Temporal and spatial coherent ray tracing for rendering scenes with sampled and geometry data
September 1, 2019. 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 ReferencesPrioritization scheme for enhancing the display of ray traced images Object-local sampling histories for efficient path tracing Three dimensional computer graphics employing ray tracing to compute form factors in radiosity Parallel computing system for volumetric modeling, data processing and visualization Rendering of 3D scenes on a display using hierarchical z-buffer visibility Image generating apparatus and method of generating an image by parallel processing thread segments Three dimensional view using ray tracing through voxels subdivided numerically using object based parameters Method of and apparatus for constructing an image of a notional scene by a process of ray tracing System and method of image generation and encoding using primitive reprojection Apparatus and method for three-dimensional terrain rendering InventorsAssigneeApplicationNo. 388338 filed on 09/01/1999US Classes:345/426, Lighting/shading345/557CacheExaminersPrimary: Razavi, MichaelAssistant: Yang, Ryan Attorney, Agent or FirmInternational ClassesG06T 015/50G09G 005/36 AbstractA method traces rays through graphical data. The method partitions the graphical data into a plurality of blocks according to a scheduling grid. For each block, a ray queue is generated. Each entry in the ray queue representing a ray to be traced through the block. The ray queues are ordered spatially and temporally using a dependency graph. The rays are traced through the blocks according to the ordered list.Other References
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