Abstract: Techniques for improved command level remoting are disclosed. In embodiments of the invention, commands to generate vertices are sent in a terminal service session. As commands to draw vertices are generated by a server to be sent to a client to display, they are analyzed by the server. Where some of those vertices have been previously sent to the client, such as to generate a previous bitmap image, the server determines not to send those vertices to the client, and sends the client the new vertices.

Abstract: Buffer display techniques are described. In one or more implementations, at least part of an off-screen buffer is rasterized by an application to generate an item for display by the computing device. One or more communications are formed that describe the part of the off-screen buffer which contains the item that is to be copied to update an onscreen buffer.

Abstract: Atlasing and virtual surface techniques are described. In one or more implementations, virtual surface functionality is exposed by an operating system for access by one or more applications of the computing device. A virtual surface is created in response to a request from the one or more applications to be used to render visuals for display by a display device. The virtual surface is allocated in memory of the computing device by the exposed virtual surface functionality to have an area that is larger than an area to be used to display the visuals from the one or more applications.

Abstract: Buffer display techniques are described. In one or more implementations, at least part of an off-screen buffer is rasterized by an application to generate an item for display by the computing device. One or more communications are formed that describe the part of the off-screen buffer which contains the item that is to be copied to update an onscreen buffer.

Abstract: Buffer display techniques are described. In one or more implementations, at least part of an off-screen buffer is rasterized by an application to generate an item for display by the computing device. One or more communications are formed that describe the part of the off-screen buffer which contains the item that is to be copied to update an onscreen buffer.

Abstract: Buffer display techniques are described. In one or more implementations, at least part of an off-screen buffer is rasterized by an application to generate an item for display by the computing device. One or more communications are formed that describe the part of the off-screen buffer which contains the item that is to be copied to update an onscreen buffer.

Abstract: Buffer display techniques are described. In one or more implementations, at least part of an off-screen buffer is rasterized by an application to generate an item for display by the computing device. One or more communications are formed that describe the part of the off-screen buffer which contains the item that is to be copied to update an onscreen buffer.

Abstract: Atlasing and virtual surface techniques are described. In one or more implementations, virtual surface functionality is exposed by an operating system for access by one or more applications of the computing device. A virtual surface is created in response to a request from the one or more applications to be used to render visuals for display by a display device. The virtual surface is allocated in memory of the computing device by the exposed virtual surface functionality to have an area that is larger than an area to be used to display the visuals from the one or more applications.

Abstract: Buffer display techniques are described. In one or more implementations, at least part of an off-screen buffer is rasterized by an application to generate an item for display by the computing device. One or more communications are formed that describe the part of the off-screen buffer which contains the item that is to be copied to update an onscreen buffer.

Abstract: A lighting model specified in light space may be transformed to a 3D scene, which may include numerous lights. When the lighting model is transformed to the 3D scene and is uniformly scaled or near-uniformly scaled, intensity or brightness of light at sample points, corresponding to points in the 3D scene, may be adjusted proportionately for a light source using a value based, at least partly, on a transform matrix. When the lighting model in the light space is scaled to non-uniformly stretch a lit area, the sample points may be transformed to the light space, using an inverse of a transform matrix. Distances from the light source to the transformed sample points in the light space may be used to determine attenuation and range with respect to the light source.

Abstract: Techniques for improved command level remoting are disclosed.

Abstract: Various technologies and techniques are disclosed that improve the automatic generation of near and far clipping planes for a 3D scene. The viewing frustum is intersected with the scene to determine the range of depth that a particular scene occupies in the viewing frustum. The ratio of the near clipping plane to far clipping plane is adjusted as appropriate to ensure a desired minimum level of Z-buffer precision is achieved. The clipping planes are set sufficiently far outside of the object bounds to prevent triangles which are parallel to the clip planes from being accidentally clipped. An API is provided to allow other programs to retrieve the near and far clipping plane values with the desired minimum Z-buffer precision for a particular scene without having to interact with the Z-buffer.

Abstract: A lighting model specified in light space may be transformed to a 3D scene, which may include numerous lights. When the lighting model is transformed to the 3D scene and is uniformly scaled or near-uniformly scaled, intensity or brightness of light at sample points, corresponding to points in the 3D scene, may be adjusted proportionately for a light source using a value based, at least partly, on a transform matrix. When the lighting model in the light space is scaled to non-uniformly stretch a lit area, the sample points may be transformed to the light space, using an inverse of a transform matrix. Distances from the light source to the transformed sample points in the light space may be used to determine attenuation and range with respect to the light source.