Ghosting effect realization method and device

Abstract

The embodiment of the invention discloses a ghosting effect realization method and device. The realization method comprises the steps of determining target objects which are picture elements needing to realize a ghosting effect, copying predetermined number of the target objects to obtain copy objects, arranging the obtained target objects and the copy objects according to the motion tracks of the target objects, setting transparency of the copy objects from near to far and from high to low according to the copy objects and the target objects, and displaying the target objects and the copy objects. In the process of producing the ghosting effect, a whole image frame does not need to be stored in a render buffer area, and transparency hybrid processing on the whole image frame is not necessary; therefore, data processing resources and storage resources which are needed by the realization of the ghosting effect can be reduced, the requirements for hardware are reduced, and a smooth visual effect can be achieved in equipment with lower performance hardware.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a method and device for realizing the afterimage effect. Background technique [0002] Afterimage is a series of blurred images of an object that follows the object on the moving path in order to express the high-speed movement of an object in film and television or video games. [0003] The current method to achieve the afterimage effect is usually as follows: [0004] Turn off the rendering clearing method, let the image frame rendered by the previous frame remain in the rendering buffer, and then use the newly drawn image frame and the remaining image frame to perform transparent mixing processing, so that they overlap, thereby bringing a visual effect Afterimage effect. [0005] In order to illustrate the above scheme more vividly, as figure 1 As shown, the left side is the image frame, and the upper three residual frames are the image frames remaining in the ren...

AI Technical Summary

Problems solved by technology

[0006] Since the previous image frame needs to be saved in the rendering buffer, and each frame of image used for display needs to be transparently mixed with the rendering buffer and the currently rendered image frame, the hardware requirements are relatively high. The frame rate (Frame rate) is relatively low when using

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