Common.h File Reference

Some common defines used in several places. More...

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Macros
#define	MurmurHash3_32   MurmurHash3_x86_32
	MurmurHash3 for x86 architectures.
#define	B   0x100
	Perlin's B, a power of 2 usually equal to 256.
#define	BM   0xff
	A bit mask, one less than B.
#define	lerp(t, a, b)   (a + t*(b - a))
	Linear interpolation.
#define	s_curve(t)   (t * t * (3.0f - 2.0f*t))
	Cubic spline.
#define	s_curve2(t)   (t * t * t * (10.0f + 3.0f * t * (2.0f*t - 5.0f)))
	Quintic spline.

Detailed Description

Defines that include constants for Perlin's gradient table and functions for linear interpolation, cubic splines, and quintic splines.