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example_task.py
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example_task.py
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# Copyright (c) 2023 Loreno Heer.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import math
import moderngl_window
import random
import moderngl
import numpy as np
import logging
import csv
from pathlib import Path
from moderngl_window import resources
from moderngl_window.utils.scheduler import Scheduler
## BUGFIX resource handling in moderngl_window library
from moderngl_window.opengl.program import *
import re
def handle_includes(self, load_source_func, depth=0, source_id=0):
"""Inject includes into the shader source.
This happens recursively up to a max level in case the users has
circular includes. We also build up a list of all the included
sources in the root shader.
Args:
load_source_func (func): A function for finding and loading a source
depth (int): The current include depth (increase by 1 for every call)
"""
if depth > 100:
raise ShaderError(
"Reaching an include depth of 100. You probably have circular includes"
)
current_id = source_id
while True:
for nr, line in enumerate(self._lines):
line = line.strip()
if line.startswith("#include"):
path = re.search(r'#include\s+"?([^"]+)',line)[1]
current_id += 1
_, source = load_source_func(path)
source = ShaderSource(
None,
path,
source,
defines=self._defines,
id=current_id,
root=False,
)
source.handle_includes(
load_source_func, depth=depth + 1, source_id=current_id
)
self._lines = self.lines[:nr] + source.lines + self.lines[nr + 1:]
self._source_list += source.source_list
current_id = self._source_list[-1].id
break
else:
break
# monkey patch
moderngl_window.opengl.program.ShaderSource.handle_includes = handle_includes
MAX_SAMPLES = 10
global part_id
global session_id
class VisualSnowSim(moderngl_window.WindowConfig):
"""
Demonstrates handling mouse, keyboard, render and resize events
"""
gl_version = (3, 3)
title = "Visual Snow Simulator"
cursor = False
vsync = True
fullscreen = True
aspect_ratio = None
#log_level = logging.DEBUG
# Workaround for incomlete include handling in moderngl_window
resources.register_program_dir((Path(__file__) / '../shaders/lygia/math').resolve())
resources.register_program_dir((Path(__file__) / '../shaders/lygia/generative').resolve())
resources.register_program_dir((Path(__file__) / '../shaders').resolve())
def __init__(self, **kwargs):
super().__init__(**kwargs)
# self.wnd.exit_key = None
self.part_id = part_id
self.session_id = session_id
self.outfile_name = "sampledata-" + self.part_id + "-" + self.session_id + ".csv"
with open(self.outfile_name, 'w', newline='') as file:
writer = csv.writer(file)
writer.writerow(["Participant ID", "Session ID", "Noisetype", "Brightness", "Cutoff", "Size"])
self.scheduler = Scheduler(self.timer)
self.prog = self.load_program('snowshader.glsl')
vertices = np.array([-1.0, -1.0, -1.0, 1.0, 1.0, -1.0, 1.0, 1.0])
self.vbo = self.ctx.buffer(vertices.astype('f4'))
self.vao = self.ctx.vertex_array(self.prog,self.vbo, 'in_vert')
u_size = self.prog['u_size']
u_size.value = 1.0
u_bright = self.prog['u_bright']
u_bright.value = 0.0
u_noisetype = self.prog['u_noisetype']
u_noisetype.value = 1
u_cutoff = self.prog['u_cutoff']
u_cutoff.value = 0.9
self.samples_count = 0
self.brightness_change_event = self.scheduler.run_every(self.change_brightness, 0.01)
def change_brightness(self):
u_bright = self.prog['u_bright']
u_bright.value = min(u_bright.value + 0.0001,1.0)
if u_bright.value == 1.0:
self.scheduler.cancel(self.color_changing_event)
def render(self, time: float, frametime: float):
self.scheduler.execute()
u_time = self.prog["u_time"]
u_time.value = time
# need to pass resolution. use window size (which is probably wrong but should not matter in full screen)
u_resolution = self.prog["u_resolution"]
u_resolution.value = self.window_size
self.ctx.clear(0.0,0.0,0.0)
self.vao.render(moderngl.TRIANGLE_STRIP)
def print_noisesettings(self):
u_noisetype = self.prog['u_noisetype']
u_size = self.prog['u_size']
u_bright = self.prog['u_bright']
u_cutoff = self.prog['u_cutoff']
print("Noisetype: ", u_noisetype.value)
print("Noise Size: ", u_size.value)
print("Brightness: ", u_bright.value)
print("Cutoff value: ", u_cutoff.value)
def key_event(self, key, action, modifiers):
keys = self.wnd.keys
if action == keys.ACTION_PRESS:
if key == keys.SPACE:
print("Space key pressed")
self.print_noisesettings()
self.scheduler.cancel(self.brightness_change_event)
with open(self.outfile_name, 'a', newline='') as file:
writer = csv.writer(file)
writer.writerow([self.part_id, self.session_id, str(self.prog['u_noisetype'].value), str(self.prog['u_bright'].value), str(self.prog['u_cutoff'].value), str(self.prog['u_size'].value)])
self.prog['u_bright'].value = 0.0
self.samples_count = self.samples_count + 1
if self.samples_count == MAX_SAMPLES:
self.close()
else:
self.brightness_change_event = self.scheduler.run_every(self.change_brightness, 0.01)
if __name__ == '__main__':
print("Press the SPACE key whenever you can see noise (different from own visual snow) appear on the screen")
part_id = input("Participant ID: ")
session_id = input("Session ID: ")
moderngl_window.run_window_config(VisualSnowSim)