Curve antialiasing based on curve-pixel intersection

In a digital medium graphics editing environment, a system comprising:

• an antialiasing module implemented at least partially in hardware of at least one computing device to:
• map an input curve from an original pixel space to a virtual pixel space that includes a higher pixel density than the original pixel space;
• identify virtual pixels from the virtual pixel space that are intersected by the mapped curve to aggregate a set of intersected virtual pixels;
• and
• generate a pixel coverage for original pixels of the original pixel space by sorting the intersected virtual pixels based on their positional correspondence to respective original pixels from the original pixel space;
• and
• a render module implemented at least partially in the hardware of the at least one computing device to apply the pixel coverage to a color value specified for the input curve in the original pixel space to generate an antialiased curve in the original pixel space.

One or more non-transitory computer-readable storage media having instructions stored thereon that, responsive to execution by a computing device, causes the computing device to perform operations comprising:

• mapping an input curve from an original pixel space to a virtual pixel space that includes a higher pixel density than the original pixel space;
• identifying virtual pixels from the virtual pixel space that are intersected by the mapped curve to aggregate a set of intersected virtual pixels, the set of intersected virtual pixels excluding at least some virtual pixels of the virtual pixel space;
• generating a pixel coverage for original pixels of the original pixel space by sorting the intersected virtual pixels based on their positional correspondence to respective original pixels from the original pixel space;
• and
• applying the pixel coverage to a color value specified for the input curve in the original pixel space to generate an antialiased curve in the original pixel space.