Fix "Texture 'RenderWindow DepthBuffer' is TilerMemoryless" for all s…

…amples

OgreMain/src/Compositor/Pass/OgreCompositorPass.cpp

@@ -310,6 +310,21 @@ namespace Ogre
                                    rtv->preferDepthTexture, rtv->depthBufferFormat );
         }
 
+        if( mDefinition->mSkipLoadStoreSemantics )
+        {
+            // Set everything to dont_care since validation must not complain.
+            const size_t numColourEntries = renderPassDesc->getNumColourEntries();
+            for( size_t i = 0u; i < numColourEntries; ++i )
+            {
+                renderPassDesc->mColour[i].loadAction = LoadAction::DontCare;
+                renderPassDesc->mColour[i].storeAction = StoreAction::DontCare;
+            }
+            renderPassDesc->mDepth.loadAction = LoadAction::DontCare;
+            renderPassDesc->mDepth.storeAction = StoreAction::DontCare;
+            renderPassDesc->mStencil.loadAction = LoadAction::DontCare;
+            renderPassDesc->mStencil.storeAction = StoreAction::DontCare;
+        }
+
         postRenderPassDescriptorSetup( renderPassDesc );
 
         try

Samples/2.0/ApiUsage/StereoRendering/StereoRendering.cpp

@@ -105,6 +105,13 @@ namespace Demo
             return mEyeWorkspaces[0];
         }
 
+        void initMiscParamsListener( Ogre::NameValuePairList &params ) override
+        {
+            // This sample specifically REQUIRES the window's depth buffer contents to be preserved
+            // between multiple passes. Therefore we must disable it.
+            params["memoryless_depth_buffer"] = "No";
+        }
+
     public:
         StereoGraphicsSystem( GameState *gameState ) : GraphicsSystem( gameState ) {}
     };

Samples/2.0/Common/src/System/Desktop/UnitTesting.cpp

@@ -692,10 +692,10 @@ namespace Demo
                             img.save( outputFolder + frameIdxStr + "RenderWindow_colour.png", 0u,
                                       texture->getNumMipmaps() );
 
-                            texture = renderWindow->getDepthBuffer();
+                            /*texture = renderWindow->getDepthBuffer();
                             img.convertFromTexture( texture, 0u, texture->getNumMipmaps() - 1u );
                             img.save( outputFolder + frameIdxStr + "RenderWindow_depth.exr", 0u,
-                                      texture->getNumMipmaps() );
+                                      texture->getNumMipmaps() );*/
                         }
 
                         Ogre::StringVector::const_iterator itor =

Samples/Media/2.0/scripts/Compositors/Refractions.compositor

@@ -123,6 +123,11 @@ compositor_node RefractionsRefractionsNode
 		pass render_quad
 		{
 			load { all dont_care }
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
 			material Ogre/Copy/4xFP32
 			input 0 rtt_final
 

Samples/Media/2.0/scripts/Compositors/TutorialSky_Postprocess.compositor

@@ -12,6 +12,11 @@ compositor_node TutorialSky_PostprocessRenderingNode
 				all				clear
 				clear_colour	0.2 0.4 0.6 1
 			}
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
 			overlays	off
 			rq_first	0
 			rq_last		2
@@ -22,6 +27,8 @@ compositor_node TutorialSky_PostprocessRenderingNode
 		//Render sky after opaque stuff (performance optimization)
 		pass render_quad
 		{
+			skip_load_store_semantics true
+
 			quad_normals	camera_direction
 			material SkyPostprocess
 
@@ -31,11 +38,37 @@ compositor_node TutorialSky_PostprocessRenderingNode
 		//Render transparent stuff after sky
 		pass render_scene
 		{
+			skip_load_store_semantics true
+
 			overlays	on
 			rq_first	2
 
 			profiling_id "Transparents"
 		}
+
+
+		// Render overlays.
+		pass render_scene
+		{
+			// We must set depth & stencil to dont_care because the
+			// Window's DepthBuffer is Memoryless by default and Overlays break the pass.
+			load
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+
+			overlays	on
+			rq_first	254
+			rq_last		255
+
+			profiling_id "Overlays"
+		}
 	}
 }
 

Samples/Media/2.0/scripts/Compositors/Tutorial_DynamicCubemap.compositor

@@ -127,18 +127,24 @@ compositor_node Tutorial_DynamicCubemapRenderingNode
 		//Render sky (see TutorialSky_Postprocess)
 		pass render_quad
 		{
-			store
-			{
-				depth			dont_care
-				stencil			dont_care
-			}
+			skip_load_store_semantics true
+
 			quad_normals	camera_direction
 			material SkyPostprocess
+
+			profiling_id "Sky"
 		}
 
 		//Render transparent stuff after sky
 		pass render_scene
 		{
+			// We must set depth & stencil to dont_care because the
+			// Window's DepthBuffer is Memoryless by default and Overlays break the pass.
+			load
+			{
+				depth			dont_care
+				stencil			dont_care
+			}
 			store
 			{
 				depth			dont_care

