1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
from typing import Optional
import moderngl
import numpy
from moderngl_window.geometry.attributes import AttributeNames
from moderngl_window.opengl.vao import VAO
def quad_fs(
attr_names: type[AttributeNames] = AttributeNames,
normals: bool = True,
uvs: bool = True,
name: Optional[str] = None,
) -> VAO:
"""
Creates a screen aligned quad using two triangles with normals and texture coordinates.
Keyword Args:
attr_names (AttributeNames): Attrib name config
normals (bool): Include normals in VAO
uvs (bool): Include texture coordinates in VAO
name (str): Optional name for the VAO
Returns:
A :py:class:`~moderngl_window.opengl.vao.VAO` instance.
"""
return quad_2d(
size=(2.0, 2.0),
normals=normals,
uvs=uvs,
attr_names=attr_names,
name=name,
)
def quad_2d(
size: tuple[float, float] = (1.0, 1.0),
pos: tuple[float, float] = (0.0, 0.0),
normals: bool = True,
uvs: bool = True,
attr_names: type[AttributeNames] = AttributeNames,
name: Optional[str] = None,
) -> VAO:
"""
Creates a 2D quad VAO using 2 triangles with normals and texture coordinates.
Keyword Args:
size (tuple): width and height
pos (float): Center position x and y
normals (bool): Include normals in VAO
uvs (bool): Include texture coordinates in VAO
attr_names (AttributeNames): Attrib name config
name (str): Optional name for the VAO
Returns:
A :py:class:`~moderngl_window.opengl.vao.VAO` instance.
"""
width, height = size
xpos, ypos = pos
# fmt: off
pos_data = numpy.array([
xpos - width / 2.0, ypos + height / 2.0, 0.0,
xpos - width / 2.0, ypos - height / 2.0, 0.0,
xpos + width / 2.0, ypos - height / 2.0, 0.0,
xpos - width / 2.0, ypos + height / 2.0, 0.0,
xpos + width / 2.0, ypos - height / 2.0, 0.0,
xpos + width / 2.0, ypos + height / 2.0, 0.0,
], dtype=numpy.float32)
normal_data = numpy.array([
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
], dtype=numpy.float32)
uv_data = numpy.array([
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
0.0, 1.0,
1.0, 0.0,
1.0, 1.0,
], dtype=numpy.float32)
# fmt: on
vao = VAO(name or "geometry:quad", mode=moderngl.TRIANGLES)
vao.buffer(pos_data, "3f", [attr_names.POSITION])
if normals:
vao.buffer(normal_data, "3f", [attr_names.NORMAL])
if uvs:
vao.buffer(uv_data, "2f", [attr_names.TEXCOORD_0])
return vao
|
