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    • 2. 发明申请
    • Compositing two-dimensional and three-dimensional image layers
    • 合成二维和三维图像层
    • US20050001853A1
    • 2005-01-06
    • US10900752
    • 2004-07-27
    • Daniel O'DonnellJames AcquavellaDavid Simons
    • Daniel O'DonnellJames AcquavellaDavid Simons
    • G03C5/00G06T15/50G09G5/00G09G5/377
    • G06T15/503
    • Methods and apparatus, including computer program products, implementing and using techniques for generating a composite image from both two-dimensional (2D) image layers and three-dimensional (3D) image layers. In one embodiment, the image layers are arranged in a sequence in which a top 3D image layer is separated from a bottom 3D image layer by a 2D image layer and the image layers are rendered according to the sequence. In another embodiment, at least one of the image layers is associated with an adjustment layer, and rendering the composite image includes determining whether each current image layer has an associated adjustment layer with a dimensionality different from that of the current image layer, and if it does, applying the adjustment layer accordingly. In another embodiment, at least one of the image layers is associated with a track matte.
    • 方法和装置,包括计算机程序产品,用于从二维(2D)图像层和三维(3D)图像层产生合成图像的实现和使用技术。 在一个实施例中,图像层按照其中顶部3D图像层与2D图像层与底部3D图像层分离的顺序排列,并且根据该顺序渲染图像层。 在另一个实施例中,图像层中的至少一个与调整层相关联,并且渲染合成图像包括确定每个当前图像层是否具有与当前图像层的维度不同的维度的相关调整层,以及如果 相应地应用调整层。 在另一个实施例中,至少一个图像层与轨道磨砂相关联。
    • 3. 发明授权
    • Compositing two-dimensional and three-dimensional image layers
    • 合成二维和三维图像层
    • US07102652B2
    • 2006-09-05
    • US10900752
    • 2004-07-27
    • Daniel O'DonnellJames AcquavellaDavid P. Simons
    • Daniel O'DonnellJames AcquavellaDavid P. Simons
    • G06T15/00G09G5/00
    • G06T15/503
    • Methods and apparatus, including computer program products, implementing and using techniques for generating a composite image from both two-dimensional (2D) image layers and three-dimensional (3D) image layers. In one embodiment, the image layers are arranged in a sequence in which a top 3D image layer is separated from a bottom 3D image layer by a 2D image layer and the image layers are rendered according to the sequence. In another embodiment, at least one of the image layers is associated with an adjustment layer, and rendering the composite image includes determining whether each current image layer has an associated adjustment layer with a dimensionality different from that of the current image layer, and if it does, applying the adjustment layer accordingly. In another embodiment, at least one of the image layers is associated with a track matte.
    • 方法和装置,包括计算机程序产品,用于从二维(2D)图像层和三维(3D)图像层产生合成图像的实现和使用技术。 在一个实施例中,图像层按照其中顶部3D图像层与2D图像层与底部3D图像层分离的顺序排列,并且根据该顺序渲染图像层。 在另一个实施例中,图像层中的至少一个与调整层相关联,并且渲染合成图像包括确定每个当前图像层是否具有与当前图像层的维度不同的维度的相关调整层,以及如果 相应地应用调整层。 在另一个实施例中,至少一个图像层与轨道磨砂相关联。
    • 5. 发明授权
    • Compositing two-dimensional and 3-dimensional images
    • 合成二维和三维图像
    • US06809745B1
    • 2004-10-26
    • US09970157
    • 2001-10-01
    • Daniel O'DonnellJames AcquavellaDavid P. Simons
    • Daniel O'DonnellJames AcquavellaDavid P. Simons
    • G09G5377
    • G06T15/503
    • Methods and apparatus, including computer program products, implementing and using techniques for generating a composite image. Electronic data representing image layers to be combined in a composite image is provided. At least one of the image layers has two-dimensional content. At least one of the image layers has three-dimensional content. The layers are arranged in a composition sequence list. The image layers are grouped into metalayers including image layers with content of a common dimensionality. The metalayers are arranged in a metalayer sequence. A metalayer is selected according to the metalayer sequence and the image layers in the selected metalayer are processed to generate a raster representation of the image layers in the selected metalayer. The raster representation is composited into an image buffer and the process is repeated until the raster representation of each of the metalayers have been composited into the image buffer to form a composite image.
    • 方法和装置,包括计算机程序产品,用于生成合成图像的实现和使用技术。 提供表示要组合在合成图像中的图像层的电子数据。 至少一个图像层具有二维内容。 至少一个图像层具有三维内容。 这些层以组合顺序列表排列。 图像层被分组成金属层,包括具有共同维度内容的图像层。 金属层以金属层序列排列。 根据金属层序列选择金属层,并且处理所选择的金属层中的图像层以产生所选择的金属层中的图像层的光栅表示。 光栅表示被合成到图像缓冲器中,重复该过程,直到每个金属层的光栅表示被合成到图像缓冲器中以形成合成图像。
    • 10. 发明授权
    • Calculating shadow from area light sources using a spatially varying blur radius
    • 使用空间变化的模糊半径计算区域光源的阴影
    • US07817823B1
    • 2010-10-19
    • US11741554
    • 2007-04-27
    • Daniel O'Donnell
    • Daniel O'Donnell
    • G06K9/00G06T15/50
    • G06T15/60
    • Shadows from physical lights have a penumbra region, in which the light is only partially hidden from the shadow acceptor. The intensity of light in this region may be calculated using an approximation of the amount of light visible. For example a fragment or pixel shader program execution on a GPU may generate a shadow from a light source using the light intensities for each pixel being rendered. Per-pixel shadow density information may be projected from the shadow caster onto the shadow acceptor. A penumbra map may contain both depth information and light attenuation information for the shadow acceptor. This information may be blurred using a fragment or pixel shader on a GPU to determine an average shadow density for a pixel being rendered.
    • 来自物理灯的阴影具有半影区域,其中光仅部分地隐藏于阴影受体。 可以使用可见光的近似值来计算该区域中的光的强度。 例如,GPU上的片段或像素着色器程序执行可以使用所呈现的每个像素的光强度从光源产生阴影。 每像素阴影密度信息可以从阴影施法者投影到阴影受体上。 半影地图可以包含阴影受体的深度信息和光衰减信息。 可以使用GPU上的片段或像素着色器来模糊该信息,以确定正被渲染的像素的平均阴影密度。