New AutoCAD Material Creation and Its Application in Packaging Design (I)

A good packaging design should not only consider its packaging function, but also consider its display effect. AutoCAD is effective in the structural design and decoration design of packaging. However, most designers currently focus on using their powerful drawing, editing and Functions such as dimensioning are used to design the packaging structure, and other software is used to perform the interior design. This requires a lot of time to learn how to use various software, and it is necessary to remodel or import the AutoCAD model into other software. The software adds a lot of unnecessary trouble.

This article focuses on the use of AutoCAD to create a new material to achieve the desired effect of display, so that engineering designers familiar with the AutoCAD modeling method make full use of the software's features, in the early design can be combined with structural design and decoration design, so as to obtain the best The overall effect.

Good packaging design should not only consider its packaging function, but also consider its display effect. Using AutoCAD to create new materials can help you achieve the desired display effect.

Rendering of AutoCAD software is done through the Render toolbar, which provides functions such as creating lights, materials, backgrounds, foregrounds, and generating renderings, where the Materials button is used for material operations.

1. Create new material

The AutoCAD Material Library provides users with more than 100 materials, including wood, plastic, glass, and other properties, and offers a variety of prefabricated patterns. But for complex and varied packaging and decorating designs, these pre-defined materials are still far from meeting the design requirements, so you need to create a new material with the New button.

There are four types of new materials: standard materials, wood, marble, and granite. In packaging design, the most used material is a standard material.

Click the Materials icon button in the Render toolbar, open the Materials dialog box, select the Standard type in the New Material Type drop-down list below the New button, click the New button, enter the New Standard Material Dialog box. In the dialog box, you can create different colors of solid materials such as plastic, glass, etc. You can also open the Bitmap File dialog box by selecting the Find File button in the dialog box. Picture of a box surface. By adjusting properties such as reflectivity, roughness, transparency, and refractive index, you can also display the effect of pictures on different materials.

In the Attributes column, glass, ceramic, plastic, rubber, matt, paint, metal can be produced by adjusting the values ​​of color, pattern, reflectance, roughness, transparency, refractive index, and roughness. Various effects

2. Adjust material properties

Material properties include color, pattern, reflectivity, roughness, transparency, refractive index, and roughness, all of which are contained in the Attributes column. Glass, ceramic, plastic, rubber, and Asia can be produced by adjusting the values ​​of these properties. Light, paint, metal and other effects.

(1) Color

The Color/Pattern and Ambient items under the Attributes column are used to set the primary color and shadow color of the material. The main color is the basic color of the material, and the shadow color is the color of the object's backlight. It superimposes the main color on the object's backlight surface.

After selecting the Color/Pattern item, click on the By ACI (with ACI, matching the color in AutoCAD, no additional color specified) check box in the Color column, and cancel the little hook to adjust Red The position of the /Green/Blue slider adjusts the main color. You can also click on the color block in the Color column to select the color and adjust the hue and saturation of the color through the Color dialog box. brightness. The shadow color is locked by default with the main color. Click the Lock check box in the Color column to cancel the little hook and adjust the shadow color. The adjustment method is the same as the main color adjustment method. , but generally do not set the shadow color separately.

(2) Pattern

If you want to simulate the pattern on the surface of wood, ceramic or paper box, do not perform the above settings after selecting the Color/Pattern item. Click the Find File button directly to open an image (bitmap) file. This image file can be scanned by the photo or hand. Drawing and other methods can be saved as bmp, jpg, tif and other formats. Through the Adjust Bitmap button above the Find File button, the size, distribution, and orientation of the bitmap relative to the surface of the object can be set in the Adjust Material Bitmap Placement dialog box. To match the bitmap size with the surface of the object, select Fit To Object in the Map Style field (it automatically matches the size of the surface of the object).

(3) Reflectance

The reflectivity is set by the Reflection item. It is used to control the color and reflective effect of the highlights on the surface of the object.

For materials with high reflectivity such as glass, plastic, varnish, and metal, the highlights are generally white. The setting method is the same as setting the main color.

To set the reflection effect, first click the Mirror check box in the Color column. Only the small hooks will produce the reflection effect, as shown in Figure 1. Then set the intensity of the specular reflection by adjusting the value in the Value column.

(4) Roughness

The greater the roughness value of the material, the larger the surface of the object's high-gloss area, producing a matt-like or rubber-like effect; the smaller the roughness value, the smaller the high-light area, and can produce smooth surfaces such as glass, ceramics, and metals. After selecting the Roughness item, you can adjust the roughness in the Value column.