init

shaders/dynamic_rendering_local_read/glsl/composition.frag

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+#version 450
+/* Copyright (c) 2024-2025, 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.
+ */
+
+layout (input_attachment_index = 0, binding = 0) uniform subpassInput positionDepthAttachment;
+layout (input_attachment_index = 1, binding = 1) uniform subpassInput normalAttachment;
+layout (input_attachment_index = 2, binding = 2) uniform subpassInput albedoAttachment;
+
+layout (location = 0) in vec2 inUV;
+
+layout (location = 0) out vec4 outColor;
+
+struct Light {
+	vec4 position;
+	vec3 color;
+	float radius;
+};
+
+layout(std140, binding = 3) readonly buffer LightsBuffer
+{
+   Light lights[ ];
+};
+
+
+void main() 
+{
+	// Read G-Buffer values from previous sub pass
+	vec3 fragPos = subpassLoad(positionDepthAttachment).rgb;
+	vec3 normal = subpassLoad(normalAttachment).rgb;
+	vec4 albedo = subpassLoad(albedoAttachment);
+
+	#define ambient 0.005
+	
+	// Ambient part
+	vec3 fragcolor  = albedo.rgb * ambient;
+	
+	for(int i = 0; i < lights.length(); ++i)
+	{
+		vec3 L = lights[i].position.xyz - fragPos;
+		float dist = length(L);
+
+		float attenuation = lights[i].radius / (pow(dist, 8.0) + 1.0);
+
+		float NdotL = max(0.0, dot(normalize(normal), normalize(L)));
+		vec3 diffuse = lights[i].color * albedo.rgb * NdotL * attenuation;
+
+		fragcolor += diffuse;
+	}    	
+   
+	outColor = vec4(fragcolor, 1.0);
+}