73results about How to "Efficient rendering" patented technology

The invention discloses a three-dimensional kidney neoplasm surgery simulation method and a platform based on a computed tomography (CT) film. The method includes that firstly, a data base including object resources is built, multiple manners including CT film scanning are inputted into a CT faultage image, a sequence image is registered according to the sequence based on an outline gradient principle, a registered CT image is utilized to reconstruct segmentation tissue of an arterial phase, a venous phase and a lag phase by adopting of a three-dimensional reconstruction technology, and the segmentation tissue of the arterial phase, the venous phase and the lag phase are effectively fused in the same coordinate space. According to an imaging staging criteria and a treatment guideline of kidney neoplasm, and based on modeling results, various peration plan designing, operation stimulation, surgical risk analysis and response, and prognostic analysis are carried out, a personalized and benefit maximization treatment plan can be provided for an object, and skills and degree of proficiency of an operation can be improved, and the three-dimensional kidney neoplasm surgery simulation method can be used in medical teaching.

Systems, methods, and apparatus allow for the real-time rendering of specular effects within a three-dimensional model. At least one implementation allows a user to create a map that comprises a representation of at least one light source within a three-dimensional model. Furthermore, at least one implementation casts a viewpoint ray to an object surface point, wherein the viewpoint ray comprises a ray extending from a user perspective within the three-dimensional model. Additionally, at least one implementation casts a reflection ray of the viewpoint ray. Further, at least one implementation identifies an intersection point between the reflection ray and the map. Still further, at least one implementation calculates the specular reflection of the object surface point based on the intersection point.

To provide an image processor with which the amount of rendering can be reduced. A plurality of primitives are categorized into a first group of primitives that are to be displayed on a display and a second group of primitives that are not to be displayed thereon, by an XYZ clipping section, a Z testing section, and a stencil testing section, according to the data about the plurality of primitives in a primitive buffer. A two-dimensional image is drawn in a frame buffer using the data for the first group of primitives in the primitive buffer.

Embodiments of the present invention are operable to communicate a list of important shaders and their current best-known compilations to remote client devices over a communications network. Client devices are allowed to produce modified shader compilations by varying optimizations. If a client device produces a modified compilation that beats an important shader's current best-known compilation, embodiments of the present invention can communicate this new best-known shader compilation back to a host computer system. Furthermore, embodiments of the present invention may periodically broadcast the new best-known shader compilation back to client devices for possible further optimization or for efficient rendering operations using the best-known shader compilation.

The invention provides a vehicle driving trajectory rendering method and device, equipment and a storage medium. The method comprises the steps of determining the spatial complexity of roads accordingto the distance between the roads in a road network; according to the spatial complexity of the roads, determining at least one target area; according to the spatial complexity of the roads in each target area, determining the road network complexity of the target area; matching target trajectory points with the roads to obtain a target matching road between any two adjacent target trajectory points; determining the matching complexity of any two adjacent target trajectory points according to the target matching roads; determining the connected road network complexity of any two adjacent target trajectory points according to the road network complexity of any two adjacent trajectory points or the target area where the target matching roads are located; and rendering target vehicle drivingtrajectories according to the matching complexity and the connected road network complexity. According to the method, on the premise of reducing the rendering disorder degree, the large-scale vehicledriving trajectories are rendered really.

The invention discloses a rendering processing method and device and mobile terminal equipment. The rendering processing method includes the following steps: enabling a vertex shader of a graphic processing unit (GPU) to acquire skeletal animation data that is pre-sampled by a central processing unit (CPU) from the texture in an offline mode; decoding pixel points in the acquired skeletal animation data into a transformation matrix to perform a vertex transformation operation; and performing GPU instantiation rendering according to the skeletal animation data subjected to the vertex transformation operation. According to the scheme provided by the invention, the smooth real-time rendering of large-scale crowds can be achieved on the mobile terminal equipment.

A system, method and a computer program product are provided for distributing prim groups for parallel processing in a single clock cycle. A work distributor divides a draw call for primitive processing into a plurality of prim groups according to a prim group size. The work distributor then distributes the plurality of prim groups to a plurality of shader engines for parallel processing of the plurality of prim groups during a clock cycle. The size of a prim group and a number of prim groups are scaled to the plurality of shader engines.

A path tracing system in which the traversal task is distributed between one global acceleration structure, which is central in the system, and multiple local acceleration structures, distributed among cells, of high locality and of autonomous processing. Accordingly, the centrality of the critical resource of accelerating structure is reduced, lessening bottlenecks, while improving parallelism.

The invention discloses a method for converting a BIM model into a GIS model. According to the method, directly carrying out format conversion in BIM native software; extracting attribute informationas an Excel file, associating the attribute information with a geometric structure through a unique ID, establishing a central point position file of each model part, and finally outputting a GIS model with correct geometric structure, attribute and relative relationship of the BIM model. Meanwhile, after the model is subjected to double optimization, the GIS platform is entered, and efficient browsing and complete attribute reservation of the BIM model in the GIS platform are achieved. According to the method, BIM standard entity model data can be automatically converted into a GIS model; the method guarantees the integrity of the geometric information of the BIM model, guarantees the correctness of the geometric topological relation and the correct mapping of the attribute information,can provide a good data guarantee for the integrated application of the BIM and the GIS, and provides a basis for the application of the BIM model in a smart city.

