<p>Shadows are rendered automatically with a hand-painted appearance. The shadow region is divided into a core and a penumbra. A core perturbation zone is defined between the core and penumbra and a penumbra perturbation zone is defined between the penumbra and an unshadowed region. Within each perturbation zone, a texture is applied to each pixel to map the pixel as being inside or outside the core or penumbra boundary, thereby defining a displaced core boundary and a displaced penumbra boundary. The displaced boundaries can be non-linear and discontinuous. When shadows are rendered using the displaced boundaries, a hand-painted appearance can result. An additional texture can be applied in the penumbra to further enhance the painted appearance.</p>
申请公布号
WO2009018050(A1)
申请公布日期
2009.02.05
申请号
WO2008US70877
申请日期
2008.07.23
申请人
DISNEY ENTERPRISES, INC.;SIEGEL, LEWIS, N.;SPRINGFIELD, CHRISTOPHER, D.;MILES, ROBERT, L.;LUSINSKY, DONALD ADOLPH
发明人
SIEGEL, LEWIS, N.;SPRINGFIELD, CHRISTOPHER, D.;MILES, ROBERT, L.;LUSINSKY, DONALD ADOLPH