def run_example(example, size, title):
if title is None:
title = '%s - %s - %s' % (example.__name__, 'ModernGL', 'GLWindow')
if size == 'fullscreen':
wnd = GLWindow.create_window(fullscreen=True, title=title)
else:
wnd = GLWindow.create_window(size, title=title)
app = example(WindowData(wnd))
while wnd.update():
app.render()
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)
import struct
import GLWindow
import ModernGL
from PIL import Image, ImageDraw, ImageFont
# Window & Context
wnd = GLWindow.create_window()
ctx = ModernGL.create_context()
# Using Pillow to create a Texture
font = ImageFont.truetype('../data/OpenSans-Regular.ttf', 120)
msg = 'Hello World!'
msg_size = font.getsize(msg)
im = Image.new('RGBA', msg_size, (0, 0, 0, 0))
draw = ImageDraw.Draw(im)
draw.text((1, 0), msg, font=font, fill=(0, 0, 0, 255))
del draw
tex = ctx.texture(im.size, 4, im.tobytes())
tex.use()
# Shaders & Program
prog = ctx.program([
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 struct
import numpy
import GLWindow
import ModernGL
# This example is not working with NPOT Textures
pixels = numpy.round(numpy.random.rand(512, 512)).astype('float32')
grid = numpy.dstack(numpy.mgrid[0:512, 0:512][::-1] / 512).astype('float32')
wnd = GLWindow.create_window(512, 512)
ctx = ModernGL.create_context()
prog = ctx.program(
ctx.vertex_shader('''
#version 330
in vec2 vert;
out vec2 text;
void main() {
text = vert;
gl_Position = vec4((vert * 2.0 - 1.0) * 1, 0.0, 1.0);
}
'''),
ctx.fragment_shader('''
#version 330
uniform sampler2D Texture;
import struct
import numpy
import GLWindow
import ModernGL
# This example is not working with NPOT Textures
width, height = 640, 460
pixels = numpy.round(numpy.random.rand(width, height)).astype('float32')
grid = numpy.dstack(numpy.mgrid[0:height, 0:width][::-1]).astype('int32')
wnd = GLWindow.create_window(width, height)
ctx = ModernGL.create_context()
prog = ctx.program(
ctx.vertex_shader('''
#version 330
in vec2 vert;
out vec2 text;
void main() {
text = vert;
gl_Position = vec4((vert * 2.0 - 1.0) * 1, 0.0, 1.0);
}
'''),
ctx.fragment_shader('''
#version 330