78 lines
2.1 KiB
HLSL
78 lines
2.1 KiB
HLSL
// Crest Water System
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// Copyright © 2024 Wave Harmonic. All rights reserved.
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#ifndef d_WaveHarmonic_Crest_Mask
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#define d_WaveHarmonic_Crest_Mask
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#if d_LodInput
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#define d_RequirePositionWS 1
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#endif
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#include "Packages/com.waveharmonic.crest/Runtime/Shaders/Library/Settings.Crest.hlsl"
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#include "Packages/com.waveharmonic.crest/Runtime/Shaders/Library/Macros.hlsl"
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#include "Packages/com.waveharmonic.crest/Runtime/Shaders/Library/Constants.hlsl"
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#include "Packages/com.waveharmonic.crest/Runtime/Shaders/Library/Globals.hlsl"
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#include "Packages/com.waveharmonic.crest/Runtime/Shaders/Library/Helpers.hlsl"
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#include "Packages/com.waveharmonic.crest/Runtime/Shaders/Library/Vertex/Surface.hlsl"
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#include "Packages/com.waveharmonic.crest/Runtime/Shaders/Library/Utility/Depth.hlsl"
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#if (CREST_PORTALS != 0)
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#include "Packages/com.waveharmonic.crest.portals/Runtime/Shaders/Library/Portals.hlsl"
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#endif
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m_CrestNameSpace
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half4 Fragment(const Varyings i_Input, const bool i_FrontFace)
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{
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UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(i_Input);
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#if d_LodInput
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return half4(i_Input._PositionWS.y - g_Crest_WaterCenter.y, 0, 0, 1);
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#endif
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half result = 0.0;
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#if (CREST_PORTALS != 0)
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#if !d_Tunnel
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if (m_CrestPortal)
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{
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Portal::EvaluateMask(i_Input._PositionCS);
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}
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#endif
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#endif
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if (IsUnderWater(i_FrontFace, g_Crest_ForceUnderwater))
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{
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result = CREST_MASK_BELOW_SURFACE;
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}
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else
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{
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result = CREST_MASK_ABOVE_SURFACE;
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}
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#if (CREST_PORTALS != 0)
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#if d_Crest_NegativeVolumePass
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result = Portal::FixMaskForNegativeVolume(result, i_Input._PositionCS.xy);
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#endif
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#if d_Tunnel
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const float2 positionSS = i_Input._PositionCS.xy;
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const float ffz = LOAD_DEPTH_TEXTURE_X(_Crest_PortalFogBeforeTexture, positionSS);
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const float bfz = LOAD_DEPTH_TEXTURE_X(_Crest_PortalFogAfterTexture, positionSS);
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if (ffz <= 0.0 && bfz > 0.0)
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{
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result = CREST_MASK_ABOVE_SURFACE;
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}
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#endif
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#endif
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return (half4)result;
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}
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m_CrestNameSpaceEnd
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m_CrestVertex
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m_CrestFragmentWithFrontFace(half4)
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#endif // d_WaveHarmonic_Crest_Mask
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