def __init__(self):
# Window parameters
self.WIDTH = 800
self.HEIGHT = 600
# LED parameters
self.LED_WIDTH = 5
self.LED_SPACING = 5
# Number of LEDs on each wall
self.LEFT_WALL = self.HEIGHT / (self.LED_WIDTH + self.LED_SPACING)
self.RIGHT_WALL = self.LEFT_WALL
self.TOP_WALL = self.WIDTH / (self.LED_WIDTH + self.LED_SPACING)
# The window doing the rendering
self.wnd = glwindow.window((800, 600))
# The context that we write to
self.ctx = moderngl.create_context()
def getPos(i):
"""
Calculates the position of the LED as an (x,y) coordinate, where x
and y belong to (-1,1).
Parameters:
i Ranges from 0 to 1 and represents how far the desired
LED is along the strip
"""
if i < 1/3.0:
# Left wall
return (-0.9, (6*i - 1)*0.95)
elif i < 2/3.0:
# Top wall
return (((i - 1/3.0) * 6 - 1)*0.9, 0.95)
else:
# Right wall
return (0.9, ((2/3.0 - i) * 6 + 1)*0.95)
# Init LED objects
n = rendering_conf.NUM_PIXELS # More concise
self.leds = [_LED(self.ctx, getPos(i/n), self.LED_WIDTH)
for i in range(n)]
gl_Position.y *= -1.0;
}
'''),
fragment_shader=glsl('''
#version 450
#pragma shader_stage(fragment)
layout (location = 0) in vec4 in_color;
layout (location = 0) out vec4 out_color;
void main() {
out_color = in_color;
}
'''),
vertex_count=3,
)
wnd_1 = glwindow.window((512, 512), 'Window 1')
wnd_2 = glwindow.window((512, 512), 'Window 2')
wnd_1.show(True)
wnd_2.show(True)
instance.surface(wnd_1.handle, framebuffer.output[0])
instance.surface(wnd_2.handle, framebuffer.output[0])
while wnd_1.visible or wnd_2.visible:
glwindow.update()
task.run()
instance.present()
void main() {
gl_Position = vec4(positions[gl_VertexIndex], 0.0, 1.0);
out_color = colors[gl_VertexIndex];
gl_Position.y *= -1.0;
}
'''),
fragment_shader=glsl('''
#version 450
#pragma shader_stage(fragment)
layout (location = 0) in vec4 in_color;
layout (location = 0) out vec4 out_color;
void main() {
out_color = in_color;
}
'''),
vertex_count=3,
)
wnd = glwindow.window((512, 512))
wnd.show(True)
instance.surface(wnd.handle, framebuffer.output[0])
while wnd.visible:
glwindow.update()
task.run()
instance.present()
import glwindow
import moderngl as mgl
import numpy as np
wnd = glwindow.window((840, 480))
ctx = mgl.create_context()
prog = ctx.program(
vertex_shader='''
#version 140
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 140
in vec4 frag_color;
out vec4 color;
void main() {
color = vec4(frag_color);
}
''',
)