init

shaders/dynamic_rendering_local_read/hlsl/scene_opaque.frag.hlsl

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+/* Copyright (c) 2025, Sascha Willems
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+struct VSOutput
+{
+    float4 Pos : SV_POSITION;
+    float3 Normal : NORMAL0;
+    float4 Color : COLOR0;
+    float3 WorldPos : POS0;
+};
+
+[[vk::constant_id(0)]] const float NEAR_PLANE = 0.1;
+[[vk::constant_id(1)]] const float FAR_PLANE = 256.0;
+
+float linearDepth(float depth)
+{
+	float z = depth * 2.0f - 1.0f; 
+	return (2.0f * NEAR_PLANE * FAR_PLANE) / (FAR_PLANE + NEAR_PLANE - z * (FAR_PLANE - NEAR_PLANE));	
+}
+
+struct FSOutput
+{
+    float4 Color : SV_TARGET0;
+    float4 PositionDepth : SV_TARGET1;
+    float4 Normal : SV_TARGET2;
+    float4 Albedo : SV_TARGET3;
+};
+
+FSOutput main(VSOutput input)
+{
+    FSOutput output;
+	float3 N = normalize(input.Normal);
+	N.y = -N.y;
+	output.Normal = float4(N, 1.0);
+	output.Albedo = input.Color;
+	// Store linearized depth in alpha component
+    output.PositionDepth.rgb = input.WorldPos;
+    output.PositionDepth.a = linearDepth(input.Pos.z);
+    // Write color attachments to avoid undefined behaviour (validation error)
+    output.Color = (1.0).rrrr;
+	return output;
+}