From 3b447421efc76ba76fbdae62f893fc6916af5433 Mon Sep 17 00:00:00 2001 From: Tim Angus Date: Sat, 10 Dec 2005 03:08:56 +0000 Subject: * Well I fucked that up then... --- ioq3-r437/src/renderer/tr_noise.c | 95 --------------------------------------- 1 file changed, 95 deletions(-) delete mode 100644 ioq3-r437/src/renderer/tr_noise.c (limited to 'ioq3-r437/src/renderer/tr_noise.c') diff --git a/ioq3-r437/src/renderer/tr_noise.c b/ioq3-r437/src/renderer/tr_noise.c deleted file mode 100644 index 5d550a3f..00000000 --- a/ioq3-r437/src/renderer/tr_noise.c +++ /dev/null @@ -1,95 +0,0 @@ -/* -=========================================================================== -Copyright (C) 1999-2005 Id Software, Inc. - -This file is part of Quake III Arena source code. - -Quake III Arena source code is free software; you can redistribute it -and/or modify it under the terms of the GNU General Public License as -published by the Free Software Foundation; either version 2 of the License, -or (at your option) any later version. - -Quake III Arena source code is distributed in the hope that it will be -useful, but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with Quake III Arena source code; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -=========================================================================== -*/ -// tr_noise.c -#include "tr_local.h" - -#define NOISE_SIZE 256 -#define NOISE_MASK ( NOISE_SIZE - 1 ) - -#define VAL( a ) s_noise_perm[ ( a ) & ( NOISE_MASK )] -#define INDEX( x, y, z, t ) VAL( x + VAL( y + VAL( z + VAL( t ) ) ) ) - -static float s_noise_table[NOISE_SIZE]; -static int s_noise_perm[NOISE_SIZE]; - -#define LERP( a, b, w ) ( a * ( 1.0f - w ) + b * w ) - -static float GetNoiseValue( int x, int y, int z, int t ) -{ - int index = INDEX( ( int ) x, ( int ) y, ( int ) z, ( int ) t ); - - return s_noise_table[index]; -} - -void R_NoiseInit( void ) -{ - int i; - - srand( 1001 ); - - for ( i = 0; i < NOISE_SIZE; i++ ) - { - s_noise_table[i] = ( float ) ( ( ( rand() / ( float ) RAND_MAX ) * 2.0 - 1.0 ) ); - s_noise_perm[i] = ( unsigned char ) ( rand() / ( float ) RAND_MAX * 255 ); - } -} - -float R_NoiseGet4f( float x, float y, float z, float t ) -{ - int i; - int ix, iy, iz, it; - float fx, fy, fz, ft; - float front[4]; - float back[4]; - float fvalue, bvalue, value[2], finalvalue; - - ix = ( int ) floor( x ); - fx = x - ix; - iy = ( int ) floor( y ); - fy = y - iy; - iz = ( int ) floor( z ); - fz = z - iz; - it = ( int ) floor( t ); - ft = t - it; - - for ( i = 0; i < 2; i++ ) - { - front[0] = GetNoiseValue( ix, iy, iz, it + i ); - front[1] = GetNoiseValue( ix+1, iy, iz, it + i ); - front[2] = GetNoiseValue( ix, iy+1, iz, it + i ); - front[3] = GetNoiseValue( ix+1, iy+1, iz, it + i ); - - back[0] = GetNoiseValue( ix, iy, iz + 1, it + i ); - back[1] = GetNoiseValue( ix+1, iy, iz + 1, it + i ); - back[2] = GetNoiseValue( ix, iy+1, iz + 1, it + i ); - back[3] = GetNoiseValue( ix+1, iy+1, iz + 1, it + i ); - - fvalue = LERP( LERP( front[0], front[1], fx ), LERP( front[2], front[3], fx ), fy ); - bvalue = LERP( LERP( back[0], back[1], fx ), LERP( back[2], back[3], fx ), fy ); - - value[i] = LERP( fvalue, bvalue, fz ); - } - - finalvalue = LERP( value[0], value[1], ft ); - - return finalvalue; -} -- cgit