TECHNIQUE FOR MAPPING A TEXTURE ONTO A THREE-DIMENSIONAL MODEL

摘要

A stroke parameterization engine within a rendering engine is configured to map a texture to the surface of a three-dimensional (3D) model along a stroke defined by an end-user of the rendering engine. The stroke parameterization engine converts the stroke to a polyline, then generates a geodesic trace by sliding a geodesic circle along the polyline and collecting points associated with the 3D model that fall within the geodesic circle. The stroke parameterization engine then parameterizes points associated with the polyline and the geodesic trace using UV coordinates associated with a texture map, thereby generating UV coordinates for each point within the polyline and geodesic trace. The stroke parameterization engine then projects the texture map onto the surface of the 3D model using the UV coordinates generated for the polyline and geodesic trace.

主权项

1. A computer-implemented method for projecting a texture map onto a three-dimensional (3D) model, the method comprising:
generating a polyline that includes a first plurality of points that resides along a stroke path defined across a surface region of the 3D model; generating a geodesic trace that includes a second plurality of points that resides within a threshold distance of the polyline; generating a UV coordinate for each point included in the first plurality of points and for each point included in the second plurality of points; and projecting the texture map onto the surface region of the 3D model according to the UV coordinates for each point included in the first plurality of points and the UV coordinates for each point included in the second plurality of points.