Programmable sample filtering for image rendering
October 3, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSystem and method for drawing antialiased polygons Architecture and apparatus for image generation utilizing enhanced memory devices Method and apparatus for anti-aliasing polygon edges in a computer imaging system Antialiasing of silhouette edges Floating point processor for a three-dimensional graphics accelerator which includes floating point, lighting and set-up cores for improved performance Computer graphics system and method employing frame buffer having subpixel field, display fields and a control field for relating display fields to the subpixel field Filter RAMDAC with hardware 11/2-D zoom function Fly-through computer aided design method and apparatus Selective refinement of progressive meshes Method for measuring the fidelity of warped image layer approximations in a real-time graphics rendering pipeline InventorsApplicationNo. 970077 filed on 10/03/2001US Classes:345/419Three-dimensionExaminersPrimary: Zimmerman, MarkAssistant: Santiago, Enrique L Attorney, Agent or FirmInternational ClassG06T 015/00AbstractA graphics system configured to perform programmable filtering of samples to generate pixel values. The graphics system comprises a frame buffer, an accelerator unit and a video output processor. The accelerator unit receives graphics primitives, renders samples for the graphics primitives, and stores the rendered samples into a sample area of the frame buffer. The accelerator unit subsequently reads the samples from the sample area of the frame buffer, and filters the samples with a programmable filter having a programmable support region. The resulting pixel values are stored in a pixel area of the frame buffer. The video output processor reads the pixel values from the pixel area and converts the pixel values into a video signal which is provided to a video output port.Field of SearchThree-dimensionSolid modelling Hidden line/surface determining Z buffer (depth buffer) Tessellation Voxel Lighting/shading Space transformation Adjusting level of detail Attributes (surface detail or characteristic, display attributes) Color or intensity Anti-aliasing or image smoothing Save attributes for each object affecting a given pixel Subpixel processing Pixel fragment Convolving technique Merge or overlay Animation | |
