Lưu ý
Cần có ủy quyền mới truy nhập được vào trang này. Bạn có thể thử đăng nhập hoặc thay đổi thư mục.
Cần có ủy quyền mới truy nhập được vào trang này. Bạn có thể thử thay đổi thư mục.
A 3D primitive is a collection of vertices that form a single 3D entity.
In this section
Topic | Description |
---|---|
A point list is a collection of vertices that are rendered as isolated points. Your application can use point lists in 3D scenes for star fields, or dotted lines on the surface of a polygon. |
|
A line list is a list of isolated, straight line segments. Line lists are useful for such tasks as adding sleet or heavy rain to a 3D scene. Applications create a line list by filling an array of vertices. |
|
A line strip is a primitive that is composed of connected line segments. Your application can use line strips for creating polygons that are not closed. A closed polygon is a polygon whose last vertex is connected to its first vertex by a line segment. |
|
A triangle list is a list of isolated triangles. The isolated triangles might or might not be near each other. A triangle list must have at least three vertices and the total number of vertices must be divisible by three. |
|
A triangle strip is a series of connected triangles. Because the triangles are connected, the application does not need to repeatedly specify all three vertices for each triangle. |
Related topics
Coordinate systems and geometry