NOISE(3G) | [FIXME: manual] | NOISE(3G) |
NAME
noise - generate values with a pseudo-random noise function
DECLARATION
float noise1(genType x);
vec2 noise2(genType x);
vec3 noise3(genType x);
vec4 noise4(genType x);
PARAMETERS
x
DESCRIPTION
noise1, noise2, noise3 and noise4 return noise values (vector or scalar) based on the input value x. The noise function is a stochastic function that can be used to increase visual complexity. Values returned by the noise functions give the appearance of randomness, but are not truly random. They are defined to have the following characteristics:
VERSION SUPPORT
OpenGL Shading Language Version | ||||||||||||
Function Name | 1.10 | 1.20 | 1.30 | 1.40 | 1.50 | 3.30 | 4.00 | 4.10 | 4.20 | 4.30 | 4.40 | 4.50 |
noise1 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
noise2 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
noise3 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
noise4 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
COPYRIGHT
Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. https://opencontent.org/openpub/.
COPYRIGHT
Copyright © 2011-2014 Khronos Group
10/20/2024 | [FIXME: source] |