The Maxon Noise shader brings native support of the Cinema 4D procedural noises to all Redshift DCCs. These are very useful for adding surface detail, special effects and driving bump-maps.
For C4D users, the main benefit is that C4D noises are no longer constrained to 2D textures, and can be mapped in Object or World coordinates for more shading possibilities. Another benefit is that in most cases editing parameters will no longer trigger bakeing and slow texture conversions. Note that the existing C4D Shader node will continue to work in bake mode, so that existing materials will render the same as before.
Please be aware that the algorithms used in the Maxon Noise node are based on a customized GPU-friendly implementation instead of the CPU-based code used by the original C4D shader. For this reason while the noises and most of the parameters are the same, their output will not be pixel-identical to the original C4D version.
Adding noise to Global Fog
Noise can be added to a global fog volume by connecting a noise shader to the Volume input of a Material Output node and applying that material directly to the RS Environment object as pictured below.
Volume Fog with Maxon Noise
3 noises blended with a Color Layer
Volume Fog without Noise
Applying volume noise to global fog
Parameters
General
Color 1
Controls the color that is output where the computed noise is not present.
Color 2
Controls the color that is output where the computed noise is present. Where noise is partially present, the output will be a blend between Color 1 and Color 2.
Seed
This creates a unique random noise pattern, changing this number makes it easy to use the same noise setup while achieving different results.
Type
Controls which noise generator is used from the following options:
Box Noise
Blistered Turbulence
Buya
Cell Noise
Cranal
Dents
Displaced Turbulence
FBM
Hama
Luka
Mod Noise
Naki
Noise
Nutous
Ober
Pezo
Poxo
Sema
Stupl
Turbulence
VL Noise
Wavy Turbulence
Cell Voronoi
Displaced Voronoi
Sparse Convolution
Voronoi 1
Voronoi 2
Voronoi 3
Zada
Fire
Electric
Gaseous
Ridged Multi Fractal
Octaves
Controls the number of layers the noise pattern generates, in general higher values increase the amount of detail in the noise pattern.
Lacunarity
The number of octaves must be greater than 1 for this parameter to take effect.
Only compatible with Buya, FBM, Ober, Displaced Voronoi, Zada, and Ridged Multi Fractal noise types.
Controls the scale of the noise pattern for each succeeding octave, in general this affects the amount of detail added per octave. Values above 1 result in smaller noise scales per octave while values below 1 result in larger noise scales per octave. A lacunarity value of 1 results in a noise pattern scale that is the same scale as the first octave, values closer to 1 tend to result in less differentiation per octave.
Gain
The number of octaves must be greater than 1 for this parameter to take effect.
Only compatible with Buya, FBM, Ober, Displaced Voronoi, Zada, and Ridged Multi Fractal noise types.
Controls the brightness of each octave.
Exponent
The number of octaves must be greater than 1 for this parameter to take effect.
Only compatible with Displaced Voronoi and Voronoi 1, 2, and 3 noise types.
Controls the general shape and appearance of the voronoi cells.
Absolute
When enabled, the value of the noise becomes absolute which causes the noise to fold about its midpoint.
Animation
Box Noise
Blistered Turbulence
Buya
Cell Noise
Cranal
Dents
Displaced Turbulence
FBM
Hama
Luka
Mod Noise
Naki
Noise
Nutous
Ober
Pezo
Poxo
Sema
Stupl
Turbulence
VL Noise
Wavy Turbulence
Cell Voronoi
Displaced Voronoi
Sparse Convolution
Voronoi 1
Voronoi 2
Voronoi 3
Zada
Fire
Electric
Gaseous
Ridged Multi Fractal
Speed
Controls how fast the noise animates in cycles per second.
Loop Period
Not compatible with Electric, Gaseous, and Wavy Turbulence noise types.
The Legacy parameter "Time Behavior" must be disabled in order for looping to work - be certain to disable it when adding looping noises to scenes created before Redshift version 3.5.15.
Controls how often an animated noise loops in seconds. For example, if 0.5 is entered the noise loops every 0.5 seconds which would be either every 15 frames in a 30 FPS project or every 30 frames in a 60 FPS project.
Time Source
Controls what source is used to determine the noise animation's time frame from the following options:
Global (default): Uses the project's frames per second setting as the time source for noise animation.
Custom: Uses the Custom Time parameter as the time source for noise animation.
Input
Source
Controls how the noise pattern is projected onto the surface from the following options:
UV / Vertex Attribute : Uses the UV coordinates to control the location of the noise. Discontinuity will be visible in the noise along seams in the UVs.
Object : Uses the object-space coordinates that are being shaded. This option undoes the world transform to lock the coordinates to the local object space, resulting in no texture projection swimming when the object moves or is instanced.
World : Uses the world-space coordinates that are being shaded. This option will result in texture projection 'swimming' if the object moves or is instanced.
Vertex Attribute Name
Defines which UV Set is used when the Source parameter is set to UV / Vertex Attribute .
Overall Scale
Controls the overall scale of the noise in all axes.
Scale
Scales the noise in the X, Y, or Z axis.
Offset
Moves the noise in the X, Y, or Z axis.
Output
Cycles
Controls the number of times the noise cycles.
Low Clip
Controls the point at which values on the low end are clipped out to zero.
High Clip
Controls the point at which values on the high end are clipped out to one.
Brightness
Controls the overall brightness value of the noise. Higher values increase the brightness while lower values decrease the brightness.
Contrast
Controls the overall contrast range of the noise. Higher values increase the contrast while lower values decrease the contrast.
