52 results about "Texel" patented technology

A graphics system including a custom graphics and audio processor produces exciting 2D and 3D graphics and surround sound. The system includes a graphics and audio processor including a 3D graphics pipeline and an audio digital signal processor. The graphics pipeline renders and prepares images for display at least in part in response to polygon vertex attribute data and texel color data stored as a texture images in an associated memory. An efficient texturing pipeline arrangement achieves a relatively low chip-footprint by utilizing a single texture coordinate / data processing unit that interleaves the processing of logical direct and indirect texture coordinate data and a texture lookup data feedback path for “recirculating” indirect texture lookup data retrieved from a single texture retrieval unit back to the texture coordinate / data processing unit. Versatile indirect texture referencing is achieved by using the same texture coordinate / data processing unit to transform the recirculated texture lookup data into offsets that may be added to the texture coordinates of a direct texture lookup. A generalized indirect texture API function is provided that supports defining at least four indirect texture referencing operations and allows for selectively associating one of at least eight different texture images with each indirect texture defined. Retrieved indirect texture lookup data is processed as multi-bit binary data triplets of three, four, five, or eight bits. The data triplets are multiplied by a 3×2 texture coordinate offset matrix before being optionally combined with regular non-indirect coordinate data or coordinate data from a previous cycle / stage of processing. Values of the offset matrix elements are variable and may be dynamically defined for each cycle / stage using selected constants. Two additional variable matrix configurations are also defined containing element values obtained from current direct texture coordinates. Circuitry for optionally biasing and scaling retrieved texture data is also provided.

A system, method, and computer program product are provided for updating texture on a graphical display object with overscan. A preprocessor stage defines an overscan region representing an extension of an object surface rasterized in texture space. A texture update stage creates a dilated texture map that includes updated mapped texels for a mapped region and updated overscan texels corresponding to the overscan region, such that texture is updated in the mapped region and the overscan region. Texel-based and polygon-based preprocessor stages and texture update stages are provided.

An apparatus and method for quickly and efficiently providing texel data relevant for displaying a textured-image. A large amount of texture source data, such as photographic terrain texture, is stored as a two-dimensional or three-dimensional texture MIP-map on one or more mass storage devices. Only a relatively small clip-map representing selected portions of the complete texture MIP-map is loaded into faster, more expensive memory. These selected texture MIP-map portions forming the clip-map consist of tiles which contain those texel values at each respective level of detail that are most likely to be mapped to pixels being rendered for display based upon the viewer's eyepoint and field of view. To efficiently update the clip-map in real-time, texel data is loaded and discarded from the edges of tiles. Attempts to access a texel lying outside of a particular clip-map tile are accommodated by utilizing a substitute texel value obtained from the next coarser resolution clip-map tile which encompasses the sought texel.

The invention discloses a visualized management and retrieval method for a digital image. The method comprises the following steps: establishing a binary bitmap sequence for the digital image by a digital image processing technological system and extracting a plurality of feature primitives from the sequence (the primitives refer to factors in the image which are different from pixels, such as a line segment, a curve, a closed figure, texture and the like); correspondingly extracting RGB, a gray value and other data of pixels in the peripheral range of relevant positions from the original digital image according to the position range of the primitives, extracting a set of texture elements according to the texture range related to the primitives, and indexing the digital image according to a plurality of the primitives, the set of the texture elements and corresponding pixel values; and storing the digital image and the image indexing, relevant text comment, network link analysis and the like for retrieving the digital image. In the invention, indexing of the digital image is established based on the binary bitmap sequence, the primitives, the texture elements, the pixels and the like, thus achieving small data quantity and fast and convenient retrieval and being applicable to digital image management, retrieval and search for a mobile communication network and the Internet.

A method, apparatus, system, and computer program product provide the ability to render a line having line stylization / linetype pattern via texture mapping of a graphics processing unit (GPU). Linetype information for a pattern of a linetype for the line is acquired. The pattern is stored in a texture by encoding a type of element of the pattern and a texel center location. The GPU renders the line by computing a distance between a pixel of the line and the texel center location, determining if the distance exceeds a threshold, and rendering the pixel if the distance is within the threshold.

A method of organizing memory for storage of texture data, in accordance with one embodiment of the invention, includes accessing a size of a mipmap level of a texture map. A block dimension may be determined based on the size the mipmap level. A memory space (e.g., computer-readable medium) may be logically divided into a plurality of whole number of blocks of variable dimension. The dimension of the blocks is measured in units of gobs and each gob is of a fixed dimension of bytes. A mipmap level of a texture map may be stored in the memory space. A texel coordinate of said mipmap level may be converted into a byte address of the memory space by determining a gob address of a gob in which the texel coordinate resides and determining a byte address within the particular gob.

Multi-pass apparatus and method for ray tracing shading. For example, one embodiment of an apparatus comprises: graphics processing circuitry to execute a sequence of visibility testing operations related to texels within a texture domain to generate visibility results; a register or memory to store a texel mask; texel mask update circuitry / logic to update the texel mask based on the visibility results, the texel mask comprising a plurality of bits to indicate visibility of the texels within the texture domain, the texel mask update circuitry / logic to set a first bit to indicate whether any bits in the texel mask indicate a visible texel; a shader dispatcher to initiate conditional dispatch operations only if the first bit is set to indicate that at least one bit in the texel mask indicates a visible texel, wherein to perform the conditional dispatch operations, the shader dispatcher is to dispatch texel shaders for only those texels that the texel mask indicates may be visible; and a plurality of execution units (EUs) to execute the shaders dispatched by the shader dispatcher.

The invention provides a graphics processor and an acceleration method thereof. The graphics processor comprises a texel unit and an execution unit. The texel unit comprises a reading module. The execution unit comprises: an im2col module which is used for executing an im2col algorithm and expanding an original matrix according to the size of a convolution kernel to obtain an expanded matrix; an execution unit which multiplies the extended matrix by the convolution kernel to obtain a feature matrix; a reading module which calculates a characteristic coordinate of each element of the characteristic matrix according to the coordinate of the extended matrix, and obtains an original coordinate of each element of the original matrix according to the characteristic coordinate, the convolution kernel, the pace value and the filling value, wherein the reading module reads at least one of the storage blocks covered by the original coordinates of each element of the original matrix, and transmits data corresponding to the original coordinates in the at least one of the storage blocks to the im2col module.

A decoder unit is configured to decode a plurality of texels in accordance with a texel request, the plurality of texels being encoded across one or more blocks of encoded texture data each encoding a block of texels, and includes a first set of one or more decoders, each of the first set of decoders being configured to decode n texels from a single received block of encoded texture data; a second set of or more decoders, each of the second set of decoders being configured to decode p texels from a single received block of encoded texture data, where p<n; and control logic configured to allocate blocks of encoded texture data to the decoders in accordance with the texel request.

A graphic processing unit and a graphic data accessing method are provided. The graphic processing unit receives a graphic processing request instruction which comprises a first coordinate bits and a second coordinate bits of a under processing texel image, from the server processing unit. The graphic processing unit retrieves at least one first bit of the first coordination bits, retrieves at least one second bit of the second coordination bits, and derives a cache index from the at least one first bits and the at least one second bits via an arithmetic logic operation.

Regions 150 and 152 on a texture image plane 140 that correspond individually to pixels 146 and 148 representing an image on a texture image mapping target surface 144 in a screen plane 142 on which to define a display image are determined using predetermined transformation equations. The number of sampling points and their distribution are determined for the determined region in accordance with its shape and its size. Texel values in the determined region are then sampled. An average of the sampled values is acquired as the value of each of the original pixels 146 and 148.

The embodiment of the invention discloses an image rendering method and a related device, and the method comprises the steps: obtaining texture data corresponding to a particle road condition map, wherein the texture data comprises texel data corresponding to each road segment in the particle road condition map, the texel data is used for bearing the position data of a reference sampling point on the corresponding road segment, and the reference sampling point is obtained by sampling a particle motion track supported by a road section based on a reference frame rate; when each frame of picture of the particle road condition graph is rendered, aiming at each particle in the particle road condition graph, determining position data of the particle at an animation operation moment according to the animation operation moment corresponding to the picture and based on texel data corresponding to a road section to which the particle belongs in the texture data; and rendering the frame of picture in the particle road condition graph according to the position data of each particle in the particle road condition graph at the animation operation moment. The embodiment of the invention can be applied to the map field and the traffic field, the CPU calculation overhead can be reduced, and the rendering efficiency of the particle road condition graph is improved.

A computer graphics rendering apparatus according to an embodiment of the present invention generates a screen image, using plural texture images having different mipmap levels. The apparatus generates a normalized texture coordinate of a texture image, generates, from the normalized texture coordinate of the texture image, a texel coordinate of a texel in the texture image, according to a mipmap level of the texture image, and generates, regarding an image block in the texture image, an index value indicating a cache line corresponding to the image block, using a texel coordinate of a texel in the image block. The apparatus generates the index value such that index values of image blocks in the same position are different, between two texture images having mipmap levels adjacent to each other.

The invention relates to the technical field of computer hardware modeling, in particular to a TLM microstructure oriented to a GPU hardware texel valuing method. The TLM microstructure comprises a texel information acquisition module 1, a texel coordinate processing module 2, a filtering mode texel address correction module 3, a frame texel address correction module 4 and a texel valuing module 5. According to the microstructure, the function and the implementation structure of the texel address correction algorithm based on the TLM model are achieved, the function verification problem of thecorrection algorithm oriented to the GPU hardware texel address TLM microstructure is solved, and RTL design and development are effectively accelerated.