qxLib
draw_mode.h
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1 /**
2 
3  @file draw_mode.h
4  @author Khrapov
5  @date 9.04.2021
6  @copyright © Nick Khrapov, 2021. All right reserved.
7 
8 **/
9 #pragma once
10 
11 namespace qx
12 {
13 
14 enum class draw_mode
15 {
16  /*
17  Separate points.
18 
19  { 0 }, { 1 }, { 2 }, { 3 }
20  */
21  points,
22 
23  /*
24  Vertices 0 and 1 are considered a line.
25  Vertices 2 and 3 are considered a line.
26  And so on.
27 
28  { 0, 1 },
29  { 2, 3 },
30  */
31  lines_list,
32 
33  /*
34  The adjacent vertices are considered lines.
35 
36  { 0, 1 },
37  { 1, 2 },
38  { 2, 3 }
39  */
40  lines_strip,
41 
42  /*
43  Vertices 0, 1, and 2 form a triangle.
44  Vertices 3, 4, and 5 form a triangle.
45  And so on.
46 
47  { 0, 1, 2 },
48  { 3, 4, 5 },
49  { 6, 7, 8 }
50  */
51  triangles_list,
52 
53  /*
54  Every group of 3 adjacent vertices forms a triangle.
55 
56  { 0, 1, 3 },
57  { 1, 2, 4 },
58  { 2, 3, 5 }
59  */
60  triangles_strip,
61 
62  /*
63  The first vertex is always held fixed.
64  From there on, every group of 2 adjacent vertices
65  form a triangle with the first.
66 
67  { 0, 1, 2 }
68  { 0, 2, 3 }
69  { 0, 3, 4 }
70  { 0, 4, 5}
71  */
72  triangles_fan,
73 };
74 
75 }
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