Depth of Field Rasterization

摘要

Depth of field may be rasterized by culling half-space regions on a lens from which a triangle to be rendered is not visible. Then, inside tests are only performed on the remaining unculled half-space regions. Separating planes between the triangle to be rendered and the tile being processed can be used to define the half-space regions.

主权项

1. A method of depth of field rasterization comprising:
parameterizing a lens area, having regions, based on its shape; identifying lens regions in which a convex polygon to be rendered is not visible; and culling, using a graphics processor, regions on a lens from which a convex polygon to be rendered is not visible.