Release NaraMotion v0.26.0: Structure of Arrays (SoA), Path Arena Allocator, Uniform Grid Indexing, Dual-Buffer Rendering & Centroid Spring Pop-in
b516e00 verified | """ | |
| NaraMotion Example 06: Composition and Blending Modes | |
| """ | |
| import os | |
| from naramotion import Image, Context, Format, CompOp, Font | |
| def get_font(): | |
| for p in ["C:\\Windows\\Fonts\\segoeui.ttf", "C:\\Windows\\Fonts\\arial.ttf"]: | |
| if os.path.exists(p): | |
| return p | |
| return None | |
| def main(): | |
| width, height = 900, 600 | |
| img = Image(width, height, Format.PRGB32) | |
| modes = [ | |
| ("SrcOver", CompOp.SRC_OVER), | |
| ("Difference", CompOp.DIFFERENCE), | |
| ("Multiply", CompOp.MULTIPLY), | |
| ("Screen", CompOp.SCREEN), | |
| ("Overlay", CompOp.OVERLAY), | |
| ("Xor", CompOp.XOR), | |
| ] | |
| with Context(img) as ctx: | |
| ctx.fill_all("#18181B") | |
| font_path = get_font() | |
| font = Font.from_file(font_path, 18.0) if font_path else None | |
| cols = 3 | |
| cell_w, cell_h = 280, 260 | |
| margin_x, margin_y = 30, 20 | |
| for idx, (name, op) in enumerate(modes): | |
| r = idx // cols | |
| c = idx % cols | |
| ox = margin_x + c * cell_w | |
| oy = margin_y + r * cell_h | |
| # Label | |
| if font: | |
| ctx.fill_text(ox + 20, oy + 30, font, name, "#E4E4E7") | |
| # Draw overlapping blending circles | |
| with ctx.push_state(): | |
| ctx.comp_op = op | |
| ctx.fill_circle(ox + 80, oy + 120, 50, "#EF4444CC") | |
| ctx.fill_circle(ox + 130, oy + 120, 50, "#10B981CC") | |
| ctx.fill_circle(ox + 105, oy + 170, 50, "#3B82F6CC") | |
| os.makedirs("output", exist_ok=True) | |
| out_file = "output/06_composite_ops.png" | |
| img.write_to_file(out_file) | |
| print(f"Saved: {out_file}") | |
| if __name__ == "__main__": | |
| main() | |