Whitenoise Procedural Textures

The whitenoise procedural texture generates random greyscale noise every frame. The effect is similar to static on your television.

ATD1
type   = whitenoise
width  = integer
height = integer

Parameters

width

Width of the texture, must be a power of two.

height

Height of the texture, must be a power of two.

Remarks

The whitenoise algorithm fills a greyscale 8-bit texture with random bits. If requested, a color version of this can be implemented as well. Note that this texture will probably not tile very well. In addition, if you have multiple occurences of this texture in the same room, they will all display exactly the same static at exactly the same time. You can get around this by using different offsets and scale factors in the texture to make each one look a little different. This is better than making separate texture definition files, unless you are using very small texture sizes.

Advanced OpenGL parameters

internal format

GL_LUMINANCE (8-bit greyscale)

GL_TEXTURE_MIN_FILTER

GL_NEAREST (no mipmapping or interpolation)

GL_TEXTURE_MAG_FILTER

GL_NEAREST (no interpolation)

Example

type   = whitenoise
width  = 64
height = 64

Will generate a texture like this: