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Scratches

The Scratches texture is one of the many procedurally generated textures provided with Modo. Procedural textures are mathematically created at render-time and, therefore, have no fixed resolution. They can be magnified almost infinitely with no visual loss in detail. The Scratches texture can be addressed by its two zones: the Background and Foreground colors. The texture modulates from one zone to the other based on your settings. Each zone can have either a Value or a Color and Alpha. The applied zone is dependent on the Layer Effects to which the texture is applied. For example, if you apply the texture as a Displacement, then Modo uses the Value settings, but if you set the texture effect to Diffuse Color, Modo uses the Color and Alpha settings for the Background and Foreground. This texture applies random scratches, dings, and dents to an object's surface and gives a worn-in, rough look. The long, thin, overlapping cuts and dents can be in up to 16 different layers. Adding color to the scratches can create a texture similar to an antique finish.

Note: For information about adding and working with Shader Tree item layers, see the Shader Tree topic.

Layer Properties

Enable	Toggles the effect of the layer on and off. This duplicates the functionality of toggling visibility in the Shader Tree. When disabled, the layer has no effect on the shading of the scene. However, Modo saves disabled layers with the scene, and they are persistent across Modo sessions.
Invert	Inverts the colors (RGB values) for the layer to produce a negative effect.
Blend Mode	Affects the blending between different layers of the same effect type. With this, you can stack several layers for different effects. For more about blending, see Layer Blend Modes.
Opacity	Changes the transparency of the current layer. If there are layers below this layer in the Shader Tree, reducing this value increasingly reveals the lower layers. Reducing the value always dims the effect of the layer.
Locator	Sets the association for the Texture Locator. Most texture layers have a Texture Locator that Modo automatically creates in the Item List. This defines the mapping of the texture (how Modo applies the texture) to the surface. You can specify alternate locators, but this is normally not required. Although you may want multiple texture items to share a single locator.
Projection Type	Defines how a texture/material is applied to a 3D surface. Types vary significantly in their effects. For a guide to each Projection Type see Sorry you didn't find this helpful.
Projection Axis	The texture/material is projected down this axis. This applies to Planar, Cylindrical, Spherical, Cubic, Box, and, Light Probe projection types.

Scratches Properties

Skins - Scratches
Scratch Seed	Specifies the initial number Modo uses when generating the procedural values. Different Seed values produce different random variations and can be useful in changing the texture result; however, you need to use the same Seed value when you want items to retain the same variations.
Scratch Dispersion	Determines how many scratches Modo draws.
Scratch Clip	Determines where the texture's shading transitions to the background color. The higher the value is, the quicker the transition occurs.
Scratch Levels	Determines the number of layers of the texture. Additional levels add additional detail and also lighten the overall look of the texture.
Mix	When enabled, mixes the texture layers. When disabled, Modo stacks the texture layers one upon the other.
Disturb Controls - Alters the look of the generated texture. The noise layer distorts the texture based on the Disturb Magnitude.
Disturb Noise Type	Specifies the look of the texture's distortion and provides several noise function types: • Perlin • Enhanced Perlin • Gradient • Value • Gradient Value • Impulse • Lattice • Bubble
Disturb Octaves	Specifies the number of layers of noise Modo uses when distorting the texture. This, in effect, produces greater detail and is similar to the Patch Levels setting.
Disturb Magnitude	Specifies the strength of the distortion effect on the base texture.
Disturb Scale	Specifies the size (scale) of the distortion effect on the base texture.
Disturb Detail	Specifies the step size that Modo uses between each iteration of the noise to disturb the texture.
Full 3D Distortion	Turns on full 3D distortion, which yields better results, but a full 3D distortion takes longer to render.
Output Controls
Lower Clip	Specifies a clip level for the Background Color/Value to truncate values beyond the defined setting. Combined with the Upper Clip value, you can apply this option to extend or lessen the range of values for the texture.
Upper Clip	Specifies a clip level for the Foreground Color/Value to truncate values beyond the defined setting. Combined with the Lower Clip value, you can apply this option to extend or lessen the range of values for the texture.
Bias	Determines whether the texture favors the foreground or background color. Increasing this value causes the texture to favor the foreground color; decreasing the value favors the background color.
Gain	Determines the falloff effect for the texture. This is similar to a gamma control that affects the falloff of the gradient ramp between the two color values. Setting the Gain to 100% creates a sharp falloff effect; setting the value to 0% creates a plateau around the value (or color mid-point) with a sharp falloff at either gradient extreme.
Output Regions	When enabled, outputs random gray shades per region rather than outlines for tiles. This adds random variety to the procedurally created texture. You can further control the amount of variation using the Regional HSV process layer.
Background Color/Value	Specifies the Color (or Value) of the texture's background area, which ramps toward the Foreground Color/Value.
Background Alpha	Specifies the Alpha transparency of the Background Color.
Background - Use Last Layer	When enabled, makes the Background Color area completely transparent to reveal the shading results of lower layers.
Foreground Color/Value	Specifies the Color (or Value) of the texture's foreground area, which ramps toward the Background Color/Value.
Foreground Alpha	Specifies the Alpha transparency of the Foreground Color.
Foreground - Use Last Layer	When enabled, makes the Foreground Color area completely transparent to reveal the shading results of lower layers.

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