RJJ AcidEtchBump Texture 
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What are RJJ Textures RJJ Textures are a set of procedural textures for use with Impulse's ray tracer, Imagine for Windows. They are a set of colour and bump textures that share a common set of user definable parameters. In addition, they all inter-relate so that bump colours can be modified by other RJJ textures and material maps can be generated to blend other RJJ textures together.

RJJ AcidEtchBump Examples Here's just few textures RJJ AcidEtchBump can generate....

rjacidb example rjacidb example rjacidb example rjacidb example rjacidb example rjacidb example rjacidb example
Ceiling Tile Alien Skin Kinda Cork
Uses rjbozo
Wood Grain Eroded Away
Uses rjbozo
Crumbly Cheese Well Battered

RJJ AcidEtchBump This texture provides acid etch type bumps. That is, the kind of bumps caused when acid eats part of the material away. The overall scale of the texture is determined by the texture axes.

Bump Height The bump height can be controlled to give bumps or dents.
Clipping The top and bottom of the bumps can be clipped to give flat plateaus and plains.
Turbulence Turbulence can be added with the size, period, noise and number of octaves all being controllable.
Material Maps Any texture can be used to control the application of other textures. These can be any of the RJJ colour or bump textures.
Scale Maps Any colour texture can be used to control the scale of the bump texture applied.
Octaves The "jaggedness" of the dents can be controlled by changing the number of octaves.
Dispersion The density of the bumps is fully controllable.