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authorTim Angus <tim@ngus.net>2005-12-10 03:08:56 +0000
committerTim Angus <tim@ngus.net>2005-12-10 03:08:56 +0000
commit3b447421efc76ba76fbdae62f893fc6916af5433 (patch)
tree035963614a2e6333b6d38667b5142c2c0e7863c7 /ioq3-r437/src/renderer/tr_noise.c
parent08446c16acbbb9a9d12fccb21e27cfa29d076e77 (diff)
* Well I fucked that up then...
Diffstat (limited to 'ioq3-r437/src/renderer/tr_noise.c')
-rw-r--r--ioq3-r437/src/renderer/tr_noise.c95
1 files changed, 0 insertions, 95 deletions
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;
-}