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The uint->float cast was a hack to support old devices with bad drivers. Now it's interfering with mobile preview in DX12, so time to get rid of these hacks. #jira UE-151332 #rb Arciel.Rekman, Dmitriy.Dyomin #preflight 6282d76dc57a894cf6a0f3b4 [CL 20238182 by robert srinivasiah in ue5-main branch]
55 lines
1.9 KiB
Plaintext
55 lines
1.9 KiB
Plaintext
// Copyright Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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MobileBasePassCommon.ush: Base pass definitions used by both vertex and pixel shader
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=============================================================================*/
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#define FogStruct MobileBasePass.Fog
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#define PlanarReflectionStruct MobileBasePass.PlanarReflection
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#undef NEEDS_LIGHTMAP_COORDINATE
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#define NEEDS_LIGHTMAP_COORDINATE (LQ_TEXTURE_LIGHTMAP)
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#define NEEDS_LIGHTMAP (NEEDS_LIGHTMAP_COORDINATE)
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#ifndef PROJECT_MOBILE_DISABLE_VERTEX_FOG
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#define PROJECT_MOBILE_DISABLE_VERTEX_FOG 0
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#endif
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// Use vertex fogging for translucency and opaque if project does not use per-pixel fog
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// And always use vertex fogging on sky for perf
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#define USE_VERTEX_FOG (!PROJECT_MOBILE_DISABLE_VERTEX_FOG || MATERIAL_IS_SKY || (MATERIAL_ENABLE_TRANSLUCENCY_FOGGING && (MATERIALBLENDING_ANY_TRANSLUCENT || MATERIAL_SHADINGMODEL_SINGLELAYERWATER)))
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#define PACK_INTERPOLANTS (USE_VERTEX_FOG && NUM_VF_PACKED_INTERPOLANTS > 0 && (ES3_1_PROFILE))
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#define LANDSCAPE_BUG_WORKAROUND (IOS && IS_MOBILE_BASEPASS_VERTEX_SHADER && PACK_INTERPOLANTS)
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struct FSharedMobileBasePassInterpolants
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{
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#if USE_VERTEX_FOG && !PACK_INTERPOLANTS
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half4 VertexFog : TEXCOORD7;
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#endif
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float4 PixelPosition : TEXCOORD8; // xyz = world position, w = clip z
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#if USE_WORLD_POSITION_EXCLUDING_SHADER_OFFSETS
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float3 PixelPositionExcludingWPO : TEXCOORD9;
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#endif
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#if USE_GLOBAL_CLIP_PLANE
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float OutClipDistance : SV_ClipDistance;
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#endif
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#if MOBILE_MULTI_VIEW
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nointerpolation uint MultiViewId : VIEW_ID;
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#endif
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// Keep this dummy at the bottom of the structure for the DXC compiler
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// as it currently uses indexing for interpolator naming. Otherwise
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// the VS to PS attribute mapping won't match
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#if LANDSCAPE_BUG_WORKAROUND
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half4 DummyInterp : DUMMY_INTERP;
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#endif
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};
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#define FMobileBasePassInterpolantsVSToPS FSharedMobileBasePassInterpolants
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