33 lines
993 B
C
33 lines
993 B
C
|
// Copyright 2020 Phyronnaz
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include "CoreMinimal.h"
|
||
|
|
#include "VoxelMinimal.h"
|
||
|
|
|
||
|
|
// Slower when inlining everything
|
||
|
|
#define FN_FORCEINLINE inline
|
||
|
|
#define FN_FORCEINLINE_MATH FORCEINLINE
|
||
|
|
// 5% faster for fractals
|
||
|
|
#define FN_FORCEINLINE_SINGLE FORCEINLINE
|
||
|
|
|
||
|
|
class FVoxelFastNoiseMath
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
static int32 FastFloor(v_flt f);
|
||
|
|
static int32 FastRound(v_flt f);
|
||
|
|
static int32 FastAbs(int32 i);
|
||
|
|
static v_flt FastAbs(v_flt f);
|
||
|
|
static v_flt FastAbsDeriv(v_flt x, v_flt dx);
|
||
|
|
static v_flt Lerp(v_flt a, v_flt b, v_flt t);
|
||
|
|
static v_flt InterpHermiteFunc(v_flt t);
|
||
|
|
static v_flt InterpHermiteFuncDeriv(v_flt t);
|
||
|
|
static v_flt InterpQuinticFunc(v_flt t);
|
||
|
|
static v_flt InterpQuinticFuncDeriv(v_flt t);
|
||
|
|
static v_flt CubicLerp(v_flt a, v_flt b, v_flt c, v_flt d, v_flt t);
|
||
|
|
|
||
|
|
public:
|
||
|
|
static VectorRegister Lerp(VectorRegister a, VectorRegister b, VectorRegister t);
|
||
|
|
static VectorRegister InterpHermiteFunc(VectorRegister t);
|
||
|
|
static VectorRegister InterpQuinticFunc(VectorRegister t);
|
||
|
|
};
|