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# Example of creating a window without
# enclosing code in modengl_window.WindowConfig class
# Description: This example shows how to create a window as a separate object.
# Note: Only one window can be used.
import moderngl as gl
import moderngl_window as glw
import struct
# Create window
window_cls = glw.get_local_window_cls('pyglet')
window = window_cls(
size=(1024, 512), fullscreen=False, title='Separate window',
resizable=False, vsync=True, gl_version=(3, 3))
ctx = window.ctx
glw.activate_context(window, ctx=ctx)
window.clear()
window.swap_buffers()
# Window prog
prog = ctx.program(
vertex_shader='''
#version 330
in vec3 in_vert;
in vec4 in_color;
uniform mat4 prj;
out vec4 o_color;
void main() {
gl_Position = prj*vec4(in_vert.xyz, 1.0);
o_color = in_color;
}
''',
fragment_shader='''
#version 330
in vec4 o_color;
out vec4 f_color;
void main() {
f_color = o_color;
}
''')
# Preparing
content = [
.3, .3, -.5, 1, 0, 0, 1,
.3, -.3, -.5, 1, 0, 0, 1,
-.3, .3, -.4, 1, 0, 0, 1,
.3, .4, -.5, 0, 0, 1, 1,
.3, -.2, -.5, 0, 0, 1, 1,
-.3, .4, -.45, 0, 0, 1, 1
]
buf = ctx.buffer(struct.pack(f'{len(content)}f', *content))
vao = ctx.vertex_array(prog, buf, 'in_vert', 'in_color')
f = 1
n = 0.1
prj = (
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, -(f+n)/(f-n), -1,
0, 0, -(2*f*n)/(f-n), 0
)
vao.program['prj'] = prj
# Render loop
ctx.enable(gl.DEPTH_TEST)
while not window.is_closing:
window.fbo.use()
window.fbo.clear()
vao.render()
window.swap_buffers()
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