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090b64dcc2
- Support keeping pages that are not requested in a given frame, disabled to start but will be enabled soon. r.Shadow.Virtual.Cache.KeepOnlyRequestedPages - Support LRU allocation of new pages. Only particularly meaningful with persistent allocations. Also disabled to start. r.Shadow.Virtual.Cache.AllocateViaLRU - Lots of cleanup and refactoring of page allocation passes and shaders. - Move page marking shaders into their own file as they are relatively independent from the allocation/caching and have dependencies on other systems (hair, water, etc) - Clean up various cases of cache enabled/available/etc. - Some minor cleanup of invalidations in prep for future work #rb ola.olsson #jira UE-147454 #preflight 642cad58da7f9583709d3172 [CL 24932187 by andrew lauritzen in ue5-main branch]
64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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/*================================================================================================
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VirtualShadowMapDefinitions.h: used in virtual shadow map shaders and C++ code to define common constants
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!!! Changing this file requires recompilation of the engine !!!
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=================================================================================================*/
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#pragma once
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_NONE 0
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_SHADOW_FACTOR (1 << 0)
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_CLIPMAP_OR_MIP (1 << 1)
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_VIRTUAL_PAGE (1 << 2)
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_CACHED_PAGE (1 << 3)
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_SMRT_RAY_COUNT (1 << 4)
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_CLIPMAP_VIRTUAL_SPACE (1 << 5)
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_GENERAL_DEBUG (1 << 6)
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_DIRTY_PAGE (1 << 7)
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_GPU_INVALIDATED_PAGE (1 << 8)
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#define VIRTUAL_SHADOW_MAP_VISUALIZE_MERGED_PAGE (1 << 9)
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#define VSM_PROJ_FLAG_CURRENT_DISTANT_LIGHT (1U << 0)
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#define VSM_PROJ_FLAG_UNCACHED (1U << 1) // Used to indicate that the light is uncached and should only render to dynamic pages
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// Hard limit for max distant lights supported 8k for now - we may revise later. We need to keep them in a fixed range for now to make allocation easy and minimize overhead for indexing.
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#define VSM_MAX_SINGLE_PAGE_SHADOW_MAPS (1024U * 8U)
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#ifdef __cplusplus
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#include "HLSLTypeAliases.h"
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namespace UE::HLSL
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{
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#endif
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struct FVSMVisibleInstanceCmd
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{
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uint PackedPageInfo;
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uint InstanceIdAndFlags;
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uint IndirectArgIndex;
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};
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struct FVSMCullingBatchInfo
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{
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uint FirstPrimaryView;
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uint NumPrimaryViews;
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uint PrimitiveRevealedOffset;
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uint PrimitiveRevealedNum;
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};
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struct FNextVirtualShadowMapData
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{
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int NextVirtualShadowMapId;
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int2 PageAddressOffset;
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int _Padding;
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};
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#ifdef __cplusplus
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} // namespace UE::HLSL
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using FVSMVisibleInstanceCmd = UE::HLSL::FVSMVisibleInstanceCmd;
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using FVSMCullingBatchInfo = UE::HLSL::FVSMCullingBatchInfo;
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using FNextVirtualShadowMapData = UE::HLSL::FNextVirtualShadowMapData;
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#endif |