摘要:
A method and an apparatus of enhancing a ray tracing speed. The method of enhancing a ray tracing speed may group a secondary ray based on a direction of the secondary ray in a 3D space, and may perform packet tracing based on the grouped secondary ray.
摘要:
Disclosed is a hybrid and scalable rendering device and a method thereof. The hybrid and scalable rendering device may selectively apply at least one of rasterization rendering, a radiosity rendering, and a ray-tracing rendering, according to material properties of a target object for rendering, a distance between the target object and a give camera position, a capability of hardware, and the like.
摘要:
A method and an apparatus of enhancing a ray tracing speed. The method of enhancing a ray tracing speed may group a secondary ray based on a direction of the secondary ray in a 3D space, and may perform packet tracing based on the grouped secondary ray.
摘要:
A scalable three-dimensional (3D) mesh encoding method includes dividing the 3D mesh into layers of complexity into a plurality of graduated levels and generating vertex position information and connectivity information of each of the plurality of levels. The vertex position information about the 3D mesh is encoded based on a weighting in each bit plane and vertex position information having a higher weighting in each bit plane is first encoded.
摘要:
A graphic processing unit (GPU) and method for decompressing compressed 3-dimensional (3D) compressed data. The GPU may extract segment information by analyzing a compressed data header and decompress segments included in a bit stream based on the segment information.
摘要:
A method for forming a conductive film for a semiconductor device wherein a conductive film is formed on each wafer loaded in a boat of a vertical furnace of a low pressure chemical vapor deposition apparatus provided with a chamber, a reaction tube in a center portion of the chamber, a boat loaded in the reaction chamber and a heater surrounding the chamber. The method includes a decompression step for reducing pressure in the chamber to a vacuum condition, a deposition step for depositing a conductive film on each wafer by introducing reaction gas into the chamber in the vacuum condition, a purge step for removing from the chamber toxic gas generated in the deposition step, and a normal pressure step for increasing pressure and temperature in the chamber, wherein the pressure increases from the normal pressure step and the temperature increases from the purge step. The method obtains deposition films of high quality which have similar properties since the conductive film deposited on each wafer in an annealing process of the normal pressure step has little shrinkage.
摘要:
Disclosed is a method and apparatus for encoding a three-dimensional (3D) mesh. The method for encoding the 3D mesh includes determining a priority of a gate configuring a 3D mesh corresponding to a 3D object, removing vertices configuring the 3D mesh using the determined priority of the gate, and simplifying the 3D mesh.
摘要:
An integrated circuit comprising an output driver including an output terminal, and a receiving circuit including a termination resistor connected between the output terminal and a ground. The output driver comprising a first NMOS transistor configured to pull up a voltage of the output terminal to a pull-up voltage in response to a pull-up signal, and a second NMOS transistor configured to pull down the output terminal to a ground voltage in response to a pull-down signal.
摘要:
Disclosed is a three-dimensional (3D) mesh compression apparatus and method. The 3D mesh compression apparatus may generate a base mesh through a mesh simplification, may separately compress the base mesh and vertices eliminated by the simplification, may construct a covariance matrix based on a topological distance between the eliminated vertices, and may compress 3D mesh data based on the covariance matrix.
摘要:
A data processing apparatus and method. A vertex grouping unit of the data processing apparatus may group, into at least one group, a plurality of vertices included in a three-dimensional (3D) object desired to be compressed. A prediction mode determination unit may determine a prediction mode for compressing a vertex position with respect to each of the at least one group. A coder may code a prediction error vector and an identification (ID) index of the prediction mode determined with respect to each of the at least one group.