ScalarRegister.h File Reference

#include "CoreTypes.h"
#include "Math/UnrealMathUtility.h"
#include "Math/VectorRegister.h"

Go to the source code of this file.

Macros
#define	ENABLE_VECTORIZED_TRANSFORM   PLATFORM_ENABLE_VECTORINTRINSICS
#define	ScalarRegister   float
#define	ScalarOne   1.0f
#define	ScalarZero   0.0f
#define	ScalarMin   Min
#define	ScalarMax   Max
#define	ScalarReciprocal(A)   (1.0f / (A))
#define	NonZeroAnimWeight(A)   ((A) > ZERO_ANIMWEIGHT_THRESH)
#define	NonOneAnimWeight(A)   ((A) < 1.0f - ZERO_ANIMWEIGHT_THRESH)

Macro Definition Documentation

ENABLE_VECTORIZED_TRANSFORM

#define ENABLE_VECTORIZED_TRANSFORM   PLATFORM_ENABLE_VECTORINTRINSICS

This define controls whether a scalar implementation or vector implementation is used for FTransform. The vector implementation works even when using UnMathFPU, but it will be much slower than the equivalent scalar implementation, so the scalar code is maintained and enabled when vector intrinsics are off.

NonOneAnimWeight

#define NonOneAnimWeight

(

A

)

((A) < 1.0f - ZERO_ANIMWEIGHT_THRESH)

NonZeroAnimWeight

#define NonZeroAnimWeight

(

A

)

((A) > ZERO_ANIMWEIGHT_THRESH)

ScalarMax

#define ScalarMax   Max

ScalarMin

#define ScalarMin   Min

ScalarOne

#define ScalarOne   1.0f

ScalarReciprocal

#define ScalarReciprocal

(

A

)

(1.0f / (A))

ScalarRegister

#define ScalarRegister   float

ScalarZero

#define ScalarZero   0.0f