Parallel graphics rendering method based on sort-first load balancing
A load balancing and graphics technology, applied in graphics and image conversion, image data processing, resource allocation, etc., can solve problems that affect prediction stability, reduce parallel rendering efficiency, etc., and achieve the effect of improving parallel rendering efficiency and accurate prediction
Active Publication Date: 2017-06-06
沈阳新松虚拟现实产业技术研究院有限公司
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However, the traditional load balancing algorithm based on space-time transformation only predicts the load of the next frame based on the drawing of the previous frame. This prediction method is too simple. When a large load suddenly appears, it may affect the stability of the prediction. , reducing parallel drawing efficiency
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[0030] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0031] This embodiment is a parallel graphics rendering method based on sort-first load balancing, which can effectively utilize the inter-frame similarity of graphics, reduce network pressure, and is suitable for a rendering cluster environment with a small communication bandwidth. Such as figure 1 As shown, the graphics parallel rendering system based on the sort-first architecture in this embodiment is composed of a client, a server node, multiple rendering nodes and an image synthesis node, and multiple rendering nodes form a rendering cluster. All nodes are connected through high-speed Ethernet. The client starts graphics drawing according to the user's request; the server node, as the hub of the graphics parallel rendering system, controls the operation of the entire graphics parallel rendering system globally. The main ...
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The invention provides a parallel graphics rendering method based on sort-first load balancing. The method comprises steps of enabling a server node to subject the first frame of a graph to be rendered to screen division according to an average division principle, and to assign the divided parts to the rendering nodes to complete parallel rendering and then to achieve splicing; enabling the server node to predict the load rendered in the next frame; establishing a binary tree of screen division rendered by the (i+1)th frame from top to bottom by using the screen as a root node, using respective rendering nodes as leaf nodes, and using the load predicted values rendered by the (i+1)th frames of respective rendering nodes as the weights of respective rendering nodes; assigning the screen rendering regions of the (i+1)th frames to respective rendering nodes; and enabling a graph synthesis node to perform graphic splicing and synchronous output after respective rendering nodes performs parallel rendering. The method adopts a multi-frame joint forecasting method and similarity between sort-first frames, accurately predicts the next frame load and improves the parallel rendering efficiency.
Description
technical field [0001] The invention belongs to the technical field of parallel drawing, in particular to a parallel drawing method of graphics based on sort-first load balancing. Background technique [0002] With the rapid development of science and technology, computer graphics has penetrated into the fields of realistic graphics, scientific computing visualization, virtual environment, multimedia technology, computer animation, computer-aided engineering drawing, etc. More and more complex, making the calculation of scene rendering increase exponentially. However, traditional rendering methods using GPU hardware technology are not only expensive, but also poor in scalability. Therefore, building a cluster parallel graphics rendering system is an important research direction to solve these problems. [0003] Parallel graphics drawing is mainly divided into the following three categories according to the different occurrence times of the primitive attribution: sort-first...
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IPC IPC(8): G06T1/20G06T3/40G06F9/50
Inventor 高天寒罗晓宇
Owner 沈阳新松虚拟现实产业技术研究院有限公司