Radial gradient module

A method, comprising:

• determining a first grid of pixels of at least a portion of an image using a radial gradient module of a graphics computing device;
• determining a coarse grid of pixels based on the first grid of pixels using the radial gradient module, the coarse grid of pixels comprising a plurality of coarse pixels;
• determining one or more t-values of the first grid of pixels using the radial gradient module, the one or more t-values associated with radial gradient rendering;
• determining whether an edge formed by an ellipse associated with at least one t-value of the one or more t-values of the first grid of pixels has intersected the coarse grid of pixels using the radial gradient module;
• after determining that the edge formed by the ellipse has intersected the coarse grid of pixels, determining a fine grid of pixels based on the coarse grid of pixels and the edge formed by the ellipse, the fine grid of pixels comprising a plurality of fine pixels using the radial gradient module;
• determining a color value for each coarse pixel of the coarse grid of pixels based on the one or more t-values and a color value for each fine pixel of the fine grid of pixels using the radial gradient module, the color values based on the one or more t-values for the first grid of pixels;
• and
• generating an output of the radial gradient module based on the color values of both the coarse grid of pixels and the fine grid of pixels.

An article of manufacture comprising non-transitory data storage storing at least computer-readable instructions that, when executed by one or more processors of a graphics computing device, cause the graphics computing device to perform tasks comprising:

• determining a first grid of pixels of at least a portion of an image for radial gradient rendering;
• determining a coarse grid of pixels based on the first grid of pixels, the coarse grid of pixels comprising a plurality of coarse pixels;
• determining one or more t-values for the first grid of pixels, the one or more t-values associated with radial gradient rendering;
• determining whether an edge formed by an ellipse associated with at least one of the one or more t-values for the first grid of pixels has intersected the coarse grid of pixels;
• after determining that the edge formed by the ellipse has intersected the coarse grid of pixels, determining a fine grid of pixels based on the coarse grid of pixels and the edge formed by the ellipse, the fine grid of pixels comprising a plurality of fine pixels,
• determining a color value for each coarse pixel of the coarse grid of pixels and a color value for each fine pixel of the fine grid of pixels, the color values based on the one or more t-values for the first grid of pixels;
• and
• generating an output based on the color values of both the coarse grid of pixels and the fine grid of pixels.