0] = -1.0; kernel[1] =  0.0; kernel[2] =  0.0;
+	kernel[3] = 0.0; kernel[4] = -1.0; kernel[5] =  0.0;
+	kernel[6] = 0.0; kernel[7] =  0.0; kernel[8] = 2.0;
+
+	float4 res = float4(conv(kernel, imageData, 1.0, 0.50).xxx, 1.0);
+
+	resultImage[int2(GlobalInvocationID.xy)] = res;
+}