starting to play with bitmapfilter in CircuitPython for Processing- / p5js-like effects

bitmapfilter_play1_code.py

# starting to play with bitmapfilter
# 31 Mar 2024 - @todbot / Tod Kurt
import time, math, random
import board
import vectorio
import displayio
import bitmaptools
import bitmapfilter

display = board.DISPLAY
display.auto_refresh = False
dw,dh = display.width, display.height
maingroup = displayio.Group()
display.root_group = maingroup

bitmap = displayio.Bitmap(dw, dh, 65535)
pixel_shader = displayio.ColorConverter(input_colorspace=displayio.Colorspace.RGB565_SWAPPED)
tile_grid = displayio.TileGrid(bitmap, pixel_shader=pixel_shader)
maingroup.append(tile_grid)

x,y = 0,0
last_time = 0

while True:
    for i in range(2):
        x = random.randint(0,dw-1)
        y = random.randint(0,dh-1)
        c = random.randint(0,65535)
        bitmaptools.draw_circle(bitmap, x, y, 7, c)
        bitmaptools.draw_circle(bitmap, x, y, 6, c)

    if time.monotonic() - last_time > 0.2:
        last_time = time.monotonic()
        bitmapfilter.morph(bitmap, (1, 2, 1, 2, 4, 2, 1, 2, 1) )  # 3x3 gaussian blur
        
    display.refresh()
                

Video demo: https://mastodon.social/@todbot/112197138537048342