Graphics Programs Reference
In-Depth Information
Using the texture materials and its diferent options depends on the object
mesh, lighting, and the global environment you would like to have around
the object. However, there are not ixed values to use with the materials.
Understanding the materials options is important for knowing the diferent
usage of each value, but practicing is the best method for learning how to
use the materials with your 3D model or scene.
3D Painting
The 3D texturing and materials are not enough in many cases to provide the
realistic efect or the impression that meets with your needs. The 3D painting
concept extends your ability by giving you the option to paint directly on
the model. Unlike the 2D painting, which is based on 2 dimensions, the 3D
painting detects the 3 dimensions of the model and paint on the model
surface and fades out based on the nearest faces to the camera view.
While the 3D painting gives the impression that it uses only the painting
tools such as the Brush tool, the 3D painting in Photoshop involves using
other drawing tools in the Tools panel such as the Brush tool, Pencil, Clone
Stamp, Gradient, History Brush, Eraser, Blur tool, Dodge tool, Mixer Brush
(new in CS5), and the rest of the tools in the second section in the Tools
panel which are related to drawing and painting.
Since the drawing and painting tools are based on the same concept over
the 3D objects, we will cover the 3D painting using the Brush tool and see
the diferent options and commands related to the 3D painting based on this
tool, and you can apply the same options and commands to any of the
paintings and drawing tools in Photoshop.
The idea behind 3D painting is that when you paint over the 3D object, you
actually paint over the materials applied to this mesh, which is by default the
difuse texture. You can apply your painting over other textures such as the
bump texture, glossiness, and shines, etc.
For example, when you paint using the bump texture, Photoshop translates
the brush color and size to a grayscale depth efect inside the 3D object
mesh without afecting the mesh itself. However, it looks like you are
pushing on the mesh of the object to create up and down areas in the
surface of the mesh similar to sculpturing on the model surface. This
painting is afected by the brush size, because the bigger the brush is, the
bigger bumping efect you get. Also, the darker color brushes create more
depth while the light color brushes create less bumping efect.
3D Painting Modes
As mentioned, you can choose to apply the 3D painting on any of the
texture materials on the object. If the object does not have materials applied
to it. A new material is created to apply the paint efect on it.
Search WWH ::




Custom Search