Marble

The Marble texture map can be used to generate a procedural marble texture. It uses two colors that can also have texture maps assigned to them.  

Color Base – Specifies the main color of the marble. All parameters in this section can have a texture map assigned to their channel, as long as the checkbox is enabled. 

Color Vein – Specifies the color of the marble's veins

Vein Width – Controls the thickness of the marble veins.

Diffusion – Controls the amount of blur applied to the veins.

Contrast – Controls the contrast.

Noise Attributes

Amplitude  – Controls the amount of distortion in the marbles vein's. A value of 0 makes these a straight line. 

Ratio – Controls the fractal noise frequency (from low to high frequency).

Ripples – Controls the scale of the fundamental frequency of the fractal nous used in the texture.

Depth Min – Minimum level of the fractal noise.

Depth Max – Maximum level of the fractal noise.

Color Manipulation

Invert Texture – Inverts the RGB texture values.

Alpha from Intensity – Uses the texture RGB intensity/luminance as alpha channel.

Color Gain – Corrects the color of the texture by multiplying the the RGB color values in the texture with the RGB color values specified here. When a texture is selected, it overrides the color as long as the texture checkbox is enabled. 

Color Offset – Corrects the color of the texture by adding the RGB color values specified here to the RGB color values in the texture. When a texture is selected, it overrides the color as long as the texture checkbox is enabled. 

Default Color – Specifies a default color used for polygons with no valid UVs. In case the map is not tiled, specifies a default color that is used outside the texture square.  When a texture is selected, it overrides the color as long as the texture checkbox is enabled.

Mode – Specifies the multiplication mode of the colors. 

Multiply – Multiplies the RGB numbers for each pixel of the top layer with the RGB number of the corresponding pixel from the bottom layer. The result is a darker picture. The color used for blending is black.
Blend Amount–  Takes each pixel from the top layer if present. Otherwise the bottom layer is used. The color used for blending is the one specified in the color slot.

Color Base – Blends between a color and a texture, if specified.

Color Vein – Blends between a color and a texture, if specified.

Type – Controls how the texture is positioned on the geometry.

2D (UV Channel) – The texture uses the object UV coordinates.
3D (Object Space) – Places the texture based on the local object coordinates independent of the object UVs.
3D (World Space) – Places the texture based on the world coordinates independent of the object UVs
Environment – This mode is applicable if the map is connected to an Environment slot or a Dome light.
Texture Remapping – Uses UVW values from a color texture or separate grayscale textures.
Mapping Source – The texture uses an external UV placement source.

2D (UV Channel)

UV Channel/Set – Specifies the index of the mapping channel data to use. A value of 1 takes the first available channel. 

Repeat U/V – Determines how many times the texture is repeated in the 0 to 1 UV square.

Lock U/V Repeat – Locks the U/V repeat.

Offset U/V – Controls the texture offset in the U and V direction. 

Rotate – Rotates the texture (in degrees). 

Tile U/V – Tiles the texture in the U and V direction. If the option is disabled, the Default texture color is used outside the 0 to 1 UV square. Default color is found in Parameters > Color Manipulation.

Mirror U/V  – Mirrors the texture in the U and V direction separately. The option cuts the texture in the half flipping one side vertically or horizontally. This can be used to avoid seams in-between non-tileable repeated textures. 

3D (Object Space)

Repeat X/Y/Z – Determines how many times the texture is repeated along the X/Y/Z axis.

Lock U/V Repeat – Locks the X/Y/Z repeat.

Offset X/Y/Z – Controls the texture offset in the X/Y/Z direction.

Rotate X/Y/Z – Rotates the texture around the X/Y/Z axis.

3D (World Space)

Environment

Mapping – Specifies the type and shape of the texture. 

Angular
Cubic
Spherical
Mirror Ball
Screen

Rotate H – Rotates the environment sphere horizontally. 

Flip H – Flips the environment sphere horizontally.  

Rotate V – Rotates the environment sphere vertically.

Flip V – Flips the environment sphere vertically. This option is active only in Spherical Mapping. 

Ground – Enables ground projection of the texture.  

Position X/Y/Z – Offsets the ground projection along the X/Y/Z axis. 

Radius – Specifies a projection radius. Can be used to control the scale of the projection.  

2d Transformation – see 2D (UV channel) parameters.

Texture Remapping

Mode – Determines whether a single or multiple textures should be used for U and V texture coordinates remapping.

UV – The Red input texture channel determines the U sampling coordinate. The Green input texture channel determines the V coordinate.

U – The value of this texture determines the U sampling coordinate.

V – The value of this texture determines the V sampling coordinate.

Mapping Source

UV Placement Source – External UV placement source to be used for the texture placement.

2D (UV Channel)

3D (Object Space)

3D (World Space)

Environment

Texture Remapping

Mapping Source