noise.cpp File Reference

Perlin noise routines for procedural textures, etc. More...

#include "llviewerprecompiledheaders.h"
#include "noise.h"
#include "llrand.h"

Include dependency graph for noise.cpp:

Go to the source code of this file.

Defines

#define B   0x100

Functions

F32 noise2 (F32 *vec)

Variables

S32 p [B+B+2]
F32 g3 [B+B+2][3]
F32 g2 [B+B+2][2]
F32 g1 [B+B+2]
S32 gNoiseStart = 1


Detailed Description

Perlin noise routines for procedural textures, etc.

LicenseInfo
firstyear=2000&license=viewergpl

Copyright (c) 2000-2007, Linden Research, Inc.

Second Life Viewer Source Code The source code in this file ("Source Code") is provided by Linden Lab to you under the terms of the GNU General Public License, version 2.0 ("GPL"), unless you have obtained a separate licensing agreement ("Other License"), formally executed by you and Linden Lab. Terms of the GPL can be found in doc/GPL-license.txt in this distribution, or online at http://secondlife.com/developers/opensource/gplv2

There are special exceptions to the terms and conditions of the GPL as it is applied to this Source Code. View the full text of the exception in the file doc/FLOSS-exception.txt in this software distribution, or online at http://secondlife.com/developers/opensource/flossexception

By copying, modifying or distributing this software, you acknowledge that you have read and understood your obligations described above, and agree to abide by those obligations.

ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, COMPLETENESS OR PERFORMANCE. $/LicenseInfo$

Definition in file noise.cpp.


Define Documentation

#define B   0x100

Definition at line 39 of file noise.cpp.


Function Documentation

F32 noise2 ( F32 vec  ) 

Definition at line 47 of file noise.cpp.

References a, b, fast_at2(), fast_setup(), g2, gNoiseStart, i, init(), j, lerp_m, p, S32, s_curve, u, and v.

Referenced by LLSurfacePatch::eval(), LLVLComposition::generateHeights(), LLBodyNoiseMotion::onUpdate(), and turbulence2().


Variable Documentation

F32 g1[B+B+2]

Definition at line 43 of file noise.cpp.

F32 g2[B+B+2][2]

Definition at line 42 of file noise.cpp.

F32 g3[B+B+2][3]

Definition at line 41 of file noise.cpp.

S32 gNoiseStart = 1

Definition at line 44 of file noise.cpp.

Referenced by noise1(), noise2(), and noise3().

S32 p[B+B+2]

Definition at line 40 of file noise.cpp.


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