init

shaders/dynamic_rendering_local_read/glsl/scene_transparent.frag

@@ -0,0 +1,53 @@
+#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.
+ */
+
+// Should be zero, also rename in other shader
+layout (input_attachment_index = 0, binding = 0) uniform subpassInput positionDepthAttachment;
+
+layout (binding = 2) uniform sampler2D samplerTexture;
+
+layout (location = 0) in vec4 inColor;
+layout (location = 1) in vec2 inUV;
+
+layout (location = 0) out vec4 outColor;
+
+layout (constant_id = 0) const float NEAR_PLANE = 0.1f;
+layout (constant_id = 1) const float FAR_PLANE = 256.0f;
+
+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));	
+}
+
+void main () 
+{
+	// Sample depth from deferred depth buffer and discard if obscured
+	float depth = subpassLoad(positionDepthAttachment).a;
+
+	// Save the sampled texture color before discarding.
+	// This is to avoid implicit derivatives in non-uniform control flow.
+	// @todo: reversed depth
+	vec4 sampledColor = texture(samplerTexture, inUV);
+	if ((depth != 0.0) && (linearDepth(gl_FragCoord.z) < depth))
+	{
+//		discard;
+	};
+
+	outColor = sampledColor;
+}