Convert Png | To Sdf
# 4. Invert for distance calculation (Scipy treats '0' as foreground) # If your shape is white (1), invert it so shape is 0. shape = 1 - binary
Is your shape black on white or white on black? SDFs care about sign . If your output looks like a bump instead of a cavity, invert the image before processing. convert png to sdf
Standard SDFs struggle with sharp corners (like the tip of a star). If you need perfect vector quality, look into MSDF (Multi-channel SDF). Converting PNG to MSDF requires specialized tools like msdfgen . The Result: Perfect Scaling Once converted, you can render your SDF in a shader like this (GLSL snippet): SDFs care about sign
# 6. Normalize SDF to 0-255 range for storage sdf_normalized = (dt / dt.max()) * 255 sdf_normalized = sdf_normalized.astype(np.uint8) If you need perfect vector quality, look into