修改水

Packages/com.waveharmonic.crest/Runtime/Shaders/Library/Flow.hlsl

@@ -0,0 +1,48 @@
+// Crest Water System
+// Copyright © 2024 Wave Harmonic. All rights reserved.
+
+#ifndef CREST_FLOW_INCLUDED
+#define CREST_FLOW_INCLUDED
+
+#include "Packages/com.waveharmonic.crest/Runtime/Shaders/Library/Macros.hlsl"
+
+m_CrestNameSpace
+
+struct Flow
+{
+    float _Offset0;
+    float _Weight0;
+    float _Offset1;
+    float _Weight1;
+    float _Period;
+    half2 _Flow;
+
+    static Flow Make
+    (
+        const half2 i_Flow,
+        const float i_Time,
+        const float i_Period = 1.0
+    )
+    {
+        const float Period = i_Period;
+        const float HalfPeriod = Period * 0.5;
+        const float Offset0 = fmod(i_Time, Period);
+        float Weight0 = Offset0 / HalfPeriod;
+        if (Weight0 > 1.0) Weight0 = 2.0 - Weight0;
+        const float Offset1 = fmod(i_Time + HalfPeriod, Period);
+        const float Weight1 = 1.0 - Weight0;
+
+        Flow flow;
+        flow._Offset0 = Offset0;
+        flow._Weight0 = Weight0;
+        flow._Offset1 = Offset1;
+        flow._Weight1 = Weight1;
+        flow._Period = Period;
+        flow._Flow = i_Flow;
+        return flow;
+    }
+};
+
+m_CrestNameSpaceEnd
+
+#endif // CREST_FLOW_INCLUDED