The subject application is directed to a system and method for document rendering. Scanline memory locations are first allocated by a memory allocation unit corresponding to a scanline of an electronic document to be rendered. Instruction memory locations are then allocated for each scanline memory location. An electronic document having at least one output primitive is then received and a unique identifier is assigned to each of the primitives. Each output primitive is then converted into a series of instructions, associated with one or more scanline memory locations. Each instruction is then stored in an allocated instruction memory location corresponding to a selected scanline memory location. An encoded scanline output file, including content of each instruction memory location corresponding to each scanline memory location, is communicated to an associated document rendering device. Each primitive is then rendered according to an output priority based upon identifiers associated with the primitives.

The embodiment of the invention discloses a method and device for controlling the mouth shape change of a three-dimensional virtual portrait, and relates to the field of cloud computing. A specific embodiment of the method comprises the steps of obtaining a to-be-played voice; sliding a preset time window in the to-be-played voice according to a preset step length to obtain at least one voice segment; generating a mouth shape control parameter sequence for the to-be-played voice based on the at least one voice segment; and controlling the mouth shape of a preset three-dimensional virtual portrait to change based on the mouth shape control parameter sequence in response to playing of the to-be-played voice. According to the embodiment, the mouth shape control parameter sequence is automatically generated based on the to-be-played voice, so that the voice and the three-dimensional virtual portrait with the synchronously changed mouth shape are efficiently rendered.

The invention relates to graphics processing systems. A smooth curve is represented in a graphics texture by setting the texels that are inside the curve 1 to a value greater than a predetermined threshold value and the texels that are outside the curve 1 to a value less than the threshold value (or vice-versa). The texture value returned for a sampled position can thus be used to determine whether the sampled position should be treated as being inside the curve 1 or not. The texture is optimised for sampling using bi-linear filtering.

The invention discloses a three-dimensional terrain model rendering method. The method includes the following steps that first, data of contour lines and elevation points of a two-dimensional topographic map are extracted through a secondary development tool, and a standard code format file of a computer is generated; second, the topographic data are input into three-dimensional modeling software, and topographic point cloud data are generated; third, a topographic curved surface is generated through the topographic point cloud data, and a boss is established within the topographic range; fourth, the topographic curved surface and the boss are subjected to partition or Boolean calculation, and a topographic three-dimensional model is established; fifth, computer development languages are adopted for secondary development, aerial photos are fast compressed according to coordinates and automatically spliced, and then the topographic three-dimensional model is subjected to rendering; sixth, the three-dimensional visualization model of a large scale terrain environment is generated. The method solves the problems that a traditional rending mode is large in workload and tedious in process and can be widely applied to the technical field of three-dimensional simulation.

The invention provides an image rendering control method, terminal equipment and a storage medium. The method comprises the steps of superposing a transparent channel on a display interface to obtaina to-be-processed area; obtaining pixel data of the to-be-processed area, and calculating pixel adjustment parameters according to the control pixel coefficient and the pixel data; and adjusting the pixel point state of the to-be-processed area according to the pixel adjustment parameters to complete pixel state switching display of the display interface. Regional rendering is carried out on the display interface, and the rendering display mode is more flexible and efficient.

A triangular polygon drawing apparatus includes parameter calculating means 1 for calculating increment parameters from vertices V0 to V2 of a triangular polygon, triangle type determining means 2 for classifying the shape of the triangular polygon according to the direction and slope of a major edge of the triangular polygon so as to determine a moving direction in which pixels are to be moved, start pixel calculating means 3 for calculating various components of a start pixel, and pixel moving means 4 and pixel interpolating means 5 for generating pixels starting from the start pixel by interpolation with respect to a direction of an X axis and saving a generated pixel M that is placed inside the triangular polygon across the major edge for the first time, for generating pixels running from the major edge to a minor edge by interpolation so as to draw one scanline of said triangular polygon, and for generating a start pixel of the next scanline from the saved pixel M by interpolation with respect to a direction of a Y axis.

The invention discloses an ellipsoid drawing collaborative optimization method based on the digital earth. By using the method, efficient global or large-range volume rendering covering the digital earth can be realized, the average frame rate is 30FPS or above, and the method has a film fluency level. According to the method, the actual calculation number of light sampling points is greatly reduced by constructing the proxy ellipsoid geometry, the data ellipsoid shell three-dimensional grid bounding box and the digital earth ellipsoid and skipping the light sampling points or terminating light sampling in advance (mainly eliminating the sampling points in the earth and on the back of the earth); meanwhile, data of the ellipsoid shell three-dimensional grid are organized into three-dimensional textures, calculation of ellipsoid trilinear interpolation and a transfer function is optimized through efficient texture query based on a GPU, and finally the volume rendering performance facing the digital earth is integrally improved.

The invention discloses a rendering method and device, electronic equipment and a storage medium, and relates to the field of artificial intelligence. According to the specific implementation scheme,the rendering method comprises the steps of obtaining to-be-rendered content, the category of the to-be-rendered content, equipment end information and server information for providing the to-be-rendered content; determining information of a first rendering template according to the category of the to-be-rendered content, the equipment end information and the server information; searching a corresponding first rendering template according to the information of the first rendering template; and under the condition that the first rendering template can be found, rendering the to-be-rendered content by adopting the first rendering template. According to the embodiment of the invention, flexible and efficient rendering can be realized.

The invention discloses a graph rendering method and device, a storage medium and electronic equipment. The method comprises the steps that a to-be-processed first graphic model is obtained, the first graphic model comprises a set of geometric figures, a target view angle and target deletion parameters under the target view angle are obtained, the to-be-deleted geometric figures in the first graphic model under the target view angle are determined according to the target deletion parameters, and the to-be-deleted geometric figure in the first graphic model is deleted to obtain a second graphic model, and thus rendering the second graphic model under the target view angle. According to the invention, the technical problem of relatively low graphic rendering efficiency in related technologies is solved.