This page includes details on Common Attributes found in many of the V-Ray Textures in Modo.

 

Page Contents


Overview


This series of attributes is common among many V-Ray Materials and can be found in the vertical Common tab of the Properties tab. These options presented in the V-Ray Texture Common Parameters rollout are primarily for compatibility when importing .vrscene files, as Modo has its own workflows for achieving much the same desired texture results, such as creating a color offset for a texture by using a constant texture in the shader tree with a blending mode of multiply or add.

 

V-Ray Texture Common Parameters rollout


 

 

 

 

Compatibility With – Used to differentiate between textures exported from 3ds Max or Maya.

Alpha From Intensity – This option is currently not supported.

Bitmap alpha – This is the default setting. With this option selected, V-Ray will render the material the same on both sides. 
Color intensity/luminance – Renders the back side of polygons as invisible to the camera. 
Force opaque – Renders the back side of polygons as invisible to all rays, except shadow rays.

Invert – When enabled the resulting texture color will be flipped.

Invert Alpha – Only available when Invert is checked.  When enabled the resulting texture alpha will be flipped.  If disabled, then just the color will be flipped.

Color Mult – Controls the multiplier for the texture.

Color Offset – Used as an additional offset for the texture color.

Alpha Mult – Controls the multiplier for the texture alpha.

Alpha Offset – Used as an additional offset for the texture alpha.

No UV's Color – Controls the color displayed when there are no uvw coordinates. This works in combination with the Texture UV option called placement type.

 

Alpha parameters (Alpha From Intensity, Alpha Mult, Alpha Offset) are supported only by the V-Ray Layered and V-Ray OSL textures. Other V-Ray textures are considered to have an alpha of 1, so these parameters are ignored in those cases.

 

Texture UV rollout


This series of attributes is common among many V-Ray Materials and the controls in this group let you crop or place a texture. 

 

 

 

Placement Type – Specifies the type of placement to be used.

Whole texture is valid – This is the default setting. With this option selected, V-Ray will render the material the same on both sides. This is the same as enabling the Double Sided option in the Modo material.
Crop – Uses a section of the texture.
Place – Adjusts of the position of the image.

UV noise on – Enables and disables the noise effect.

 

 

 

Animate UV noise – Enables and disables the noise animation effect.  Uses the UV noise phase to animate the noise.

UV noise amount – Controls the amount of UV noise.

UV noise levels – Controls the iterations of UV noise.

UV noise size – Controls the scale of the noise function.

UV noise phase – Controls the UV noise phase.

 

Texture UV Crop rollout


The controls in this group let you crop the texture or reduce its size for custom placement. Cropping a texture means reducing it to a smaller rectangular area than it originally had. Cropping doesn't change the scale of the texture.

 

 

 

U/V – Adjusts the texture location - specifies the location of the top left corner of the image.

Width/Height – Adjusts the width and height of the texture or crop area.

 

Texture UV Place rollout


Placing a texture lets you scale the map and place it anywhere within its tile. Placing can change the texture's scale but shows the entire texture. The four values that specify the placement and size of the cropping or placement region are all animatable. Cropping and placement settings affect the texture only as it's used for this map and any instances of the map. They have no effect on the texture file itself.

 

 

 

U/V – Adjusts the texture location - specifies the location of the top left corner of the image.

Width/Height – Adjusts the width and height of the texture.

Jitter – This amount of random placement variation.

Tile U – When enabled there is horizontal tiling of the texture.

Tile V – When enabled there is vertical tiling of the texture.

 


Example: Invert


This example shows the effect of the using the Invert option.


 


V-Ray Bercon Tile texture using default values for V-Ray Common Texture Parameters

 

 

 


V-Ray Bercon Tile texture with Invert turned on in V-Ray Common Texture Parameters


 

 

 



Example: Color Offset & Color Multiplier


In this example, the textures are adjusted using Color Offset and Color Multiplier values set as noted. Compare these renders to the first cube render above where the tiles are white and the lines between the tiles are black.

 

 


V-Ray Bercon Tile texture with
Color Offset turned on in V-Ray Common Texture Parameters using a color with an RGB value of 0.0, 0.34 and 0.98 to raise the black lines to a medium blue



V-Ray Bercon Tile texture with
Color Mult turned on in V-Ray Common Texture Parameters using a color with an RGB value of 0.66, 0.63 and 0.36 to shift the white to a pale green color


 

 

 


Example: UV noise


In this example, UV noise is enabled using various settings as shown below, using V-Ray Bercon Tile with the Herringbone preset used.

 

 


V-Ray Bercon Tile texture with UV noise turned off



V-Ray Bercon Tile texture with UV noise turned
on with UV noise amount set to 10.0, UV noise levels set to 1.0 and UV noise size set to 1.0


 

 

 
V-Ray Bercon Tile texture with UV noise turned on with UV noise amount set to 25.0, UV noise levels set to 1.0 and UV noise size set to 1.0

 

 
V-Ray Bercon Tile texture with UV noise turned on with UV noise amount set to 50.0, UV noise levels set to 1.0 and UV noise size set to 1.0

 

 

 


V-Ray Bercon Tile texture with UV noise turned on with UV noise amount set to 25.0, UV noise levels set to 5.0 and UV noise size set to 1.0

 


V-Ray Bercon Tile texture with UV noise turned on with UV noise amount set to 25.0, UV noise levels set to 10.0 and UV noise size set to 1.0

 

 

 


V-Ray Bercon Tile texture with UV noise turned on with UV noise amount set to 25.0, UV noise levels set to 10.0 and UV noise size set to 0.5

 


V-Ray Bercon Tile texture with UV noise turned on with UV noise amount set to 25.0, UV noise levels set to 10.0 and UV noise size set to 2.0