mirror of
https://github.com/maziggy/bambuddy.git
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maziggy
e4999f48fb
New splash shows only the SpoolBuddy logo with green glow bloom, radial gradient, light rays, and vignette. Removed Bambuddy branding. Includes generator script for easy customization. Defers initramfs rebuild during install until after Plymouth theme is configured, avoiding redundant rebuilds from apt hooks.
225 lines
7.6 KiB
Python
225 lines
7.6 KiB
Python
#!/usr/bin/env python3
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"""Generate a polished SpoolBuddy boot splash image (1024x600).
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Uses the SpoolBuddy logo with baked-in glow, radial gradient background,
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subtle light rays, and vignette effects for a premium kiosk boot screen.
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Usage:
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python3 generate_splash.py [output_path]
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Requires: Pillow (pip install Pillow)
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"""
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import math
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import os
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import sys
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from PIL import Image, ImageDraw, ImageFilter
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# --- Configuration ---
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WIDTH, HEIGHT = 1024, 600
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BG_CENTER = (55, 55, 55) # Notably lighter center
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BG_EDGE = (2, 2, 2) # Nearly black edges
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ACCENT = (0, 200, 75) # Brighter SpoolBuddy green
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ACCENT_GLOW = (0, 255, 100) # Vivid glow core
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LOGO_SCALE = 0.50 # Scale logo to 50% of canvas width
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GLOW_RADIUS = 160 # Very wide glow spread
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VIGNETTE_STRENGTH = 0.85 # Heavy edge darkening
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RAY_COUNT = 32 # More radial light rays
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RAY_OPACITY = 50 # Clearly visible rays (0-255)
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def radial_gradient(size, center_color, edge_color):
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"""Create a radial gradient from center to edges."""
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w, h = size
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img = Image.new("RGB", size)
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pixels = img.load()
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cx, cy = w // 2, h // 2
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max_dist = math.sqrt(cx**2 + cy**2)
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for y in range(h):
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for x in range(w):
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dist = math.sqrt((x - cx) ** 2 + (y - cy) ** 2)
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t = min(dist / max_dist, 1.0)
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# Ease-out curve for smoother falloff
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t = t * t
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r = int(center_color[0] + (edge_color[0] - center_color[0]) * t)
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g = int(center_color[1] + (edge_color[1] - center_color[1]) * t)
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b = int(center_color[2] + (edge_color[2] - center_color[2]) * t)
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pixels[x, y] = (r, g, b)
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return img
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def create_light_rays(size, num_rays, opacity):
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"""Create subtle radial light rays emanating from center."""
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w, h = size
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rays = Image.new("RGBA", size, (0, 0, 0, 0))
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draw = ImageDraw.Draw(rays)
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cx, cy = w // 2, h // 2
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max_radius = int(math.sqrt(cx**2 + cy**2)) + 50
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for i in range(num_rays):
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angle = (2 * math.pi * i) / num_rays
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# Vary ray width slightly for organic feel
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half_width = math.radians(1.5 + (i % 3) * 0.5)
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a1 = angle - half_width
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a2 = angle + half_width
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points = [
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(cx, cy),
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(cx + int(max_radius * math.cos(a1)), cy + int(max_radius * math.sin(a1))),
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(cx + int(max_radius * math.cos(a2)), cy + int(max_radius * math.sin(a2))),
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]
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# Green-tinted rays
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draw.polygon(points, fill=(ACCENT[0], ACCENT[1], ACCENT[2], opacity))
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# Heavy blur to make rays soft and diffuse
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rays = rays.filter(ImageFilter.GaussianBlur(radius=30))
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return rays
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def create_vignette(size, strength):
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"""Create a vignette (edge darkening) mask."""
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w, h = size
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vignette = Image.new("L", size, 255)
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pixels = vignette.load()
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cx, cy = w / 2, h / 2
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max_dist = math.sqrt(cx**2 + cy**2)
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for y in range(h):
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for x in range(w):
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dist = math.sqrt((x - cx) ** 2 + (y - cy) ** 2)
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t = dist / max_dist
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# Ramp darkening from ~40% radius outward
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fade = max(0, (t - 0.4) / 0.6)
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fade = fade * fade # Quadratic ease
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val = int(255 * (1 - fade * strength))
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pixels[x, y] = max(0, val)
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return vignette
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def create_glow(logo_img, color, radius, intensity=1.5):
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"""Create a colored glow effect from a logo's alpha channel."""
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# Extract alpha as the glow shape
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if logo_img.mode != "RGBA":
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return Image.new("RGBA", logo_img.size, (0, 0, 0, 0))
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alpha = logo_img.split()[3]
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# Create colored version of the alpha shape
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glow = Image.new("RGBA", logo_img.size, (0, 0, 0, 0))
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glow_pixels = glow.load()
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alpha_pixels = alpha.load()
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for y in range(logo_img.height):
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for x in range(logo_img.width):
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a = alpha_pixels[x, y]
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if a > 0:
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boosted = min(255, int(a * intensity))
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glow_pixels[x, y] = (color[0], color[1], color[2], boosted)
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# Blur to create the glow spread
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glow = glow.filter(ImageFilter.GaussianBlur(radius=radius))
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return glow
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def generate_splash(output_path):
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"""Generate the final splash image."""
