def initializeGL(self):
self.ctx = ModernGL.create_context()
prog = self.ctx.program(
vertex_shader='''
#version 330
in vec2 vert;
in vec4 vert_color;
out vec4 frag_color;
uniform vec2 scale;
uniform float rotation;
void main() {
frag_color = vert_color;
float r = rotation * (0.5 + gl_InstanceID * 0.05);
mat2 rot = mat2(cos(r), sin(r), -sin(r), cos(r));
gl_Position = vec4((rot * vert) * scale, 0.0, 1.0);
}
'''),
fragment_shader='''
#version 330
in vec4 frag_color;
out vec4 color;
void main() {
color = vec4(frag_color);
}
'''),
def __init__(self, **kwargs):
super(CustomWidget, self).__init__(**kwargs)
with self.canvas:
self.ctx = ModernGL.create_context()
self.vert = vertex_shader='''
#version 330
in vec2 vert;
void main() {
gl_Position = vec4(vert, 0.0, 1.0);
}
''')
self.frag = fragment_shader='''
#version 330
out vec4 color;
void main() {
color = vec4(0.30, 0.50, 1.00, 1.0);
}
''')
self.prog = self.ctx.program(self.vert, self.frag])
self.vbo = self.ctx.buffer(struct.pack('6f', 0.0, 0.8, -0.6, -0.8, 0.6, -0.8))
self.vao = self.ctx.simple_vertex_array(self.prog, self.vbo, ['vert'])
self.draw()
Callback(self.draw)
def main():
'''
Sample program to test GLWindow.
'''
print('GLWindow:', GLWindow.__version__)
print('Python:', sys.version)
print('Platform:', sys.platform)
wnd = GLWindow.create_window((480, 480), title='GLWindow Sample')
wnd.vsync = False
ctx = ModernGL.create_context()
prog = ctx.program([
ctx.vertex_shader('''
#version 330
in vec2 vert;
in vec4 vert_color;
out vec4 frag_color;
uniform vec2 scale;
uniform float rotation;
void main() {
frag_color = vert_color;
float r = rotation * (0.5 + gl_InstanceID * 0.05);
mat2 rot = mat2(cos(r), sin(r), -sin(r), cos(r));
gl_Position = vec4((rot * vert) * scale, 0.0, 1.0);
}
'''),
ctx.fragment_shader('''
#version 330
in vec4 frag_color;
out vec4 color;
void main() {
color = vec4(frag_color);
}
'''),
])
scale = prog.uniforms['scale']
rotation = prog.uniforms['rotation']
vbo = ctx.buffer(struct.pack(
'18f',
1.0, 0.0, 1.0, 0.0, 0.0, 0.5,
-0.5, 0.86, 0.0, 1.0, 0.0, 0.5,
-0.5, -0.86, 0.0, 0.0, 1.0, 0.5,
))
vao = ctx.simple_vertex_array(prog, vbo, ['vert', 'vert_color'])
while wnd.update():
wnd.clear(0.95, 0.95, 0.95)
width, height = wnd.size
scale.value = (height / width * 0.75, 0.75)
ctx.viewport = wnd.viewport
ctx.enable(ModernGL.BLEND)
rotation.value = wnd.time
vao.render(instances=10)
def __init__(self, **kwargs):
super(CustomWidget, self).__init__(**kwargs)
with self.canvas:
self.ctx = ModernGL.create_context()
self.prog = self.ctx.program(
vertex_shader='''
#version 330
uniform mat4 Mvp;
in vec3 in_vert;
in vec3 in_color;
out vec3 v_color;
void main() {
v_color = in_color;
gl_Position = Mvp * vec4(in_vert, 1.0);
}
'''),
fragment_shader='''
#version 330
in vec3 v_color;
out vec4 f_color;
void main() {
f_color = vec4(v_color, 1.0);
}
'''),
])
def run(self):
glfw.make_context_current(self._wnd)
self._ctx = ModernGL.create_context()
self.initialize(self._ctx)
while not glfw.window_should_close(self._wnd):
width, height = self.size()
self._ctx.viewport = (0, 0, width, height)
self.render(self._ctx)
glfw.swap_buffers(self._wnd)
glfw.wait_events()
def initializeGL(self):
self.ctx = ModernGL.create_context()
