Extend GL Depth Test Overlay

Support shader exported depth by replaying using the capture pixel shader to determine passing pixels via a stencil mask

renderdoc/data/embedded_files.h

@@ -73,5 +73,7 @@ DECLARE_EMBED(glsl_vk_ms2buffer_comp);
 DECLARE_EMBED(glsl_vk_depthms2buffer_comp);
 DECLARE_EMBED(glsl_vk_buffer2ms_comp);
 DECLARE_EMBED(glsl_vk_depthbuf2ms_frag);
+DECLARE_EMBED(glsl_depth_copy_frag);
+DECLARE_EMBED(glsl_depth_copyms_frag);
 
 #undef DECLARE_EMBED

renderdoc/data/glsl/depth_copy.frag

@@ -0,0 +1,41 @@
+/******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020-2023 Baldur Karlsson
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ ******************************************************************************/
+
+#include "glsl_globals.h"
+
+#if defined(VULKAN)
+
+layout(binding = 0) uniform sampler2D srcDepth;
+
+#else
+
+uniform PRECISION sampler2D srcDepth;
+
+#endif
+
+void main()
+{
+  ivec2 srcCoord = ivec2(int(gl_FragCoord.x), int(gl_FragCoord.y));
+  gl_FragDepth = texelFetch(srcDepth, srcCoord, 0).x;
+}

renderdoc/data/glsl/depth_copyms.frag

@@ -0,0 +1,47 @@
+/******************************************************************************
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2020-2023 Baldur Karlsson
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ ******************************************************************************/
+
+#if defined(GLES)
+#extension GL_OES_sample_variables : require
+#elif defined(OPENGL_CORE)
+#extension GL_ARB_sample_shading : require
+#endif
+
+#include "glsl_globals.h"
+
+#if defined(VULKAN)
+
+layout(binding = 0) uniform sampler2DMS srcDepth;
+
+#else
+
+uniform PRECISION sampler2DMS srcDepth;
+
+#endif
+
+void main()
+{
+  ivec2 srcCoord = ivec2(int(gl_FragCoord.x), int(gl_FragCoord.y));
+  gl_FragDepth = texelFetch(srcDepth, srcCoord, gl_SampleID).x;
+}

renderdoc/data/renderdoc.rc

@@ -148,6 +148,8 @@ RESOURCE_glsl_texdisplay_frag          TYPE_EMBED   "glsl/texdisplay.frag"
 RESOURCE_glsl_vktext_vert              TYPE_EMBED   "glsl/vktext.vert"
 RESOURCE_glsl_vktext_frag              TYPE_EMBED   "glsl/vktext.frag"
 RESOURCE_glsl_fixedcol_frag            TYPE_EMBED   "glsl/fixedcol.frag"
+RESOURCE_glsl_depth_copy_frag          TYPE_EMBED   "glsl/depth_copy.frag"
+RESOURCE_glsl_depth_copyms_frag        TYPE_EMBED   "glsl/depth_copyms.frag"
 RESOURCE_glsl_mesh_vert                TYPE_EMBED   "glsl/mesh.vert"
 RESOURCE_glsl_mesh_geom                TYPE_EMBED   "glsl/mesh.geom"
 RESOURCE_glsl_mesh_frag                TYPE_EMBED   "glsl/mesh.frag"

renderdoc/data/resource.h

@@ -66,6 +66,8 @@
 #define RESOURCE_glsl_vk_depthms2buffer_comp         448
 #define RESOURCE_glsl_vk_buffer2ms_comp              449
 #define RESOURCE_glsl_vk_depthbuf2ms_frag		     450
+#define RESOURCE_glsl_depth_copy_frag                451
+#define RESOURCE_glsl_depth_copyms_frag              452
 
 // Next default values for new objects
 //