Flatkit 추가 및 설정

Assets/FlatKit/Demos/[Demo] Desert/Shaders/DesertCloud.hlsl

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+#ifndef LINE_KIT_DEMOS_DESERT_PILLAR_INCLUDED
+#define LINE_KIT_DEMOS_DESERT_PILLAR_INCLUDED
+
+#include "Noise/ClassicNoise2D.hlsl"
+
+float Hash(float x) {
+    return frac(sin(x)) * 1000;
+}
+
+void CloudAlpha_float(float2 UV, float3 ObjectPositionWS, float3 ObjectScale, float3 PositionWS, out float Alpha) {
+    const float hash = Hash(ObjectPositionWS.x + ObjectPositionWS.z);
+    float noise = 0;
+    const float2 p = (PositionWS.xz + hash) / ObjectScale.xz * _ScaleFactor;
+
+    noise += ClassicNoise(p * _NoiseScale1 * 1.0) * 1.0;
+    noise += ClassicNoise(p * _NoiseScale2 * 2.0) * 0.5;
+
+    // Fade out close to UV edges.
+    const float2 edgeDistances = saturate(abs(UV - 0.5) * 2.0 - 0.5);
+    noise *= saturate(1.0 - length(edgeDistances) / _FadeOutDistance);
+
+    Alpha = noise;
+}
+
+#endif // LINE_KIT_DEMOS_DESERT_PILLAR_INCLUDED