更新

Assets/OtherPlugins/GraphicsCat/Modules/LitPlus/Shaders/Includes/Utils/MathUtils.hlsl

@@ -0,0 +1,25 @@
+#pragma once
+
+// PowX uses the same amount of instructions as generic pow(), but has 2 advantages:
+// 1) better instruction pipelining
+// 2) no need to worry about NaNs
+
+half SafePow3(half val)
+{
+    return val * val * val;;
+}
+
+half SafePow4(half val)
+{
+    half val2 = val * val;
+    return val2 * val2;
+}
+
+half SafePow5(half val)
+{
+    half val2 = val * val;
+    return val2 * val2 * val;
+}
+
+half LumByMax(half3 col) { return max(max(col.x, col.y), col.z); }
+half LumByDot(half3 col) { return dot(col, half3(0.3, 0.6, 0.1)); }