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print(f"Generating {WIDTH}x{HEIGHT} splash image...")
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# 1. Radial gradient background
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print(" Creating radial gradient background...")
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canvas = radial_gradient((WIDTH, HEIGHT), BG_CENTER, BG_EDGE)
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# 2. Light rays
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print(" Adding light rays...")
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rays = create_light_rays((WIDTH, HEIGHT), RAY_COUNT, RAY_OPACITY)
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canvas.paste(
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Image.alpha_composite(
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Image.new("RGBA", (WIDTH, HEIGHT), (0, 0, 0, 0)),
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rays,
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),
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(0, 0),
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rays,
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)
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# 3. Load and scale logo
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print(" Loading SpoolBuddy logo...")
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script_dir = os.path.dirname(os.path.abspath(__file__))
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logo_paths = [
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os.path.join(script_dir, "..", "..", "frontend", "public", "spoolbuddy_logo_dark.png"),
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os.path.join(script_dir, "..", "..", "frontend", "public", "img", "spoolbuddy_logo_dark.png"),
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]
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logo = None
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for p in logo_paths:
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resolved = os.path.normpath(p)
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if os.path.exists(resolved):
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logo = Image.open(resolved).convert("RGBA")
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print(f" Loaded logo from {resolved}")
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break
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if logo is None:
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print(" ERROR: Could not find spoolbuddy_logo_dark.png")
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sys.exit(1)
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# Scale logo to target width
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target_w = int(WIDTH * LOGO_SCALE)
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scale = target_w / logo.width
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target_h = int(logo.height * scale)
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logo = logo.resize((target_w, target_h), Image.LANCZOS)
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# Center position (shift up slightly for visual balance)
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logo_x = (WIDTH - target_w) // 2
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logo_y = (HEIGHT - target_h) // 2 - 10
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# 4. Glow behind logo (two layers: wide diffuse + tight bright)
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print(" Rendering glow effects...")
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# Wide diffuse glow — very prominent
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glow_wide = create_glow(logo, ACCENT, radius=GLOW_RADIUS, intensity=3.0)
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glow_canvas = Image.new("RGBA", (WIDTH, HEIGHT), (0, 0, 0, 0))
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glow_canvas.paste(glow_wide, (logo_x, logo_y), glow_wide)
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canvas = Image.alpha_composite(canvas.convert("RGBA"), glow_canvas)
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# Medium glow layer for extra punch
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glow_mid = create_glow(logo, ACCENT_GLOW, radius=GLOW_RADIUS // 2, intensity=2.5)
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glow_canvas_mid = Image.new("RGBA", (WIDTH, HEIGHT), (0, 0, 0, 0))
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glow_canvas_mid.paste(glow_mid, (logo_x, logo_y), glow_mid)
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canvas = Image.alpha_composite(canvas, glow_canvas_mid)
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# Tighter bright glow core
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glow_tight = create_glow(logo, ACCENT_GLOW, radius=GLOW_RADIUS // 4, intensity=2.0)
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glow_canvas2 = Image.new("RGBA", (WIDTH, HEIGHT), (0, 0, 0, 0))
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glow_canvas2.paste(glow_tight, (logo_x, logo_y), glow_tight)
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canvas = Image.alpha_composite(canvas, glow_canvas2)
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# 5. Composite logo on top
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print(" Compositing logo...")
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canvas.paste(logo, (logo_x, logo_y), logo)
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# 6. Apply vignette
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print(" Applying vignette...")
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vignette = create_vignette((WIDTH, HEIGHT), VIGNETTE_STRENGTH)
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canvas_rgb = canvas.convert("RGB")
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# Multiply canvas by vignette mask
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r, g, b = canvas_rgb.split()
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r = Image.composite(r, Image.new("L", (WIDTH, HEIGHT), 0), vignette)
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g = Image.composite(g, Image.new("L", (WIDTH, HEIGHT), 0), vignette)
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b = Image.composite(b, Image.new("L", (WIDTH, HEIGHT), 0), vignette)
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canvas = Image.merge("RGB", (r, g, b))
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# 7. Save
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canvas.save(output_path, "PNG", optimize=True)
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file_size = os.path.getsize(output_path) / 1024
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print(f" Saved to {output_path} ({file_size:.0f} KB)")
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if __name__ == "__main__":
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out = sys.argv[1] if len(sys.argv) > 1 else os.path.join(os.path.dirname(os.path.abspath(__file__)), "splash.png")
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generate_splash(out)
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