公开(公告)号：US20060146058A1

公开(公告)日：2006-07-06

申请号：US11027752

申请日：2004-12-30

申请人： Hansong Zhang ,  David Shreiner

发明人： Hansong Zhang ,  David Shreiner

IPC分类号： G09G5/39

CPC分类号： G06F13/102 ,  G06F3/14

摘要： A method and apparatus forward a hardware call from a driver to graphics hardware via a virtual connection. Specifically, the method and apparatus process graphical data in a system having the driver, which produces a hardware call for the controlling the operation of the graphics hardware. As noted above, the method and apparatus first establish the virtual connection between the driver and the graphics hardware. Next, the hardware call is forwarded to the graphics hardware via the virtual connection.

摘要翻译： 一种方法和装置，通过虚拟连接将硬件调用从驱动程序转发到图形硬件。 具体地，该方法和装置处理具有驱动器的系统中的图形数据，其产生用于控制图形硬件的操作的硬件调用。 如上所述，该方法和装置首先建立驱动程序和图形硬件之间的虚拟连接。 接下来，通过虚拟连接将硬件调用转发到图形硬件。

公开(公告)号：US07027046B2

公开(公告)日：2006-04-11

申请号：US09923398

申请日：2001-08-08

申请人： Hansong Zhang

发明人： Hansong Zhang

IPC分类号： G06T15/00

CPC分类号： G06T17/05 ,  G06T15/40

摘要： A method, system, and computer program product are provided for visibility culling of terrain. A height field is perspective modulated. An occlusion height field is generated based on an orthographic height propagation of the perspective modulated height field. Graphics data is culled based on the generated occlusion height field. Texturing and blending operations can be used to accelerate the perspective modulation. A perspective modulation disk is used to modulate the first height field along radial slices from a viewpoint. Texture from a one-dimensional texture with distance values is mapped to the radial slices to obtain the perspective modulated height field. Generating an occlusion height field can also be carried out using texturing and blending and can be hardware-accelerated. According to a further feature, a shift disk or shift texture is used.

公开(公告)号：US07716683B2

公开(公告)日：2010-05-11

申请号：US11027752

申请日：2004-12-30

申请人： Hansong Zhang ,  David Shreiner

发明人： Hansong Zhang ,  David Shreiner

IPC分类号： G06F9/44 ,  G09G5/39

CPC分类号： G06F13/102 ,  G06F3/14

摘要： A method and apparatus forward a hardware call from a driver to graphics hardware via a virtual connection. Specifically, the method and apparatus process graphical data in a system having the driver, which produces a hardware call for the controlling the operation of the graphics hardware. As noted above, the method and apparatus first establish the virtual connection between the driver and the graphics hardware. Next, the hardware call is forwarded to the graphics hardware via the virtual connection.

摘要翻译： 一种方法和装置，通过虚拟连接将硬件调用从驱动程序转发到图形硬件。 具体地，该方法和装置处理具有驱动器的系统中的图形数据，其产生用于控制图形硬件的操作的硬件调用。 如上所述，该方法和装置首先建立驱动程序和图形硬件之间的虚拟连接。 接下来，通过虚拟连接将硬件调用转发到图形硬件。

公开(公告)号：US07385614B2

公开(公告)日：2008-06-10

申请号：US11091237

申请日：2005-03-28

申请人： Hansong Zhang

发明人： Hansong Zhang

IPC分类号： G09G5/00

CPC分类号： G06T15/10 ,  G06T2210/52

摘要： An apparatus and method of processing object data (e.g., a scene having one or more objects) logically divide the object space into a plurality of contiguous (or noncontiguous) portions. At least two portions each have object data for such object(s). The apparatus and method also determine a positional priority of the at least two portions of the object space for a given viewpoint. Next, the apparatus and method merge rendered object data after at least some of the object data is rendered. This merging is based upon the positional priority of the at least two portions.

摘要翻译： 处理对象数据（例如，具有一个或多个对象的场景）的装置和方法将对象空间逻辑地划分为多个连续（或不连续）部分。 每个至少两个部分具有这样的对象的对象数据。 装置和方法还确定对于给定视点的对象空间的至少两个部分的位置优先级。 接下来，在呈现至少一些对象数据之后，该装置和方法合并呈现的对象数据。 该合并基于至少两个部分的位置优先级。

公开(公告)号：US20060214949A1

公开(公告)日：2006-09-28

申请号：US11091237

申请日：2005-03-28

申请人： Hansong Zhang

发明人： Hansong Zhang

IPC分类号： G09G5/00

CPC分类号： G06T15/10 ,  G06T2210/52

摘要： An apparatus and method of processing object data (e.g., a scene having one or more objects) logically divide the object space into a plurality of contiguous (or noncontiguous) portions. At least two portions each have object data for such object(s). The apparatus and method also determine a positional priority of the at least two portions of the object space for a given viewpoint. Next, the apparatus and method merge rendered object data after at least some of the object data is rendered. This merging is based upon the positional priority of the at least two portions.

摘要翻译： 处理对象数据（例如，具有一个或多个对象的场景）的装置和方法将对象空间逻辑地划分为多个连续（或不连续）部分。 每个至少两个部分具有这样的对象的对象数据。 装置和方法还确定对于给定视点的对象空间的至少两个部分的位置优先级。 接下来，在呈现至少一些对象数据之后，该装置和方法合并呈现的对象数据。 该合并基于至少两个部分的位置优先级。