This page provides information on the V-Ray Noise A Texture.
Overview
The Noise A texture map can be used to generate a procedural noise texture. It uses two colors that can also have texture maps assigned to them.
Any texture can be replaced via the Replace With New Texture () button, which activates when you select the texture to be replaced. If the texture is an instance, all copies are changed as well.
UI Paths
||V-Ray Asset Editor|| > Textures (right-click) > Noise A
||V-Ray Asset Editor|| > Create Asset (left-click) > Textures > Noise A
Parameters
Color A – Controls the first of the two colors used by the Noise procedural. When a texture is selected, it overrides the color as long as the texture checkbox is enabled.
Color B – Controls the second of the two colors used by the Noise procedural. When a texture is selected, it overrides the color as long as the texture checkbox is enabled.
Type – Specifies the type of noise to be created through the Noise procedural.
Noise
Perlin
Inflected Perlin
Marble(with Perlin)
Amplitude – Controls the range of the Noise.
Frequency – Controls the the amount of Noise generated. Higher values create smaller, finer noise.
Inflection – Enables and disables the inflection effect.
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.
Multipliers
Mode – Specifies the multiplication mode of the colors.
Multiplier – 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 A – Blends between a color and a texture, if specified.
Color B – 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. 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. 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. 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. Mapping – Specifies the type and shape of the texture. Angular 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. 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. 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 SourceTexture Placement
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)
3D (Object Space)
3D (World Space)
Environment
Cubic
Spherical
Mirror Ball
ScreenTexture Remapping
Mapping Source