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Assets/Plugins/WaterCausticsModules/WaterCausticsEffect/ShaderFunctions/Common/WaterCausticsEmissionSync_Common.hlsl

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+// WaterCausticsModules
+// Copyright (c) 2021 Masataka Hakozaki
+
+#ifndef WCECF_SYNC_COMMON_INCLUDED
+#define WCECF_SYNC_COMMON_INCLUDED
+
+#include "../../Effect/Shaders/WaterCausticsEffectCommon.hlsl"
+
+CBUFFER_START(_WCECF_)
+    float _WCECF_Density;
+    int3 _WCECF_TexChannels;
+    float2 _WCECF_TexRotateSinCos;
+    int _WCECF_TilingSeed;
+    float _WCECF_TilingRot;
+    float _WCECF_TilingHard;
+    float _WCECF_SurfaceY;
+    float _WCECF_SurfFadeStart;
+    float _WCECF_SurfFadeCoef;
+    float _WCECF_DepthFadeStart;
+    float _WCECF_DepthFadeCoef;
+    float _WCECF_DistanceFadeStart;
+    float _WCECF_DistanceFadeCoef;
+    half _WCECF_IntensityMainLit;
+    half _WCECF_IntensityAddLit;
+    float2 _WCECF_ColorShift;
+    half _WCECF_LitSaturation;
+    half _WCECF_MultiplyIntensity;
+    half _WCECF_NormalAtten;
+    half _WCECF_NormalAttenRate;
+    half _WCECF_TransparentBack;
+    half _WCECF_BacksideShadow;
+    half _WCECF_ShadowIntensity;
+    int _WCECF_ClipOutside;
+    int _WCECF_UseImageMask;
+    float4x4 _WCECF_WorldToObjMatrix;
+CBUFFER_END
+
+#if defined(WCE_USE_SAMPLER2D_INSTEAD_TEXTURE2D)
+    sampler2D _WCECF_CausticsTex;
+    sampler2D _WCECF_ImageMaskTex;
+    #define WCE_TEX_PARAMS_RAW(texName) texName
+    #define WCE_TEX_SAMPLE_RAW(texName, uv) tex2D(texName, uv)
+#else
+    TEXTURE2D(_WCECF_CausticsTex);
+    TEXTURE2D(_WCECF_ImageMaskTex);
+    SAMPLER(sampler_WCECF_CausticsTex);
+    SAMPLER(sampler_WCECF_ImageMaskTex);
+    #define WCE_TEX_PARAMS_RAW(texName) texName, sampler##texName
+    #define WCE_TEX_SAMPLE_RAW(texName, uv) texName.Sample(sampler##texName, (uv))
+#endif
+
+
+half3 WCECF_syncCore(float3 WorldPos, half3 NormalWS, float2 ScreenUV, half3 BaseColor, half aten) {
+    half3 c = WCE_EffectCore(WorldPos, NormalWS, ScreenUV, WCE_TEX_PARAMS_RAW(_WCECF_CausticsTex), _WCECF_TexRotateSinCos, _WCECF_TexChannels, _WCECF_TilingSeed, _WCECF_TilingRot, _WCECF_TilingHard, _WCECF_Density, _WCECF_SurfaceY, _WCECF_SurfFadeStart, _WCECF_SurfFadeCoef, _WCECF_DepthFadeStart, _WCECF_DepthFadeCoef, _WCECF_IntensityMainLit * aten, _WCECF_IntensityAddLit * aten, _WCECF_ShadowIntensity, _WCECF_ColorShift, _WCECF_LitSaturation, _WCECF_NormalAtten, _WCECF_NormalAttenRate, _WCECF_TransparentBack, _WCECF_BacksideShadow);
+
+    c *= 1 - (1 - BaseColor) * _WCECF_MultiplyIntensity;
+    return c;
+}
+
+
+half3 WCECF_SyncCommon(float3 WorldPos, half3 NormalWS, float2 ScreenUV, half3 BaseColor) {
+    #if defined(_WCE_DISABLED)
+        return half3(0, 0, 0);
+    #elif defined(SHADERGRAPH_PREVIEW)
+        return WCECF_syncCore(WorldPos, NormalWS, ScreenUV, BaseColor, 1);
+    #else
+        float atten = 1;
+        const float ATTEN_TH = 0.001;
+        // Distance Fade
+        float3 viewDir = WorldPos - _WorldSpaceCameraPos; // ←ifに入れるとVR SinglePassでエラー
+        [branch] if (_WCECF_DistanceFadeCoef > 0.0001) {
+            atten *= smoothstep(0, 1, 1 - (length(viewDir) - _WCECF_DistanceFadeStart) * _WCECF_DistanceFadeCoef);
+        }
+        // Volume & Image Mask
+        [branch] if (atten > ATTEN_TH && (_WCECF_ClipOutside != 0 || _WCECF_UseImageMask != 0)) {
+            float3 posES = mul(_WCECF_WorldToObjMatrix, float4(WorldPos, 1)).xyz;
+            [branch] if (atten > ATTEN_TH && _WCECF_ClipOutside != 0 && (abs(posES.x) > 0.5 || abs(posES.y) > 0.5 || abs(posES.z) > 0.5)) {
+                atten = 0;
+            }
+            [branch] if (atten > ATTEN_TH && _WCECF_UseImageMask != 0) {
+                atten *= WCE_TEX_SAMPLE_RAW(_WCECF_ImageMaskTex, posES.xz + 0.5).r;
+            }
+        }
+        [branch] if (atten > ATTEN_TH) {
+            return WCECF_syncCore(WorldPos, NormalWS, ScreenUV, BaseColor, atten);
+        } else {
+            return half3(0, 0, 0);
+        }
+    #endif
+}
+
+// for ShaderGraph
+void WCECF_SyncForShaderGraph_float(float3 WorldPos, half3 NormalWS, float2 ScreenUV, half3 BaseColor, out half3 EmissionColor) {
+    EmissionColor = WCECF_SyncCommon(WorldPos, NormalWS, ScreenUV, BaseColor);
+}
+
+#endif
+

Assets/Plugins/WaterCausticsModules/WaterCausticsEffect/ShaderFunctions/Common/WaterCausticsEmissionSync_Common.hlsl.meta

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