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发明公开
CN101529474A 图像处理装置、图像处理装置的控制方法及信息存储介质 有权

图像处理装置、图像处理装置的控制方法及信息存储介质
摘要：
本发明提供一种图像处理装置，能够在减轻图像处理的负荷的情况下，达成对象表面的阴影表现，并且，可减轻使用者感到怪异。阴影处理执行部(62)，根据被贴图处理在对象表面的材质图像的各像素的伪法线向量，执行针对对象表面的阴影处理。阴影处理执行限制部(66)，根据从视点到对象的距离，来限制阴影处理执行部(62)所进行的阴影处理的执行。伪法线向量取得部(60)，存储将距视点的距离、与用以取得各像素的伪法线向量的伪法线向量信息对应起来形成的信息。然后，伪法线向量取得部(60)，根据从视点到对象的距离所对应的伪法线向量信息，取得各像素的伪法线向量。
摘要（英）：

The present invention provides an image processing device capable of attaining shade expression on a surface of an object while reducing image processing load, and of reducing a sense of discomfort which the user may feel. A shading process execution unit (62) executes a shading process on the surface of the object, based on a pseudo-normal vector for each pixel of a texture image to be mapped onto the surface of the object. A shading process execution restraining unit (66) restrains execution of the shading process by the shading process execution unit (62), based on the distance from a viewpoint to the object. A pseudo-normal vector obtaining unit (60) stores information correlating the distance from the viewpoint with pseudo-normal vector information for obtaining a pseudo-normal vector of each pixel. Then, the pseudo-normal vector obtaining unit (60) obtains a pseudo-normal vector of each pixel, based on the pseudo-normal vector information correlated to the distance from the viewpoint to the object.

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