From a4be800a91949d0920b9fa51a71644d120d67fb6 Mon Sep 17 00:00:00 2001 From: "madmaxoft@gmail.com" Date: Wed, 17 Apr 2013 20:57:05 +0000 Subject: Noise: removed the unused SSE branches and unused interpolation methods. Removed the Noise.inc file. git-svn-id: http://mc-server.googlecode.com/svn/trunk@1391 0a769ca7-a7f5-676a-18bf-c427514a06d6 --- source/Noise.inc | 124 ------------------------------------------------------- 1 file changed, 124 deletions(-) delete mode 100644 source/Noise.inc (limited to 'source/Noise.inc') diff --git a/source/Noise.inc b/source/Noise.inc deleted file mode 100644 index 60fd2f394..000000000 --- a/source/Noise.inc +++ /dev/null @@ -1,124 +0,0 @@ - -#ifndef __C_NOISE_INC__ -#define __C_NOISE_INC__ - -#include - - - - - -/**************** - * Random value generator - **/ - -float cNoise::IntNoise( int a_X ) const -{ - int x = ((a_X*m_Seed)<<13) ^ a_X; - return ( 1.0f - ( (x * (x * x * 15731 + 789221) + 1376312589) & 0x7fffffff) / 1073741824.0f); - // returns a float number in the range of [-1, 1] -} - - - - - -float cNoise::IntNoise2D( int a_X, int a_Y ) const -{ - int n = a_X + a_Y * 57 + m_Seed*57*57; - n = (n<<13) ^ n; - return ( 1.0f - ( (n * (n * n * 15731 + 789221) + 1376312589) & 0x7fffffff) / 1073741824.0f); - // returns a float number in the range of [-1, 1] -} - - - - - -float cNoise::IntNoise3D( int a_X, int a_Y, int a_Z ) const -{ - int n = a_X + a_Y * 57 + a_Z * 57*57 + m_Seed*57*57*57; - n = (n<<13) ^ n; - return ( 1.0f - ( (n * (n * n * 15731 + 789221) + 1376312589) & 0x7fffffff) / 1073741824.0f); - // returns a float number in the range of [-1, 1] -} - - - - - -int cNoise::IntNoise1DInt( int a_X ) const -{ - int x = ((a_X*m_Seed)<<13) ^ a_X; - return ( (x * (x * x * 15731 + 789221) + 1376312589) & 0x7fffffff); -} - - - - - -int cNoise::IntNoise2DInt( int a_X, int a_Y ) const -{ - int n = a_X + a_Y * 57 + m_Seed*57*57; - n = (n<<13) ^ n; - return ( (n * (n * n * 15731 + 789221) + 1376312589) & 0x7fffffff); -} - - - - - -int cNoise::IntNoise3DInt( int a_X, int a_Y, int a_Z ) const -{ - int n = a_X + a_Y * 57 + a_Z * 57*57 + m_Seed*57*57*57; - n = (n<<13) ^ n; - return ( (n * (n * n * 15731 + 789221) + 1376312589) & 0x7fffffff); -} - - - - - -/**************** - * Interpolation functions - **/ - -float cNoise::CubicInterpolate( float a_A, float a_B, float a_C, float a_D, float a_Pct ) -{ - float P = (a_D - a_C) - (a_A - a_B); - float Q = (a_A - a_B) - P; - float R = a_C - a_A; - float S = a_B; - - return ((P * a_Pct + Q) * a_Pct + R) * a_Pct + S; -} - - - - - -float cNoise::CosineInterpolate( float a_A, float a_B, float a_Pct ) -{ - const float ft = a_Pct * 3.1415927f; - const float f = (1.f - cosf(ft)) * 0.5f; - return a_A*(1-f) + a_B*f; -} - - - - - -float cNoise::LinearInterpolate( float a_A, float a_B, float a_Pct ) -{ - return a_A*(1.f-a_Pct) + a_B*a_Pct; -} - - - - - -#endif - - - - -- cgit v1.2.3