Graphics Programs Reference
In-Depth Information
afect the 3D model, including the Brush tool, the Pencil tool, the Eraser tool,
the Gradient tool, and so on.
In this chapter, I will discuss how to work with texture, painting, and drawing
tools with the 3D object, and how to apply them to 3D model examples
from 3Dvia.com.
Texture
Textures are 2D layers or images that are applied to an object to give it a
realistic look and feel. When the model consists of many meshes, you can
select each mesh individually and apply the texture to it separately from
other meshes in the model.
When you create a 3D layer, notice the textures applied to each mesh in the
model through the sublayers to the 3D layer in the Layer menu. When you
expand the arrow next to the 3D layer, the sublayers appear to show the
materials applied to each polygon in the model mesh.
In addition to navigating the 3D layer materials and polygons, you can show
or hide the Eye icons next to each material layer to give you more control
over the model meshes.
Before you try applying a texture to a model, let's start with the diferent
texture options located in the Materials section of the 3D panel. When you
select a 3D layer, you can view its options and details in the 3D panel.
When you open the 3D panel, the scene shows the whole structure
of the model, including the meshes, materials, and light applied to it.
When you click Filter
>
Materials, only the materials and polygons
applied to this object are displayed (Figure 8.1).
Generally, associating the texture with the object is related to
diferent types of materials that can afect the object, such as texture
of the object itself, the relection on the object, and the overall
environmental efect from outside objects. Following are deinitions
for the types of materials and the settings that afect the object—you
can edit these options in the 3D panel, as shown later in this chapter:
• Difuse: The difuse color is the basic material that applies to the
object. The difusion materials can be a solid color or 2D texture
image that covers the polygon. When you load an external
texture as the difuse materials for the object, Photoshop has a
reference for this material and applies it to the object.
• Opacity: This value determines the transparency value of the
object, ranging from 0-100%. When you apply a texture as an
opacity reference, Photoshop identiies the grayscale values of
the texture image and applies it as diferent opacity values on
the object.
Figure 8.1
3D Materials in the 3D panel.