prog = self.ctx.program(
vertex_shader='''
#version 330
in vec2 vert;
void main() {
gl_Position = vec4(vert, 0.0, 1.0);
}
'''),
fragment_shader='''
#version 330
out vec4 color;
void main() {
color = vec4(0.30, 0.50, 1.00, 1.0);
}
'''),
def initializeGL(self):
self.ctx = ModernGL.create_context()
img = Image.open(os.path.join(os.path.dirname(__file__), '..', 'data', 'noise.jpg'))
texture = self.ctx.texture(img.size, 3, img.tobytes())
texture.use()
prog = self.ctx.program(
vertex_shader='''
#version 330
in vec2 vert;
in vec2 tex_coord;
out vec2 v_tex_coord;
uniform vec2 scale;
uniform float rotation;
void main() {
mat2 rot = mat2(
cos(rotation), sin(rotation),
-sin(rotation), cos(rotation)
);
gl_Position = vec4((rot * vert) * scale, 0.0, 1.0);
v_tex_coord = tex_coord;
}
'''),
fragment_shader='''
#version 330
uniform sampler2D texture;
in vec2 v_tex_coord;
out vec4 color;
void main() {
color = vec4(texture2D(texture, v_tex_coord).rgb, 1.0);
}
'''),
import struct
import GLWindow
import ModernGL
from pyrr import Matrix44
wnd = GLWindow.create_window()
ctx = ModernGL.create_context()
prog = ctx.program(
ctx.vertex_shader('''
#version 330
uniform mat4 Mvp;
in vec3 in_vert;
in vec3 in_color;
out vec3 v_color;
void main() {
v_color = in_color;
gl_Position = Mvp * vec4(in_vert, 1.0);
}
'''),
ctx.fragment_shader('''
#version 330
in vec3 v_color;
out vec4 f_color;
import os
import struct
import GLWindow
import ModernGL
from PIL import Image
# Window & Context
wnd = GLWindow.create_window()
ctx = ModernGL.create_context()
# Shaders & Program
prog = ctx.program([
ctx.vertex_shader('''
#version 330
in vec2 vert;
in vec2 tex_coord;
out vec2 v_tex_coord;
uniform vec2 scale;
uniform float rotation;
void main() {
mat2 rot = mat2(
cos(rotation), sin(rotation),
-sin(rotation), cos(rotation)
);
def __init__(self, wnd):
self.wnd = wnd
self.ctx = ModernGL.create_context()
self.prog = self.ctx.program([
self.ctx.vertex_shader('''
#version 330
uniform vec4 Camera;
// Per vertex
in vec2 in_vert;
in vec2 in_texture;
// Per instance
in vec3 in_pos;
in vec2 in_size;
in vec4 in_tint;
out vec2 v_vert;
out vec2 v_texture;
out vec4 v_tint;
void main() {
mat2 rotate = mat2(
cos(in_pos.z), sin(in_pos.z),
-sin(in_pos.z), cos(in_pos.z)
);
v_vert = rotate * (in_vert * in_size) + in_pos.xy;
gl_Position = vec4((v_vert - Camera.xy) / Camera.zw, 0.0, 1.0);
v_texture = in_texture;
v_tint = in_tint;
}
'''),
self.ctx.fragment_shader('''
#version 330
uniform sampler2D Texture;
in vec2 v_vert;
in vec2 v_texture;
in vec4 v_tint;
out vec4 f_color;
void main() {
vec4 tex = texture(Texture, v_texture);
vec3 color = tex.rgb * (1.0 - v_tint.a) + v_tint.rgb * v_tint.a;
f_color = vec4(color, tex.a);
}
'''),
])
img = Image.open(local('data', 'crate.png')).convert('RGBA')
self.tex1 = self.ctx.texture(img.size, 4, img.tobytes())
self.tex1.use(0)
img = Image.open(local('data', 'ball.png')).convert('RGBA')
self.tex2 = self.ctx.texture(img.size, 4, img.tobytes())
self.tex2.use(1)
vertices = np.array([
-1.0, -1.0, 0.0, 0.0,
-1.0, 1.0, 0.0, 1.0,
1.0, -1.0, 1.0, 0.0,
1.0, 1.0, 1.0, 1.0,
])
vbo1 = self.ctx.buffer(vertices.astype('f4').tobytes())
self.vbo2 = self.ctx.buffer(reserve=1024 * 1024)
vao_content = [
(vbo1, '2f2f', ['in_vert', 'in_texture']),
(self.vbo2, '3f2f4f/i', ['in_pos', 'in_size', 'in_tint']),
]
self.vao = self.ctx.vertex_array(self.prog, vao_content)
self.space = pymunk.Space()
self.space.gravity = (0.0, -900.0)
shape = pymunk.Segment(self.space.static_body, (5, 100), (595, 100), 1.0)
shape.friction = 1.0
self.space.add(shape)
self.bodies = []
self.balls = []
for x in range(5):
for y in range(10):
size = 20
mass = 10.0
moment = pymunk.moment_for_box(mass, (size, size))
body = pymunk.Body(mass, moment)
body.position = Vec2d(300 + x * 50, 105 + y * (size + 0.1))
shape = pymunk.Poly.create_box(body, (size, size))
shape.friction = 0.3
self.space.add(body,shape)
self.bodies.append(body)
def initializeGL(self):
self.ctx = ModernGL.create_context()
img = Image.open(
os.path.join(os.path.dirname(__file__), '..', 'data', 'noise.jpg'))
texture = self.ctx.texture(img.size, 3, img.tobytes())
texture.use()
prog = self.ctx.program([
self.ctx.vertex_shader('''
#version 330
in vec2 vert;
in vec2 tex_coord;
out vec2 v_tex_coord;
uniform vec2 scale;
uniform float rotation;
void main() {
mat2 rot = mat2(
cos(rotation), sin(rotation),
-sin(rotation), cos(rotation)
);
gl_Position = vec4((rot * vert) * scale, 0.0, 1.0);
v_tex_coord = tex_coord;
}
'''),
self.ctx.fragment_shader('''
#version 330
uniform sampler2D texture;
in vec2 v_tex_coord;
out vec4 color;
void main() {
color = vec4(texture2D(texture, v_tex_coord).rgb, 1.0);
}
'''),
])
self.scale = prog.uniforms['scale']
self.rotation = prog.uniforms['rotation']
vbo = self.ctx.buffer(
struct.pack(
'12f',
1.0,
0.0,
0.5,
1.0,
-0.5,
0.86,
1.0,
0.0,
-0.5,
-0.86,
0.0,
0.0,
))
self.vao = self.ctx.simple_vertex_array(prog, vbo,
['vert', 'tex_coord'])
def __init__(self, wnd):
self.wnd = wnd
self.ctx = ModernGL.create_context()
self.prog = self.ctx.program([
self.ctx.vertex_shader('''
#version 330
in vec2 in_vert;
in vec4 in_color;
out vec4 v_color;
uniform float Rotation;
uniform vec2 Scale;
void main() {
v_color = in_color;
float r = Rotation * (0.5 + gl_InstanceID * 0.05);
mat2 rot = mat2(cos(r), sin(r), -sin(r), cos(r));
gl_Position = vec4((rot * in_vert) * Scale, 0.0, 1.0);
}
'''),
self.ctx.fragment_shader('''
#version 330
in vec4 v_color;
out vec4 f_color;
void main() {
f_color = v_color;
}
'''),
])
self.scale = self.prog.uniforms['Scale']
self.rotation = self.prog.uniforms['Rotation']
vertices = np.array([
# x, y, red, green, blue, alpha
1.0,
0.0,
1.0,
0.0,
0.0,
0.5,
-0.5,
0.86,
0.0,
1.0,
0.0,
0.5,
-0.5,
-0.86,
0.0,
0.0,
1.0,
0.5,
])
self.vbo = self.ctx.buffer(vertices.astype('f4').tobytes())
self.vao = self.ctx.simple_vertex_array(self.prog, self.vbo,
['in_vert', 'in_color'])
def __init__(self, wnd):
self.wnd = wnd
self.ctx = ModernGL.create_context()
width, height = self.wnd.size
canvas = np.array([0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0]).astype('f4')
pixels = np.round(np.random.rand(width, height)).astype('f4')
grid = np.dstack(np.mgrid[0:height, 0:width][::-1]).astype('i4')
self.prog = self.ctx.program([
self.ctx.vertex_shader('''
#version 330
in vec2 in_vert;
out vec2 v_text;
void main() {
v_text = in_vert;
gl_Position = vec4(in_vert * 2.0 - 1.0, 0.0, 1.0);
}
'''),
self.ctx.fragment_shader('''
#version 330
uniform sampler2D Texture;
in vec2 v_text;
out vec4 f_color;
void main() {
f_color = texture(Texture, v_text);
}
'''),
])
self.transform = self.ctx.program(
self.ctx.vertex_shader('''
#version 330
uniform sampler2D Texture;
uniform int Width;
uniform int Height;
in ivec2 in_text;
out float out_vert;
#define LIVING 0.0
#define DEAD 1.0
bool cell(int x, int y) {
return texelFetch(Texture, ivec2((x + Width) % Width, (y + Height) % Height), 0).r < 0.5;
}
void main() {
bool living = cell(in_text.x, in_text.y);
int neighbours = 0;
if (cell(in_text.x - 1, in_text.y - 1)) neighbours++;
if (cell(in_text.x - 1, in_text.y + 0)) neighbours++;
if (cell(in_text.x - 1, in_text.y + 1)) neighbours++;
if (cell(in_text.x + 1, in_text.y - 1)) neighbours++;
if (cell(in_text.x + 1, in_text.y + 0)) neighbours++;
if (cell(in_text.x + 1, in_text.y + 1)) neighbours++;
if (cell(in_text.x + 0, in_text.y + 1)) neighbours++;
if (cell(in_text.x + 0, in_text.y - 1)) neighbours++;
if (living) {
out_vert = (neighbours >= 2 && neighbours <= 4) ? LIVING : DEAD;
} else {
out_vert = (neighbours == 3) ? LIVING : DEAD;
}
}
'''),
varyings=['out_vert']
)
self.transform.uniforms['Width'].value = width
self.transform.uniforms['Height'].value = height
self.texture = self.ctx.texture((width, height), 1, pixels.tobytes(), floats=True)
self.texture.filter = ModernGL.NEAREST
self.texture.swizzle = 'RRR1'
self.texture.use()
self.vbo = self.ctx.buffer(canvas.tobytes())
self.vao = self.ctx.simple_vertex_array(self.prog, self.vbo, ['in_vert'])
self.text = self.ctx.buffer(grid.tobytes())
self.tao = self.ctx.simple_vertex_array(self.transform, self.text, ['in_text'])
self.pbo = self.ctx.buffer(reserve=pixels.nbytes)
def __init__(self, wnd):
self.wnd = wnd
self.ctx = ModernGL.create_context()
self.prog = self.ctx.program([
self.ctx.vertex_shader('''
#version 330
uniform mat4 Mvp;
in vec3 in_vert;
in vec3 in_norm;
in vec2 in_text;
out vec3 v_vert;
out vec3 v_norm;
out vec2 v_text;
void main() {
gl_Position = Mvp * vec4(in_vert, 1.0);
v_vert = in_vert;
v_norm = in_norm;
v_text = in_text;
}
'''),
self.ctx.fragment_shader('''
#version 330
uniform vec3 Light;
uniform vec3 Color;
uniform bool UseTexture;
uniform sampler2D Texture;
in vec3 v_vert;
in vec3 v_norm;
in vec2 v_text;
out vec4 f_color;
void main() {
float lum = clamp(dot(normalize(Light - v_vert), normalize(v_norm)), 0.0, 1.0) * 0.8 + 0.2;
if (UseTexture) {
f_color = vec4(texture(Texture, v_text).rgb * lum, 1.0);
} else {
f_color = vec4(Color * lum, 1.0);
}
}
'''),
])
self.mvp = self.prog.uniforms['Mvp']
self.light = self.prog.uniforms['Light']
self.color = self.prog.uniforms['Color']
self.use_texture = self.prog.uniforms['UseTexture']
self.objects = {}
for name in ['ground', 'grass', 'billboard', 'billboard-holder', 'billboard-image']:
obj = Obj.open(local('data', 'scene-1-%s.obj' % name))
vbo = self.ctx.buffer(obj.pack('vx vy vz nx ny nz tx ty'))
vao = self.ctx.simple_vertex_array(self.prog, vbo, ['in_vert', 'in_norm', 'in_text'])
self.objects[name] = vao
img = Image.open(local('data', 'infographic-1.jpg')).transpose(Image.FLIP_TOP_BOTTOM).convert('RGB')
self.texture = self.ctx.texture(img.size, 3, img.tobytes())
self.texture.build_mipmaps()
