公开(公告)号：US20040257365A1

公开(公告)日：2004-12-23

申请号：US10811481

申请日：2004-03-26

Applicant: STMicroelectronics Limited

Inventor： Mathieu Robart

IPC: G06T015/60

CPC classification number: G06T15/60

Abstract: An image is rendered which includes at least one light source, a first, shadow-casting object with a second, shadow-receiving object located on the side of the first shadow-casting object remote from said at least one light source. A shadow mask is generated which identifies for each of a plurality of pixels on the shadow receiving surface a grey level representing the intensity of shadow in each pixel. The intensity is determined utilizing the distance between the shadow-casting object and the shadow-receiving object.

Abstract translation: 渲染图像，其包括至少一个光源，第一阴影投射对象，其具有位于远离所述至少一个光源的第一阴影投射对象的一侧上的第二影子接收对象。 产生阴影掩模，其对阴影接收表面上的多个像素中的每一个识别代表每个像素中的阴影强度的灰度级。 使用阴影投射对象和阴影接收对象之间的距离来确定强度。