Creating and Modifying Materials in Toolbox

Creating and Modifying Materials

A material is defined by a number of properties. The available properties depend on the selected material type.

You cannot modify the materials in the Toolbox materials library, but you can use them as a basis for new materials. The Materials Editor provides property settings such as glossiness, transparency, highlights, and texture. The available property settings change, depending on the type of material you are updating.

To edit the property settings of a material, double-click a material's swatch, or right-click a material's swatch and click Edit.

Update a Generic Material

Edit an existing material (provided in the Toolbox materials library), or start with a generic material. The changes you make are displayed in the material swatch preview. You can change the shape of the image that is displayed in the preview.

Default Generic material has the following properties.

The color of a material when applied to an object might appear different in various areas of the object. For example, when you look at a red sphere, it does not appear to be uniformly red. The sides away from the light appear to be a darker red than the sides facing the light. The reflection highlight appears the lightest red. In fact, if the red Sphere is very shiny, its highlight may appear to be white.

A specific color can be assigned to a material or a material can inherit its material from the color assigned to the object in which the material is applied.

Controls the base diffuse color map of the material. The diffuse color is the color that an object reflects when illuminated by direct daylight or artificial light.

You can assign a custom texture, which can be either an image or a procedural texture.

Image Fade
Controls the composite between the base color and the diffuse image. The Image Fade property is only editable if an image is used.

The reflective quality of a material defines the degree of glossiness or dullness. To simulate a glossy surface, the material has a small highlight, and its specular color is lighter, perhaps even white. A duller material has a larger highlight that is closer to the main color of the material.

Controls the means for deriving specular highlights of the material. The Metallic setting disperses light according to the angle of the light on the object (anisotropic). Metallic highlights are the color of the material. Non-metallic are the color of the lights hitting the material.

Use Other Properties for Special Effects

The following properties can be used to create specific effects. Additional properties are available, depending on the type of material.

Reflectivity simulates a scene reflected on the surface of a shiny object. For reflectivity maps to render well, the material should be shiny, and the reflection image itself should have a high resolution (at least 512 by 480 pixels). The Direct and Oblique sliders control the level of reflections and the intensity of the specular highlight on surfaces.

T ransparency
A completely transparent object allows the passage of light through it. At 1.0, the material is completely transparent, and at 0.0, the material is completely opaque. The effect of transparency is best previewed against a pattern background.

The Translucency and Refraction properties become editable only when the Transparency value is greater than 0. A translucent object, such as frosted glass, lets some light pass through and scatters some light within the object. At 0.0, the material is not translucent; at 1.0, the material is as translucent as possible.

The refraction index number controls the degree to which light rays are bent as they pass through the material and thus distort the appearance of objects on the other side of the object. For example, at 1.0, the object behind the transparent object is not distorted. At 1.5, the object is distorted greatly, as if it were seen through a glass marble.

Cutout maps make a material partially transparent, giving a perforation effect based on a grayscale interpretation of a texture. You can select an image file to use for the cutout mapping. Lighter areas of the map render as opaque and darker areas render as transparent.

When you use transparency for frosting or translucent effects, reflectivity is maintained. Cutout areas are not reflective.

Self-illumination maps make portions of an object appear to glow. For example, to simulate neon without using a light source, you could set a self-illumination value greater than zero. No light is cast on other objects and the self-illuminated object does not receive shadows.

White areas of the map render as fully self-illuminating. Black areas render with no self-illumination. Gray areas render as partially self-illuminating, depending on the grayscale value.

Filter color creates the effect of a color filter over the illuminated surface.
Luminance causes a material to simulate being lit within a photometric light source. How much light is emitted is a selected value in photometric units. No light is cast on other objects.
Color temperature sets the color of the self-illumination.

You can select an image file or procedural maps to use for mapping. Bump mapping makes an object appear to have a bumpy or irregular surface. When you render an object with a bump-mapped material, lighter (whiter) areas of the map appear to be raised and darker (blacker) areas appear to be low. If the image is in color, the gray-scale value of each color is used. Bump mapping increases rendering time significantly but adds to the realism.

Use bump maps when you want to take the smoothness off a surface, or to create an embossed look. Keep in mind, however, that the depth effect of a bump map is limited because it does not affect the profile of the object and cannot be self-shadowing. If you want extreme depth in a surface, you should use modeling techniques instead. The bumps are a simulation created by perturbing face normals before the object is rendered. Because of this, bumps do not appear on the silhouette of bump-mapped objects.

Use the Amount slider to adjust the height of the bump. Higher values render as higher relief and low values render as low relief. Grayscale images make effective bump maps.

Sets the hue and saturation value of the color mixed with white.

Powered by  AutoCAD ®

    • Related Articles

    • About Organizing Render Materials

      Copy materials to different libraries to create your own organization. About Materials Libraries The Toolbox render material library, with more than 700 materials and 1000 textures, is included with the product. You can copy Toolbox render materials ...
    • Render Materials Missing Layer Information (Overview)

      As of build 15.6.1806, the Microvellum Apply Material screen contains a column for the AutoCAD Layer Name. The purpose of this article is to provide an overview of the Apply Materials screen. This new column makes it possible to set up rendering ...
    • Render Materials Missing Layer Information (Reference)

      As of build 15.6.1806, the Microvellum Apply Materials screen contains a column for the AutoCAD Layer Name and revised controls. The purpose of this article is to provide a reference for commands and controls on the Apply Materials screen. See Render ...
    • About Materials

      Use materials to give your 3D models a realistic appearance. Materials represent substances such as steel, cotton, and glass. They can be applied to a 3D model to give the objects a realistic appearance. You can adjust the properties of materials to ...
    • Applying Materials

      Applying MaterialsThe materials for a drawing can be changed using the Apply Materials interface. To access the interface, click on the Visual Style menu icon the tool strip, and then click on the Change Materials icon. The Apply Materials interface ...
    • Recent Articles

    • Asking to Re-Activate Software on Start Up

      If your license is current, but you keep getting the Activate Software window when starting up Toolbox, this is the fix. Instead of entering your serial number and password every time, go to your MV Toolbox icon on your desktop and Right-click then ...
    • Toolbox Release Notes | Build 22.1.0620.641

      The following Release Notes apply to Toolbox Build 22.1.0620.641 Reports & Labels Resolutions: Resolved an issue with the auto-label rotation when you create new g-code from a batch drawing. Resolved an issue with certain saws that prevented the ...
    • Toolbox Release Notes | Build 22.1.0607.641

      The following Release Notes apply to Toolbox Build 22.1.0607.641 Report Groups Resolutions: Removed and extra "BMP" choice for the HTML format.   Resolved an issue that prevented changing the scaling in HTML output. Resolved an issue that caused ...
    • Toolbox Release Notes | Build 22.1.0525.641

      The following Release Notes apply to Toolbox Build 22.1.0525.641 Database Management Resolutions: Resolved an issue that caused products and subassemblies to need to be imported twice in order to see them in Toolbox.  Resolved an issue with ...
    • Microvellum Foundation Library Release Notes | Build 22.0520

      The following release notes apply to Microvellum Foundation Library, Build 22.0520 Please make sure you are selecting the correct specification group when drawing products. There may be specification groups for both metric and imperial. Additions: ...