Samples/Media/2.0/scripts/Compositors/Tutorial_ReconstructPosFromDepth.compositor

@@ -39,7 +39,15 @@ compositor_node Tutorial_ReconstructPosFromDepthNode
 		{
 			load
 			{
-				colour			dont_care
+				colour	dont_care
+				depth	dont_care
+				stencil	dont_care
+			}
+
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
 			}
 
 			material ReconstructPosFromDepth
@@ -50,6 +58,13 @@ compositor_node Tutorial_ReconstructPosFromDepthNode
 
 		pass render_scene
 		{
+			// We must set depth & stencil to dont_care because the
+			// Window's DepthBuffer is Memoryless by default and Overlays break the pass.
+			load
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
 			store
 			{
 				depth	dont_care

Samples/Media/2.0/scripts/Compositors/Tutorial_Terrain.compositor

@@ -4,11 +4,6 @@ compositor_node Tutorial_TerrainRenderingNode
 
 	target rt_renderwindow
 	{
-		pass clear
-		{
-			colour_value 0.2 0.4 0.6 1
-		}
-
 		pass render_scene
 		{
 			load

Samples/Media/2.0/scripts/Compositors/UvBaking.compositor

@@ -116,6 +116,13 @@ compositor_node ShowBakingTextureNode
 
 		pass render_scene
 		{
+			// We must set depth & stencil to dont_care because the
+			// Window's DepthBuffer is Memoryless by default and Overlays break the pass.
+			load
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
 			store
 			{
 				depth	dont_care

Samples/Media/2.0/scripts/materials/Distortion/Distortion.compositor

@@ -62,6 +62,11 @@ compositor_node DistortionNode
 			{
 				all dont_care
 			}
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
 			material Distortion/Quad
 	    	input 0 rt_scene
             input 1 rt_distortion
@@ -71,6 +76,19 @@ compositor_node DistortionNode
 		{
 			lod_update_list	off
 
+			// We must set depth & stencil to dont_care because the
+			// Window's DepthBuffer is Memoryless by default and Overlays break the pass.
+			load
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+
 			//Render Overlays
 			overlays	on
 			rq_first	254

Samples/Media/2.0/scripts/materials/Postprocessing/Postprocessing.compositor

@@ -521,6 +521,11 @@ compositor_node FinalComposition
 		pass render_quad
 	    {
 			load { all dont_care }
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
 			//Ignore the alpha channel
 			material Ogre/Copy/4xFP32
 	    	input 0 rtN
@@ -537,6 +542,19 @@ compositor_node FinalComposition
 
 			// skip_load_store_semantics true
 
+			// We must set depth & stencil to dont_care because the
+			// Window's DepthBuffer is Memoryless by default and Overlays break the pass.
+			load
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+
 			lod_update_list	off
 
 			//Render Overlays

Samples/Media/2.0/scripts/materials/TutorialCompute01_UavTexture/Compute.compositor

@@ -18,21 +18,38 @@ compositor_node TutorialComputeTest01_UavTextureRenderingNode
 
 	target rt_renderwindow
 	{
-		pass clear
-		{
-			colour_value 0.2 0.4 0.6 1
-		}
-
 		//Compositor will issue the appropiate barriers because
 		//it knows testTexture will be used as a texture.
 		pass render_quad
 		{
+			load
+			{
+				all		dont_care
+			}
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+
 			material Ogre/Copy/4xFP32
 			input 0 testTexture
 		}
 
 		pass render_scene
 		{
+			// We must set depth & stencil to dont_care because the
+			// Window's DepthBuffer is Memoryless by default and Overlays break the pass.
+			load
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
 			overlays	on
 		}
 	}

Samples/Media/2.0/scripts/materials/TutorialCompute02_UavBuffer/Compute.compositor

@@ -20,14 +20,19 @@ compositor_node TutorialComputeTest02_UavBufferRenderingNode
 
 	target rt_renderwindow
 	{
-		pass clear
-		{
-			colour_value 0.2 0.4 0.6 1
-		}
-
 		//The bindings made by pass bind_uav PERSIST even after we're out of rt_renderwindow.
 		pass bind_uav
 		{
+			load
+			{
+				all		dont_care
+			}
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+
 			starting_slot 1
 			uav_buffer 0 testBuffer			read
 		}
@@ -36,12 +41,35 @@ compositor_node TutorialComputeTest02_UavBufferRenderingNode
 		//it knows testTexture will be used as a texture.
 		pass render_quad
 		{
+			load
+			{
+				all		dont_care
+			}
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+
 			material DrawFromUavBuffer
 			uses_uav 0 read
 		}
 
 		pass render_scene
 		{
+			// We must set depth & stencil to dont_care because the
+			// Window's DepthBuffer is Memoryless by default and Overlays break the pass.
+			load
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+			store
+			{
+				depth	dont_care
+				stencil	dont_care
+			}
+
 			overlays	on
 		}
 	}