Add slang shaders for additional samples

shaders/slang/occlusionquery/mesh.slang

@@ -0,0 +1,67 @@
+/* Copyright (c) 2025, Sascha Willems
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+struct VSInput
+{
+    float3 Pos;
+    float3 Normal;
+    float3 Color;
+};
+
+struct VSOutput
+{
+    float4 Pos : SV_POSITION;
+    float3 Normal;
+    float3 Color;
+    float Visible;
+    float3 ViewVec;
+    float3 LightVec;
+};
+
+struct UBO
+{
+    float4x4 projection;
+    float4x4 view;
+    float4x4 model;
+    float4 color;
+    float4 lightPos;
+    float visible;
+};
+ConstantBuffer<UBO> ubo;
+
+[shader("vertex")]
+VSOutput vertexMain(VSInput input)
+{
+    VSOutput output;
+    output.Color = input.Color * ubo.color.rgb;
+    output.Visible = ubo.visible;
+    float4x4 modelView = mul(ubo.view, ubo.model);
+    output.Pos = mul(ubo.projection, mul(modelView, float4(input.Pos.xyz, 1.0)));
+    float4 pos = mul(ubo.model, float4(input.Pos, 1.0));
+    output.Normal = mul((float3x3)ubo.model, input.Normal);
+    output.LightVec = ubo.lightPos.xyz - pos.xyz;
+    output.ViewVec = -pos.xyz;
+    return output;
+}
+
+[shader("fragment")]
+float4 fragmentMain(VSOutput input)
+{
+	if (input.Visible > 0.0)
+	{
+		float3 N = normalize(input.Normal);
+		float3 L = normalize(input.LightVec);
+		float3 V = normalize(input.ViewVec);
+		float3 R = reflect(-L, N);
+		float3 diffuse = max(dot(N, L), 0.25) * input.Color;
+		float3 specular = pow(max(dot(R, V), 0.0), 8.0) * float3(0.75);
+		return float4(diffuse + specular, 1.0);
+	}
+	else
+	{
+		return float4(float3(0.1, 0.1, 0.1), 1.0);
+	}
+}

shaders/slang/occlusionquery/occluder.slang

@@ -0,0 +1,42 @@
+/* Copyright (c) 2025, Sascha Willems
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+struct VSInput
+{
+    float3 Pos;
+    float3 Normal;
+    float3 Color;
+};
+
+struct VSOutput
+{
+    float4 Pos : SV_POSITION;
+    float3 Color;
+};
+
+struct UBO
+{
+    float4x4 projection;
+    float4x4 view;
+    float4x4 model;
+    float4 color;
+};
+ConstantBuffer<UBO> ubo;
+
+[shader("vertex")]
+VSOutput vertexMain(VSInput input)
+{
+    VSOutput output;
+    output.Color = input.Color * ubo.color.rgb;
+    output.Pos = mul(ubo.projection, mul(ubo.view, mul(ubo.model, float4(input.Pos.xyz, 1.0))));
+    return output;
+}
+
+[shader("fragment")]
+float4 fragmentMain(VSOutput input)
+{
+    return float4(input.Color, 0.5);
+}

shaders/slang/occlusionquery/simple.slang

@@ -0,0 +1,39 @@
+/* Copyright (c) 2025, Sascha Willems
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+struct VSInput
+{
+    float4 Pos;
+    float3 Color;
+};
+
+struct VSOutput
+{
+    float4 Pos : SV_POSITION;
+    float3 Color;
+};
+
+struct UBO
+{
+    float4x4 projection;
+    float4x4 view;
+    float4x4 model;
+};
+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.xyz, 1.0))));
+    return output;
+}
+
+[shader("fragment")]
+float4 fragmentMain()
+{
+    return float4(1.0, 1.0, 1.0, 1.0);
+}